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[ CAS No. 3963-62-0 ] {[proInfo.proName]}

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Cat. No.: {[proInfo.prAm]}
Chemical Structure| 3963-62-0
Chemical Structure| 3963-62-0
Structure of 3963-62-0 * Storage: {[proInfo.prStorage]}
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Product Details of [ 3963-62-0 ]

CAS No. :3963-62-0 MDL No. :MFCD00008143
Formula : C14H15N Boiling Point : -
Linear Structure Formula :- InChI Key :RXMTUVIKZRXSSM-UHFFFAOYSA-N
M.W : 197.28 Pubchem ID :77575
Synonyms :

Calculated chemistry of [ 3963-62-0 ]

Physicochemical Properties

Num. heavy atoms : 15
Num. arom. heavy atoms : 12
Fraction Csp3 : 0.14
Num. rotatable bonds : 3
Num. H-bond acceptors : 1.0
Num. H-bond donors : 1.0
Molar Refractivity : 63.41
TPSA : 26.02 Ų

Pharmacokinetics

GI absorption : High
BBB permeant : Yes
P-gp substrate : No
CYP1A2 inhibitor : No
CYP2C19 inhibitor : No
CYP2C9 inhibitor : No
CYP2D6 inhibitor : Yes
CYP3A4 inhibitor : No
Log Kp (skin permeation) : -5.93 cm/s

Lipophilicity

Log Po/w (iLOGP) : 2.32
Log Po/w (XLOGP3) : 2.22
Log Po/w (WLOGP) : 2.78
Log Po/w (MLOGP) : 3.34
Log Po/w (SILICOS-IT) : 3.22
Consensus Log Po/w : 2.77

Druglikeness

Lipinski : 0.0
Ghose : None
Veber : 0.0
Egan : 0.0
Muegge : 2.0
Bioavailability Score : 0.55

Water Solubility

Log S (ESOL) : -2.86
Solubility : 0.275 mg/ml ; 0.00139 mol/l
Class : Soluble
Log S (Ali) : -2.4
Solubility : 0.783 mg/ml ; 0.00397 mol/l
Class : Soluble
Log S (SILICOS-IT) : -5.01
Solubility : 0.00192 mg/ml ; 0.00000973 mol/l
Class : Moderately soluble

Medicinal Chemistry

PAINS : 0.0 alert
Brenk : 0.0 alert
Leadlikeness : 1.0
Synthetic accessibility : 1.75

Safety of [ 3963-62-0 ]

Signal Word:Warning Class:N/A
Precautionary Statements:P261-P305+P351+P338 UN#:N/A
Hazard Statements:H315-H319-H335 Packing Group:N/A
GHS Pictogram:

Application In Synthesis of [ 3963-62-0 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 3963-62-0 ]

[ 3963-62-0 ] Synthesis Path-Downstream   1~88

  • 1
  • [ 108-97-4 ]
  • [ 3963-62-0 ]
  • 1-(2,2-diphenyl-ethyl)-1<i>H</i>-pyridin-4-one [ No CAS ]
  • 2
  • [ 86-29-3 ]
  • [ 3963-62-0 ]
YieldReaction ConditionsOperation in experiment
98.5% With triethylamine alane In tetrahydrofuran for 1h; Ambient temperature;
90% With ammonia; hydrogen In toluene at 120℃; for 16h; Autoclave;
With lithium aluminium tetrahydride; diethyl ether
With ethanol; sodium; nickel Hydrogenation;
With methanol; sodium; nickel Hydrogenation;
With acetic acid ester; ethanol; nickel Hydrogenation.Reagens: Wasser;
With sodium hydroxide; platinized nickel Hydrogenation;
With ethanol; ammonia; nickel at 100℃; Hydrogenation;
With lithium aluminium tetrahydride; aluminium trichloride; diethyl ether
With lithium aluminium tetrahydride In diethyl ether
With ammonium hydroxide; hydrogen
With hydrogenchloride; dimethylsulfide borane complex 1.) THF, reflux, 0.25 h, 2.) reflux, 0.5 h; Yield given. Multistep reaction;
With tetra(n-butyl)ammonium borohydride In dichloromethane for 10h; Heating;
75 %Chromat. With sodium tetrahydroborate; water at 35℃; for 1h; General procedure for the reduction of nitroarenes and benzonitriles General procedure: In a 25mL round bottom flask, CuNP/WS was added into amixed solution containing 5mL doubly distilled water and 1 mmol nitroarene or benzonitrile. Next, 4 mmol NaBH4 was added in 4 portions to the reaction mixture and stirredat room temperature for the appropriate amount of time. The progress of the reaction was monitored by TLC [usingethyl acetate/n-hexane as eluent: 1/5]. After completion of the reaction, the reaction mixture was filtered off and thecatalyst rinsed twice with dichloromethane. The organic extracts were washed with H2O, dried over MgSO4 and evaporated in vacuo to give corresponding amines.
With hydrogen In ethyl acetate at 60℃; Flow reactor;

Reference: [1]Cha, Jin Soon; Brown, Herbert C. [Journal of Organic Chemistry, 1993, vol. 58, # 15, p. 3974 - 3979]
[2]Murugesan, Kathiravan; Senthamarai, Thirusangumurugan; Sohail, Manzar; Alshammari, Ahmad S.; Pohl, Marga-Martina; Beller, Matthias; Jagadeesh, Rajenahally V. [Chemical Science, 2018, vol. 9, # 45, p. 8553 - 8560]
[3]Huisgen; Ruechardt [Justus Liebigs Annalen der Chemie, 1956, vol. 601, p. 21,31]
[4]Benoit et al. [Annales Pharmaceutiques Francaises, 1952, vol. 10, p. 181,186]
[5]Kotschhetkow; Petrutschenko [Zhurnal Obshchei Khimii, 1958, vol. 28, p. 2252,2254,2255;engl.Ausg.S.2288.2289,2290]
[6]Rupe; Gisiger [Helvetica Chimica Acta, 1925, vol. 8, p. 349]
[7]Decombe [Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1946, vol. 222, p. 90]
[8]Freeman; Ringk; Spoerri [Journal of the American Chemical Society, 1947, vol. 69, p. 858]
[9]Nystrom [Journal of the American Chemical Society, 1955, vol. 77, p. 2544]
[10]Eiden; Iwan [Archiv der Pharmazie und Berichte der Deutschen Pharmazeutischen Gesellschaft, 1970, vol. 303, # 7, p. 612 - 617]
[11]Rajsner,M. et al. [Collection of Czechoslovak Chemical Communications, 1963, vol. 28, p. 1031 - 1043]
[12]Brown, Herbert C.; Choi, Yong Moon; Narasimhan, S. [Synthesis, 1981, # 8, p. 605 - 606]
[13]Wakamatsu, Takeshi; Inaki, Harumi; Ogawa, Akemi; Watanabe, Masako; Ban, Yoshio [Heterocycles, 1980, vol. 14, # 10, p. 1437 - 1440]
[14]Zamani, Asghar; Poursattar Marjani, Ahmad; Nikoo, Abbas; Heidarpour, Mojtaba; Dehghan, Ahmad [Inorganic and Nano-Metal Chemistry, 2018, vol. 48, # 3, p. 176 - 181]
[15]Mészáros, Rebeka; Peng, Bai-Jing; Ötvös, Sándor B.; Yang, Shyh-Chyun; Fülöp, Ferenc [ChemPlusChem, 2019, vol. 84, # 10, p. 1508 - 1511]
  • 3
  • [ 3963-62-0 ]
  • [ 98-88-4 ]
  • [ 77198-90-4 ]
YieldReaction ConditionsOperation in experiment
95% With sodium hydroxide In water at 0℃; for 1h;
83% With sodium hydroxide In dichloromethane; water at 0℃; for 0.166667h;
67% With N,N-dimethyl acetamide at 0 - 23℃; for 1.5h; Green chemistry; Amide Formation of 4g (Figure 1) A solution of acid chloride 3-4g (1.4247 g, 10.14 mmol) in DMAC (5mL) was prepared at r.t. The solution was transferred to a 30 mL round-bottomed flask and cooled to 0 °C (ice-water bath). While stirring and cooling at 0 °C, a solution of amine 2-4g (2.2351 g, 11.33mmol) in DMAC (5 mL) was added over 8 min at 0 °C. The mixture was stirred at 0 °C for 10 min. The ice bath was replaced with a water bath and the mixture was stirred at 23 °C for 1.5 h. The completion of the reaction was confirmed by TLC, and H2O (20 mL) was added. A white precipitate was formed and the mixture was stirred overnight. The solid was filtered by suction, washed with H2O (100 mL), anddried in vacuum. The precipitated amide 4g was obtained as a white powder (2.0365 g, 67%); mp 144-145 °C; mp 145-146 °C (colorless needles after recrystallized from MeOH). The product was pure enough to give a satisfactory combustion analysis without further purification.1H NMR (400 MHz, CDCl3): δ= 7.571 (2 H, d, J= 7.2 Hz), 7.44 (1 H, tt,J= 7.4, 1.2 Hz), 7.372-7.213 (12 H, m), 4.325 (1 H, t, J= 8.0 Hz), 4.089(2 H, dd, J= 8.0 Hz, 6.0 Hz).13C NMR (100 MHz, CDCl3): δ= 167.60, 141.95, 134.70, 131.53,128.93, 128.65, 128.21, 127.05, 126.90, 50.65, 44.38.HRMS (ESI-TOF): m/z [M + Na]+) calcd for C21H19NONa: 324.1359;found: 324.1363.Anal. Calcd for C21H19NO: C, 83.69; H,6.35; N, 4.65. Found: C, 83.40; H,6.50; N, 4.66.
With pyridine
With sodium hydroxide
With sodium hydroxide at 0℃; for 2h;

  • 4
  • [ 2004-07-1 ]
  • [ 3963-62-0 ]
  • [ 98383-43-8 ]
YieldReaction ConditionsOperation in experiment
With triethylamine; In ethanol; hexane; water; EXAMPLE 2 N6 -(2,2-Diphenylethyl)-2-aminoadenosine A mixture of 1.25 g of 6-chloro-2-amino-9-(beta-D-ribofuranosyl)purine, 0.899 g of 2,2-diphenylethylamine and 0.503 g of triethylamine is heated under reflux in 30 ml of absolute ethanol under a nitrogen atmosphere for 18 hours. The solvent is evaporated to dryness and residue is treated with 50 ml of cold water. The insoluble organic material is filtered, dried, and purified by medium pressure liquid chromatography on silica gel. The product is eluted with 10% methanol-chloroform. Evaporation of the solvent from the pure fractions affords a colorless solid material. Crystallization from a mixture of CHCl3 -2-propanol (10:1) and hexane affords N6 -(2,2-diphenylethyl)-2-aminoadenosine, mp 134-137 C. Anal. Calcd. for C24 H26 N6 O4 C, 62.32; H, 5.66; N, 18.17 Found: C, 62.18; H, 5.53; N, 17.88
With triethylamine; In ethanol; hexane; water; EXAMPLE 4 N6 -(2,2-Diphenylethyl)-2-aminoadenosine A mixture of 1.25 g of 6-chloro-2-amino-9-(beta-D-ribofuranosyl)purine, 0.899 g of 2,2-diphenylethylamine and 0.503 g of triethylamine is heated under reflux in 30 ml of absolute ethanol under a nitrogen atmosphere for 18 hours. The solvent is evaporated to dryness and residue is treated with 50 ml of cold water. The insoluble organic material is filtered, dried, and purified by medium pressure liquid chromatography on silica gel. The product is eluted with 10% methanol-chloroform. Evaporation of the solvent from the pure fractions affords a colorless solid material. Crystallization from a mixture of CHCl3 -2-propanol (10:1) and hexane affords N6 -(2,2-diphenylethyl)-2-aminoadenosine, mp 134-137 C. Anal. Calcd. for C24 H26 N6 O4: C, 62.32; H, 5.66; N, 18.17. Found: C, 62.18; H, 5.53; N, 17.88.
  • 5
  • [ 2346-74-9 ]
  • [ 3963-62-0 ]
  • [ 135394-02-4 ]
  • 6
  • [ 3963-62-0 ]
  • [ 175353-92-1 ]
  • [ 175354-01-5 ]
YieldReaction ConditionsOperation in experiment
99% With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 25℃; for 20h;
  • 7
  • [ 3963-62-0 ]
  • [ 175354-29-7 ]
  • [ 175353-95-4 ]
YieldReaction ConditionsOperation in experiment
82% With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 25℃; for 20h;
  • 8
  • [ 3963-62-0 ]
  • [ 175353-91-0 ]
  • [ 175353-98-7 ]
YieldReaction ConditionsOperation in experiment
99% With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 25℃; for 20h;
  • 9
  • [ 51719-65-4 ]
  • [ 3963-62-0 ]
  • N-(3,5-Dichloro-benzyl)-3,3-diphenyl-propionamide [ No CAS ]
  • 10
  • [ 3056-18-6 ]
  • [ 3963-62-0 ]
  • [ 98383-72-3 ]
YieldReaction ConditionsOperation in experiment
N-ethyl-N,N-diisopropylamine; In isopropyl alcohol; Preparation 1 2-Chloro-N-(2,2-diphenylethyl)-adenosine 2',3',5'-triacetate A solution of 2,6-dichloro-9-(2,3,5-tri-O-acetyl-beta-D-ribofuranosyl)-9H-purine1 (6.68 g, 14.9 mmol) in 2-propanol (300 ml) was stirred and heated at reflux with 2,2-diphenylethylamine (4.3 g, 21.8 mmol) in the presence of diisopropylethylamine (3.8 ml) for 3.5 h. The cooled mixture was reduced in volume by evaporation in vacuo and the residue was diluted with ethyl acetate (200 ml). This mixture was washed with water (100 ml); 10% citric acid solution (2*100 ml) and water (100 ml) then dried (MgSO4) and evaporated to give the title compound (9.01 g) as a pale yellow froth. A sample (500 mg) was purified by column chromatography on flash silica eluding with ethyl acetate:cyclohexane (1:2). The product (0.34 g) was obtained as a white froth [alpha]D -20 (CHCl3 c=1%).
  • 11
  • [ 67515-60-0 ]
  • [ 621-37-4 ]
  • [ 3963-62-0 ]
  • [ 627-18-9 ]
  • GW656030X [ No CAS ]
  • 12
  • [ 621-37-4 ]
  • [ 3963-62-0 ]
  • [ 93118-03-7 ]
  • [ 627-18-9 ]
  • GW656340X [ No CAS ]
  • 14
  • [ 27550-59-0 ]
  • [ 3963-62-0 ]
  • [ 888700-91-2 ]
  • 15
  • [ 114774-44-6 ]
  • [ 3963-62-0 ]
  • [ 93118-03-7 ]
  • [ 627-18-9 ]
  • [ 405911-09-3 ]
  • 16
  • Rink-isonitrile resin [ No CAS ]
  • [ 1445-73-4 ]
  • [ 3963-62-0 ]
  • [ 5241-64-5 ]
  • 1-(2,2-diphenyl-ethyl)-3-(1<i>H</i>-indol-3-ylmethyl)-9-methyl-1,4,9-triaza-spiro[5.5]undecane-2,5-dione [ No CAS ]
  • 17
  • Rink-isonitrile resin [ No CAS ]
  • [ 3612-20-2 ]
  • [ 3963-62-0 ]
  • [ 5241-64-5 ]
  • 9-benzyl-1-(2,2-diphenyl-ethyl)-3-(1<i>H</i>-indol-3-ylmethyl)-1,4,9-triaza-spiro[5.5]undecane-2,5-dione [ No CAS ]
  • 18
  • Rink-isonitrile resin [ No CAS ]
  • [ 39742-60-4 ]
  • [ 3963-62-0 ]
  • [ 5241-64-5 ]
  • 1-(2,2-diphenyl-ethyl)-3-(1<i>H</i>-indol-3-ylmethyl)-9-phenethyl-1,4,9-triaza-spiro[5.5]undecane-2,5-dione [ No CAS ]
  • 19
  • Rink-isonitrile resin [ No CAS ]
  • [ 4530-20-5 ]
  • [ 19125-34-9 ]
  • [ 3963-62-0 ]
  • 1-(2,2-diphenyl-ethyl)-9-phenyl-1,4,9-triaza-spiro[5.5]undecane-2,5-dione [ No CAS ]
  • 20
  • Rink-isonitrile resin [ No CAS ]
  • [ 13139-15-6 ]
  • [ 19125-34-9 ]
  • [ 3963-62-0 ]
  • 1-(2,2-diphenyl-ethyl)-3-isobutyl-9-phenyl-1,4,9-triaza-spiro[5.5]undecane-2,5-dione [ No CAS ]
  • 21
  • Rink-isonitrile resin [ No CAS ]
  • [ 4530-18-1 ]
  • [ 19125-34-9 ]
  • [ 3963-62-0 ]
  • 3-benzyl-1-(2,2-diphenyl-ethyl)-9-phenyl-1,4,9-triaza-spiro[5.5]undecane-2,5-dione [ No CAS ]
  • 22
  • Rink-isonitrile resin [ No CAS ]
  • [ 19125-34-9 ]
  • [ 2389-45-9 ]
  • [ 3963-62-0 ]
  • {4-[1-(2,2-diphenyl-ethyl)-2,5-dioxo-9-phenyl-1,4,9-triaza-spiro[5.5]undec-3-yl]-butyl}-carbamic acid benzyl ester [ No CAS ]
  • 23
  • Rink-isonitrile resin [ No CAS ]
  • [ 19125-34-9 ]
  • [ 23680-31-1 ]
  • [ 3963-62-0 ]
  • 3-benzyloxymethyl-1-(2,2-diphenyl-ethyl)-9-phenyl-1,4,9-triaza-spiro[5.5]undecane-2,5-dione [ No CAS ]
  • 24
  • Rink-isonitrile resin [ No CAS ]
  • [ 19125-34-9 ]
  • [ 3963-62-0 ]
  • [ 147291-69-8 ]
  • [1-(2,2-diphenyl-ethyl)-2,5-dioxo-9-phenyl-1,4,9-triaza-spiro[5.5]undec-3-yl]-acetic acid benzyl ester [ No CAS ]
  • 25
  • Rink-isonitrile resin [ No CAS ]
  • [ 19125-34-9 ]
  • [ 3963-62-0 ]
  • [ 15761-39-4 ]
  • 1-(2,2-diphenylethyl)-2,5-dioxo-3,4-propano-9-phenyl-1,4,9-triazaspiro[5.5]undecane [ No CAS ]
  • 26
  • Rink-isonitrile resin [ No CAS ]
  • [ 19125-34-9 ]
  • [ 3963-62-0 ]
  • [ 5241-64-5 ]
  • 1-(2,2-diphenyl-ethyl)-3-(1<i>H</i>-indol-3-ylmethyl)-9-phenyl-1,4,9-triaza-spiro[5.5]undecane-2,5-dione [ No CAS ]
  • 27
  • Rink-isonitrile resin [ No CAS ]
  • [ 107100-64-1 ]
  • [ 3963-62-0 ]
  • [ 5241-64-5 ]
  • 1-(2,2-diphenyl-ethyl)-3-(1<i>H</i>-indol-3-ylmethyl)-9-(3-phenyl-propyl)-1,4,9-triaza-spiro[5.5]undecane-2,5-dione [ No CAS ]
  • 28
  • Rink-isonitrile resin [ No CAS ]
  • [ 109807-95-6 ]
  • [ 3963-62-0 ]
  • [ 5241-64-5 ]
  • 1-(2,2-diphenyl-ethyl)-3-(1<i>H</i>-indol-3-ylmethyl)-9-(4-phenyl-butyl)-1,4,9-triaza-spiro[5.5]undecane-2,5-dione [ No CAS ]
  • 29
  • [ 10436-25-6 ]
  • [ 3963-62-0 ]
  • [ 913943-45-0 ]
  • 30
  • 1-(6-phenylhexyl)-4-piperidone [ No CAS ]
  • Rink-isonitrile resin [ No CAS ]
  • [ 3963-62-0 ]
  • [ 5241-64-5 ]
  • 1-(2,2-diphenyl-ethyl)-3-(1<i>H</i>-indol-3-ylmethyl)-9-(6-phenyl-hexyl)-1,4,9-triaza-spiro[5.5]undecane-2,5-dione [ No CAS ]
  • 31
  • Rink-isonitrile resin [ No CAS ]
  • [ 3963-62-0 ]
  • [ 5241-64-5 ]
  • [ 905721-52-0 ]
  • 1-(2,2-diphenyl-ethyl)-3-(1<i>H</i>-indol-3-ylmethyl)-9-(5-phenyl-pentyl)-1,4,9-triaza-spiro[5.5]undecane-2,5-dione [ No CAS ]
  • 32
  • [ 610319-00-1 ]
  • [ 3963-62-0 ]
  • [ 610319-01-2 ]
YieldReaction ConditionsOperation in experiment
63% With potassium carbonate In acetonitrile for 48h; Heating / reflux; 7.c c) (R)-2-(3-{3-[(2, 2-Diphenylethyl) amino]-3-methyl-propoxy}-phenyl) acetic acid methyl ester; To a stirring solution of 2, 2-diphenethylamine (151 mg, 0.765 mmol) and (S)- {3- [3- (toluene-4-sulfonyloxy)-butoxy]-phenyl}-acetic acid methyl ester (300 mg, 0.765 mmol) in acetonitrile (5 mL) was treated with solid K2CO3 (317 mg, 2.30 mmol). The reaction was heated to reflux and stirred for 48 hours. Upon cooling to room temperature, the reaction was filtered, washed with acetonitrile, and the filtrate was concentrated. The crude product was purified by column chromatography over silica gel (silica gel 60, EM Science) using 50% EtOAc: hexane as eluent to afford 200 mg (63% yield) of the title compound as an oil : MS (ESI) 418.2 (M+H+).
  • 33
  • [ 3963-62-0 ]
  • [ 82614-88-8 ]
  • [ 610319-07-8 ]
YieldReaction ConditionsOperation in experiment
100% With potassium carbonate; sodium iodide In acetonitrile Heating / reflux; 17.a Example 17: (R)-2- (3- {3- [ [2, 4-dimethoxybenzyl] (2, 2-diphenylethyl) amino]-1-methyl- propoxy}-phenyl) acetic acid hydrochloride salt ; a) (S)-4- [N- (2, 2-Diphenylethyl)-amino]-butan-2-ol; To a stirring solution of N- (2, 2-diphenylethyl)-amine (1.50 g, 7.61 mmol) and toluene-4-sulfonic acid- (S)-3-hydroxy-butyl ester (1.86 g, 7.61 mmol) [Example 4 (a)] in acetonitrile (15 mL) was added solid K2CO3 (3.15 g, 22.84 mmol) and Nal (3.42 g, 22.84 mmol). The reaction mixture was heated to reflux and stirred overnight. The mixture was cooled to RT, filtered, and the filtrate was concentrated. The crude product was purified by preparative HPLC (TMC CombiPrep PDS, 75X30 mm, 25mL/min, acetonitrile : H20, UV detection at 254 nm) to give 2.18 g (100% yield) of the title compound as an oil. MS (ESI) 270.2 (M+H+).
  • 34
  • [ 3963-62-0 ]
  • [ 5451-40-1 ]
  • [ 884654-08-4 ]
YieldReaction ConditionsOperation in experiment
With diisopropylamine In tetrahydrofuran at 50℃; for 6h; AA1 2,6-Dichloropurine (20.00 g, 106 mmol) is dissolved in THF (250 ml) under an atmosphere of argon. Diisopropylamine (16.38 g, 127 mmol) is added followed by 2,2-diphenylethyl- amine(25.00 g, 127 mmol) and the reaction mixture is stirred at 50 °C. The reaction is shown to be complete by LCMS after 6 hours. 50% of the solvent is removed in vacuo and replaced with MeOH. The resulting precipitate is filtered off and dried to give the title compound. η nmr (d^DMSO, 400 MHz); 8.05(br s, IH), 7.35-7.10(m, 10H), 4.55(m, IH), 4.10(m, 2H), MS (ES+) m/e 350 (MH*).
With diisopropylamine In tetrahydrofuran at 50℃; for 6h; 22 2,6-Dichloropurine (20.00 g, 106 mmol) is dissolved in THF (250 ml) under an atmosphere of argon. Diisopropyiamine (16.38 g, 127 mmol) is added followed by 2,2-diphenylethylamine (25.00 g, 127 mmol) and the reaction mixture is stirred at 5O0C. The reaction is shown to be complete by LCMS after 6 hours. 50% of the solvent is removed in vacuo and replaced with MeOH. The resulting precipitate is filtered off and dried to give the title compound. η nmr (dβ-DMSO, 400 MHz); 8.05(br s, IH), 7.35-7.10(m, 10H), 4.55(m, IH), 4.10(m, 2H>, MS (ES+) m/e 350 (MH+).
  • 35
  • [ 1011483-30-9 ]
  • [ 3963-62-0 ]
  • [ 1228236-22-3 ]
YieldReaction ConditionsOperation in experiment
With N-ethyl-N,N-diisopropylamine In tetrahydrofuran at 35℃; for 72h; b A mixture comprising {1-[(1 S,4R)4-(2l6-dichloro-purin-9-yl)-cyclopent-2-enyl]-1 H- pyrazol-4-yl}-methanol (0.675 g, 1.92 mmol), diphenylethylamine (0.398 g, 2.02 mmol) and DIPEA (0.298 g, 2.31 mmol) in dry THF (20 mL) is stirred at 35°C for 3 days. The solvent is removed in vacuo and the resulting crude residue is partitioned between DCM and 0.1 M HCI. The organic portion is separated, washed with water, brine, dried (MgSO4) and concentrated in vacuo to afford the title product.
With N-ethyl-N,N-diisopropylamine In tetrahydrofuran at 35 - 50℃;
  • 36
  • [ 4695-13-0 ]
  • [ 3963-62-0 ]
YieldReaction ConditionsOperation in experiment
91% With lithium aluminium tetrahydride In diethyl ether at 20℃; for 4h; 2,2-diphenylethylamine (S6) LiAlH4 (6 g) was suspended in 120 mL of dry Et2O at RT. Solid 2,2-diphenylacetamide (10 g) was addedfor 1 h to the stirred suspension. The mixture was stirred for a night at RT, and then 15% NaOH and waterwere added. The mixture was stirred for several minutes and filtered, and the clear filtrate was dried(Na2SO4). The solvent was evaporated to give 8.5g (91%) of a yellow liquid which was used withoutfurther purification.S6: 1H NMR (400.1 MHz, CDCl3) δH: 7.41-7.22 (m, 10H, 2*Ph), 4.03 (t, 1H, CH, 8 Hz), 3.36 (d, 2H,CH2, 8 Hz), 1.76 (br s, 2H).
Multi-step reaction with 2 steps 1: thionyl chloride 2: Raney nickel; ethanol; liquid ammonia / 100 °C / 117681 Torr / Hydrogenation
Multi-step reaction with 2 steps 1: phosphorus pentachloride; phosphorus oxychloride 2: nickel; alcohol; acetic acid ester / Hydrogenation.Reagens: Wasser
  • 37
  • [ 610319-00-1 ]
  • [ 3963-62-0 ]
  • [ 1193686-57-5 ]
YieldReaction ConditionsOperation in experiment
63% With potassium carbonate In acetonitrile for 48h; Heating / reflux; 45.c (R)-2-(3-{3-[(2, 2-diphenylethyl) amino]-3-methyl-propoxy}-phenyl) acetic acid methyl ester To a stirring solution OF 2, 2-DIPHENETHYLAMINE (151 mg, 0.765 MMOL) and (S)- {3- [3-(TOLUENE-4-SULFONYLOXY)-BUTOXY]-PHENYL}-ACETIC acid methyl ester (300 mg, 0.765 MMOL) in acetonitrile (5 mL) was treated with solid K2CO3 (317 mg, 2.30 MMOL). The reaction was heated to reflux and stirred for 48 hours. Upon cooling to room temperature, the reaction mixture was filtered, washed with acetonitrile, and the filtrate was concentrated. The crude product was purified by column chromatography over silica gel (silica gel 60, EM Science) using 50% EtOAc: hexane as eluent to afford 200 mg (63% yield) of the title compound as an oil : MS (ESI) 418.2 (M+H+).
With potassium carbonate In acetonitrile Reflux;
  • 38
  • [ 3963-62-0 ]
  • [ 93118-03-7 ]
  • [ 405911-35-5 ]
YieldReaction ConditionsOperation in experiment
76% c) N- (2, 2-Diphenylethyl)-N- (2-chloro-3-trifluoromethyl-benzyl) amine ; To a stirring solution of 2, 2-diphenethylamine (2.0 g, 0.010 mole) and 2- chloro-3-trifluoromethylbenzaldehyde (2.33 g, 0.011 mole) in dichloromethane (20 mL) was added sodium triacetoxyborohydride (2.36 g, 0.011 mole) and acetic acid (2.0 mL). The reaction mixture was stirred overnight. Solvent was removed, the residue was washed with saturated NaHCO3, and extracted three times with EtOAc. The organic extracts were dried over Na2SO4, filtered, and concentrated. The crude mixture was subjected to column chromatography over silica gel (silica gel 60, EM Science) using 30% EtOAc: hexane as eluent to afford 3.0 g (76% yield) of the title compound as a yellow oil : MS (ESI) 390.0 (M+H+).
76% With sodium tris(acetoxy)borohydride; acetic acid; In dichloromethane; To a stirring solution of 2, 2-diphenethylamine (2.0 g, 0.010 mole) and 2-CHLORO- 3-TRIFLUOROMETHYLBENZALDEHYDE (2.33 g, 0.011 mole) in dichloromethane (20 mL) was added sodium triacetoxyborohydride (2.36 g, 0.011 mole) and acetic acid (2.0 mL). The reaction mixture was stirred overnight. Solvent was removed, the residue was washed with saturated NAHCO3, and extracted three times with EtOAc. The organic extracts were dried over NA2SO4, filtered, and concentrated. The crude mixture was subjected to column chromatography over silica gel (silica gel 60, EM Science) using 30% EtOAc: hexane as eluent to afford 3.0 g (76% yield) of the title compound as a yellow oil : MS (ESI) 390.0 (M+H+).
76% With acetic acid; In dichloromethane; To a stirring solution of 2, 2-diphenethylamine (2.0 g, 0.010 mole) and 2-chloro- 3-TRIFLUOROMETHYLBENZALDEHYDE (2.33 g, 0.011 mole) in dichloromethane (20mL) was added sodium triacetoxyborohydride (2.36 g, 0.011 mole) and acetic acid (2.0 mL). The reaction mixture was stirred overnight. The solvent was removed and the residue was dissolved in ethyl acetate. The ethyl acetate solution was washed with saturated NaHCO3, the ethyl acetate extracts were dried over NA2SO4, filtered, and concentrated. The crude product was subjected to column chromatography over silica gel (silica gel 60, EM Science) using 30% ethyl acetate: hexane as eluent to afford 3.0 g (76% yield) of the title compound as a yellow oil : MS (ESI) 390.0 (M+H+).
76% With sodium tris(acetoxy)borohydride; acetic acid; In dichloromethane; To a solution of 2, 2-diphenethylamine (2. 0 g, 10.0 mmole) and 2-chloro-3- TRIFLUOROMETHYLBENZALDEHYDE (2.33 g, 11.0 mmole) in CH2CI2 (20 mL) was added sodium triacetoxyborohydride (2.36 g, 11.0 mmole) and ACOH (2.0 mL). The reaction mixture was stirred overnight. Solvent was removed, the residue was washed with saturated NAHCO3, and extracted three times with EtOAc. The organic extracts were dried over NA2SO4, filtered, and concentrated. The crude mixture was subjected to column chromatography over silica gel (silica gel 60, EM Science) using 30% EtOAc: hexane as eluent to afford the title compound as a yellow oil (3.0 g, 76% yield) : MS (ES) m/e 390. 0 [M+H] +
76% With sodium tris(acetoxy)borohydride; acetic acid; In dichloromethane;Product distribution / selectivity; Example 1 (4- {3- [ (2-CHLORO-3-TRIFLUOROMETHYL-BENZYL)-2, 2-DIPHENYLETHYL-AMINO]-METHYL-PROPOXY)- indol-1-yl) acetic acid hydrochloride salt a) [2-CHLORO-3-TRIFLUOROMETHYL-BENZYL] (2, 2-diphenylethyl) amine) To a solution of 2, 2-DIPHENETHYLAMINE (2.0 g, 10.0 mmole) and 2-chloro-3- trifluoromethylbenzaldehyde (2.33 G, 11.0 mmole) in CH2CI2 (20 mL) was added sodium triacetoxyborohydride (2.36 g, 11.0 mmole) and ACOH (2.0 mL). The reaction mixture was stirred overnight. Solvent was removed, the residue was washed with saturated NAHC03, and extracted three times with EtOAc. The organic extracts were dried over NA2SO4, filtered, and concentrated. The crude mixture was subjected to column chromatography over silica gel (silica gel 60, EM Science) using 30% EtOAc: hexane as eluent to afford the title compound as a yellow oil (3.0 G, 76% yield)a) [2-CHLORO-3- (TRIFLUOROMETHYL) BENZYL] (2, 2-diphenylethyl) amine) To a solution of 2, 2-diphenethylamine (2.0 g, 10.0 mmole) and 2-chloro-3- trifluoromethylbenzaldehyde (2.33 G, 11.0 mmole) in CH2CI2 (20 mL) was added sodium triacetoxyborohydride (2.36 G, 11.0 mmole) and ACOH (2.0 mL). The reaction mixture was stirred overnight. Solvent was removed, the residue was washed with saturated NAHC03, and extracted three times with EtOAc. The organic extracts were dried over NA2SO4, filtered, and concentrated. The crude mixture was subjected to column chromatography over silica gel (silica gel 60, EM Science) using 30% EtOAc: hexane as eluent to afford the title compound as a yellow oil (3.0 g, 76% yield)
76% With sodium tris(acetoxy)borohydride; acetic acid; In dichloromethane; at 20℃; for 1.5h; b) (2-Chloro-3-trifluoromethyl-benzyl)-diphenylethyl-amine To a SOLUTION OF 2, 2-DIPHENYL-ETHYLAMINE (1.14g, 5.7 MMOL) in dry dichloromethane (300 ml) was added acetic acid followed by 2-chloro-3- TRIFLUOROMETHYLBENZALDEHYDE (1. 0g, 4.8 MMOL) and sodium triacetoxyborohydride (2.03g, 9.6 MMOL). After the resulting mixture was stirred for 1.5h at room temperature water was added to quench the reaction. The aqueous layer was extracted with ethyl acetate. The combined organic layers were washed with brine, dried over sodium sulfate, and concentrated in vacuo. The crude mixture was purified by silica gel column chromatograph (EtOAc: Hexane/25: 75) to give the title compound as an oil 1. 7G. (yield 76%).
57% EXAMPLE 23 N-[2-Chloro-3-(trifluoromethyl)benzyl]-N-(2,2-diphenylethyl)amine The title compound was prepared in 57% yield from 2,2-diphenethylamine and <strong>[93118-03-7]2-chloro-3-trifluoromethylbenzaldehyde</strong> as in Example 22: 1H NMR (CDCl3, 400 MHz) delta 7.57 (d, 1H, J=8.0), 7.52 (d, 1H, J=7.6), 7.32-7.15 (m, 11H), 4.20 (t, 1H, J=7.6), 3.94 (s, 2H), 3.22 (d, 2H. J=7.6); HPLC (Waters symmetry shield, RPq 3.5 micron, 2.1*30 mm, 85:15/H2O:CH3CN with 0.1% HCOOH to 100% CH3CN after 4 min, flow rate=0.8 mL/min) tR=2.39 min; MS (ESP+) m/e 390 (MH+); TLC (hexanes:EtOAc/4:1) Rf=0.42.
57% A solution of 2, 2-diphenethylamine (10.0 g, 50.7 MMOL) and 2-chloro-3- TRIFLUOROMETHYLBENZALDEHYDE (10.5 g, 50.7 MMOL) in 80 mL of methanol and 40 mL of trimethylorthoformate was stirred at room temperature for 15 hours whereupon polymer-supported borohydride resin (20.3 g, 55.8 mmol, 2.5 mmol/g, ALDRICH) was added in one portion. After stirring at room temperature for 24 h, the reaction was filtered and the filtrate was concentrated in vacuo. The crude product was purified by column chromatography over silica gel (silica gel 60, EM Science) using EtOAc: hexane/40: 60 with 1 % NH40H as the eluent to give 11.2 g (57% yield) of the title compound as an oil :'H NMR (CDCI3, 400 MHz) 8 7.57 (d, 1 H, J = 8.0), 7.52 (d, 1 H, J = 7.6), 7.32-7. 15 (m, 11 H), 4.20 (t, 1 H, J = 7.6), 3.94 (s, 2 H), 3.22 (d, 2 H, J = 7.6) ; HPLC (Waters symmetry shield, RPq 3. 5 micron, 2.1 x 30 mm, 85: 15/H20: CH3CN with 0. 1% HCOOH to 100% CH3CN after4 min, flow rate = 0. 8 mL/min) tR=2.39 min; MS (ESP+) M/E 390 (MH+) ; TLC (hexanes: EtOAc/4: 1) Rf = 0. 42
With sodium tris(acetoxy)borohydride; acetic acid; In dichloromethane; Step 1: Synthesis of INT-01 INT-01 Intermediate INT-01 was made as previously described in Bioorg. Med. Chem. Lett. 2009, 19, 5617-5621 . 2,2-Diphenethylamine and <strong>[93118-03-7]2-chloro-3-trifluoromethylbenzaldehyde</strong> were reacted via reductive amination using sodium triacetoxyborohydride in dichloromethane and acetic acid. The resulting benzyl amine was reacted with 1 ,3-dibromopropane in refluxing acetonitrile overnight to afford bromide (3- bromopropyl)([2-chloro-3-(trifluoromethyl)phenyl]methyl})(2,2-diphenylethyl)amine (INT-01 ).
With sodium tris(acetoxy)borohydride; acetic acid; In dichloromethane; Step 1: Synthesis of INT-01 Intermediate INT-01 was made as previously described in Bioorg. Med. Chem. Lett. 2009, 19, 5617-5621. 2,2-Diphenethylamine and <strong>[93118-03-7]2-chloro-3-trifluoromethylbenzaldehyde</strong> were reacted via reductive amination using sodium triacetoxyborohydride in dichloromethane and acetic acid. The resulting benzyl amine was reacted with 1,3-dibromopropane in refluxing acetonitrile overnight to afford bromide (3-bromopropyl)([2-chloro-3-(trifluoromethyl)phenyl]methyl})(2,2-diphenylethyDamine (INT-01).

  • 39
  • [ 3114-70-3 ]
  • [ 3963-62-0 ]
  • (2R,3R,4S,5R)-2-[2-(trans-4-Amino-cyclohexylamino)-6-(2,2-diphenyl-ethylamino)-purin-9-yl]-5-(2-methyl-2H-tetrazol-5-yl)-tetrahydro-furan-3,4-diol Diformate [ No CAS ]
YieldReaction ConditionsOperation in experiment
Example 93 (2R,3R,4S,5R)-2-[2-(trans-4-Amino-cyclohexylamino)-6-(2,2-diphenyl-ethylamino)-purin-9-yl]-5-(2-methyl-2H-tetrazol-5-yl)-tetrahydro-furan-3,4-diol Diformate Example 93 was prepared in an analogous manner to Example 24 using a sealed vial (Reactivial) with 2,2-diphenylethylamine (0.005 g, 0.025 mmol) at 20 C. for 48 h. and using neat trans 1,4-diaminocyclohexane (0.029, 0.25 mmol) at 100 C. for 90 h. The title compound was afforded after freeze drying as a brown solid (0.012 mg). LC/MS SYSTEM A Rt=3.69 min; LC/MS SYSTEM A m/z 612 (MH+)
  • 40
  • [ 3963-62-0 ]
  • [ 79286-79-6 ]
  • (2R,3R,4S,5R)-2-[6-(2,2-Diphenyl-ethylamino)-2-(pyrrolidin-3R-ylamino)-purin-9-yl]-5-(2-methyl-2H-tetrazol-5-yl)-tetrahydro-furan-3,4-diol Diformate [ No CAS ]
YieldReaction ConditionsOperation in experiment
Example 94 (2R,3R,4S,5R)-2-[6-(2,2-Diphenyl-ethylamino)-2-(pyrrolidin-3R-ylamino)-purin-9-yl]-5-(2-methyl-2H-tetrazol-5-yl)-tetrahydro-furan-3,4-diol Diformate Example 94 was prepared in an analogous manner to Example 24 using a Reactivial with 2,2-diphenylethylamine (0.005 g, 0.025 mmol) at 20 C. for 48 h. and using neat pyrrolidin-3R-ylamine (0.022 g, 0.25 mmol) at 100 C. for 90 h. The title compound was afforded after freeze drying as a brown solid (0.002 mg). LC/MS SYSTEM A Rt=3.73 min; LC/MS SYSTEM A m/z 584 (MH+)
  • 41
  • [ 105381-44-0 ]
  • Glauber's salt [ No CAS ]
  • [ 3963-62-0 ]
YieldReaction ConditionsOperation in experiment
84% With LiAlH4 In tetrahydrofuran 169.2 Step 2. Step 2. 2,2-Diphenylethylamine (53). To a solution of oxime 52 (4.0 g, 18.9 mmol) in THF (50 mL) was added LiAlH4 (1.0 M solution in THF, 28.3 mL, 28.3 mmol) at 0° C. and the mixture was stirred at room temperature for 4 hours. Sodium sulfate decahydrate was added and the reaction was stirred for an additional hour. The solids were filtered and the filtrate was concentrated under reduced pressure to give 53 (3.14 g, 84%) as a yellow oil.
  • 42
  • [ 3663-80-7 ]
  • [ 3963-62-0 ]
  • [ 1052063-15-6 ]
YieldReaction ConditionsOperation in experiment
91% With benzotriazol-1-ol; N-(3-dimethylaminopropyl)-N-ethylcarbodiimide; In N,N-dimethyl-formamide; at 20℃; for 16h; To a solution of 1 ,4-benzodioxan-2-carboxylic acid (0.216 g, 1.2 mmol) in N, N- dimethylformamide (5.0 mL) were added 2,2-diphenylethanamine (0.197 g, 1.0 mmol), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (0.186 g, 1.2 mmol) and 1- hydroxybenzotriazole (0.162 g, 1.2 mmol). The resulting mixture was stirred at ambient temperature for 16 h. To the above mixture was added ethyl acetate (100 ml_), the resultant solution was washed with 2 N citric acid (50 ml_), saturated sodium bicarbonate (50 ml_) and brine (50 ml_). The organic layer was dried over anhydrous sodium sulfate, then filtered and concentrated to give the crude product. The crude product was recrystalized from ether and hexane to yield lambda/-(2,2-diphenylethyl)-2,3- dihydro-1 ,4-benzodioxine-2-carboxamide (0.326 g, 91percent) as a colorless solid: 1H NMR (300 MHz, CDCI3) 5 7.33-7.11 (m, 10H), 6.89-6.68 (m, 4H), 6.49 (s, 1 H), 4.59 (dd, J = 6.6, 2.7 Hz, 1 H), 4.39 (dd, J = 11.3, 2.7 Hz, 1 H), 4.17-3.97 (m, 3H), 3.90-3.78 (m, 1H); 13C NMR (75 MHz, CDCI3) delta 167.1 , 143.2, 141.4, 141.3, 128.7, 128.7, 128.0, 127.9, 126.9, 122.2, 121.9, 117.6, 117.0, 73.2, 65.0, 50.5, 43.2; MS (ES+) m/z 382.1 (M + 23), 360.1 (M + 1 ).
  • 43
  • [ 3963-62-0 ]
  • [ 228579-12-2 ]
  • [ 1106977-81-4 ]
YieldReaction ConditionsOperation in experiment
96% In dimethyl sulfoxide at 20℃; for 18h; 6; 4 A solution of [3-(3-bromo-propoxy)-phenyl]-acetic acid methyl ester (2) (2.0 g, 0.007 mol) and 2,2-diphenylethylamine (2.5 g, 0.013 mol) in DMSO (5 mL) was stirred at room temperature for 18 hours. The reaction mixture was diluted with water (30 mL) and extracted with EtOAc (3×25 mL). The combined organic extracts were washed with brine (15 mL), dried over Na2SO4, concentrated to an oil, which was purified by flash chromatography (9:1 CH2Cl2/MeOH) to give the desired product as oil 2.72 g in 96% yield. 1H NMR (CDCl3) δ 7.24 (m, 7H), 7.19 (t, 3H), 6.85 (d, 1H), 6.74 (s, 1H), 6.72 (d, 2H), 5.26 (s, 1H), 4.22 (t, 1H), 3.96 (t, 2H), 3.68 (s, 3H), 3.57 (d, 2H), 3.26 (d, 2H), 2.84 (t, 2H), 1.92 (m, 2H). 13C NMR (CDCl3) δ 173.3, 160.5, 144.4, 136.7, 130.9, 130.1, 129.5, 129.4, 127.9, 122.9, 116.9, 114.6, 67.6, 56.0, 53.5, 52.6, 48.3, 42.6, 31.0.
  • 44
  • [ 3963-62-0 ]
  • [ 221136-66-9 ]
  • C23H25N3O3 [ No CAS ]
  • 45
  • [ 1187487-23-5 ]
  • [ 3963-62-0 ]
  • [ 125238-99-5 ]
  • [ 1185653-49-9 ]
YieldReaction ConditionsOperation in experiment
31% Example 17 - Synthesis of Compound 16 (S)-9-fluorenylmethyl 10-(2,2-diphenylethyl)- 2,2-dimethyl-18-phenyl-4,9,13,16-tetraoxo-3,17-dioxa-5,10,15-triazaoctadecan-8- ylcarbamate16(S)-9-fluorenylmethyl 10-(2,2-diphenylethyl)-2,2-dimethyl-18- phenyl-4,9,13,16-tetraoxo-3,17-dioxa-5,10,15-triazaoctadecan-8- ylcarbamateTo 2,2-diphenylethylamine (0.95 g, 7.4 mmol) in DCM (10 mL) was added the alphabeta- unsaturated ketone 15 (5.7 mmol) in DCM (75 mL). After stirring at room temperature for 15 mins, Fmoc-L-2,4-diaminobutyric acid(Boc)-OH (2.4 g, 8.55 mmol) and DIC (0.87 mL, 5.6 mmol) were added. The reaction was stirred at room temperature overnight. The DCM was removed by rotary evaporation and the residue was subjected to column chromatography on silica gel using petroleum spirit:EtOAc (1 :1 to 0:1 ) to give 16 (1.5 g, 31percent) Alternatively, to 2,2-diphenylethylamine (0.97 g, 7.4 mmol) in DCM (20 mL) was added the alpha,beta -unsaturated ketone 15 (5.95 mmol) in DCM (4OmL). After stirring at room temperature for 15 mins, Fmoc-L-2,4-diaminobutyric acid(Boc)-OH (2.4 g, 8.55 mmol), DIPEA (2.5 mL) and HATU (2.3 g, 6.0 mmol) were added. The reaction was stirred at room temperature overnight. The DCM was removed by rotary evaporation and the residue was taken up in EtOAc (100 mL). The organic layer was washed with saturated sodium bicarbonate solution (2x 100 mL), saturated ammonium chloride solution (2x 100 mL) and brine (2x 100 mL). The organic phase was dried and the solvent removed under reduced pressure. The residue was subjected to column chromatography on silica gel using petroleum spirit:EtOAc (3:1 to 1 :1 to 0:1 ) to give 16 (0.86 g, 17percent).
31% To 2,2-diphenylethylamine (0.95 g, 7.4 mmol) in DCM (10 ml.) was added the alphabeta- unsaturated ketone 15 (5.7 mmol) in DCM (75 ml_). After stirring at room temperature for 15 mins, Fmoc-L-2,4-diaminobutyric acid(Boc)-OH (2.4 g, 8.55 mmol) and DIC (0.87 ml_, 5.6 mmol) were added. The reaction was stirred at room temperature overnight. The DCM was removed by rotary evaporation and the residue was subjected to column chromatography on silica gel using petroleum spirit:EtOAc (1 :1 to 0:1 ) to give 16 (1.5 g, 31percent)
31% To 2,2-diphenylethylamine (0.95 g, 7.4 mmol) in DCM (10 mL) was added the alpha,beta-unsaturated ketone 15 (5.7 mmol) in DCM (75 mL).After stirring at room temperature for 15 mins, Fmoc-L-2,4-diaminobutyric acid(Boc)-OH (2.4 g, 8.55 mmol) and DIC (0.87 mL, 5.6 mmol) were added.The reaction was stirred at room temperature overnight.The DCM was removed by rotary evaporation and the residue was subjected to column chromatography on silica gel using petroleum spirit:EtOAc (1:1 to 0:1) to give 16 (1.5 g, 31percent)_
  • 46
  • [ 108-75-8 ]
  • [ 3963-62-0 ]
  • [ 149794-10-5 ]
  • [ 1172579-70-2 ]
  • (R)-tert-butyl 1-(2,2-diphenylethylamino)-3-methyl-3-(methylthio)-1-oxobutan-2-ylcarbamate [ No CAS ]
YieldReaction ConditionsOperation in experiment
46% In dichloromethane; ethyl acetate; Example 27 (R)-tert-butyl 1-(2,2-diphenylethylamino)-3-methyl-3-(methylthio)-1-oxobutan-2-ylcarbamate To a solution of a (105 mg, 0.24 mmol), 2,2-diphenylethylamine b (44 mg, 0.22 mmol), and 2,4,6-collidine (64 muL, 0.48 mmol) in dichloromethane (3 mL) at 0 C. was added PyOAP (125 mg, 0.24 mmol) in one portion. The reaction was allowed to warm to r.t. overnight. The reaction mixture was poured into a separatory funnel containing EtOAc (15 mL) and washed with 10% citric acid (15 mL), saturated NaHCO3 (15 mL), and brine (15 mL). The combined aqueous layers was extracted with EtOAc (3*10 mL) and the combined organic layers was dried over MgSO4, filtered, and concentrated in vacuo. ISCO chromatography (0 to 100% hexanes/EtOAc, slow gradient) gave 50 mg of c (46% yield) as a white solid. LCMS analysis confirmed the identity of the desired product (MW=422.4, found M+H+=443.6).
  • 47
  • [ 50-00-0 ]
  • [ 931-53-3 ]
  • [ 4648-54-8 ]
  • [ 3963-62-0 ]
  • [ 1340483-82-0 ]
YieldReaction ConditionsOperation in experiment
92% In methanol at 80℃; for 1.5h; Inert atmosphere; Microwave irradiation; Sealed tube; 4.1.2.1. General procedure 1 (GP1) General procedure: To a solution of paraformaldehyde (1.0 mmol) in MeOH (10.0 mL) the respective amine (1.0 or 2.0 mmol), the isocyanide (1.0 mmol) and TMSN3 (1.0 mmol) were added. The resulting solution was stirred at 80 °C in the microwave for 1.5 h. After addition of phosphate buffer solution (1 M, pH 7) and water (approx. 10 mL each) the crude product was extracted with CH2Cl2 (5 × approx. 20 mL). The combined organic layers were dried (Na2SO4) and the solvent was removed in vacuo. Further purification of the tetrazole product was performed as specified.
  • 48
  • [ 50-00-0 ]
  • [ 4648-54-8 ]
  • [ 14542-93-9 ]
  • [ 3963-62-0 ]
  • [ 1340483-81-9 ]
YieldReaction ConditionsOperation in experiment
94% In methanol at 80℃; for 1.5h; Inert atmosphere; Microwave irradiation; Sealed tube; 4.1.2.1. General procedure 1 (GP1) General procedure: To a solution of paraformaldehyde (1.0 mmol) in MeOH (10.0 mL) the respective amine (1.0 or 2.0 mmol), the isocyanide (1.0 mmol) and TMSN3 (1.0 mmol) were added. The resulting solution was stirred at 80 °C in the microwave for 1.5 h. After addition of phosphate buffer solution (1 M, pH 7) and water (approx. 10 mL each) the crude product was extracted with CH2Cl2 (5 × approx. 20 mL). The combined organic layers were dried (Na2SO4) and the solvent was removed in vacuo. Further purification of the tetrazole product was performed as specified.
  • 49
  • [ 50-00-0 ]
  • [ 4648-54-8 ]
  • [ 10340-91-7 ]
  • [ 3963-62-0 ]
  • [ 1340483-83-1 ]
YieldReaction ConditionsOperation in experiment
86% In methanol at 80℃; for 1.5h; Inert atmosphere; Microwave irradiation; Sealed tube; 4.1.2.1. General procedure 1 (GP1) General procedure: To a solution of paraformaldehyde (1.0 mmol) in MeOH (10.0 mL) the respective amine (1.0 or 2.0 mmol), the isocyanide (1.0 mmol) and TMSN3 (1.0 mmol) were added. The resulting solution was stirred at 80 °C in the microwave for 1.5 h. After addition of phosphate buffer solution (1 M, pH 7) and water (approx. 10 mL each) the crude product was extracted with CH2Cl2 (5 × approx. 20 mL). The combined organic layers were dried (Na2SO4) and the solvent was removed in vacuo. Further purification of the tetrazole product was performed as specified.
  • 50
  • [ 824426-35-9 ]
  • [ 3963-62-0 ]
  • SH-116 [ No CAS ]
YieldReaction ConditionsOperation in experiment
64% With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 12h; 4.2.36. N-(2,2-Diphenylethyl)-2-[3-fluoro-4-(methylsulfonylamino)phenyl]propionamide (48) General procedure: A mixture of acid (10 mmol), amine (12 mmol) and 1-(3-dimethylaminopropyl)-3-ethyl-carbodiimide hydrochloride (12 mmol) in CH2Cl2 (20 mL) was stirred for 12 h at room temperature. The reaction mixture was filtered off and the filtrate was concentrated. The residue was purified by flash column chromatography on silica gel using EtOAc-hexanes as eluant.
  • 51
  • [ 1003-31-2 ]
  • [ 3963-62-0 ]
  • [ 1390632-61-7 ]
  • 52
  • [ 1003-31-2 ]
  • [ 3963-62-0 ]
  • [ 1390632-94-6 ]
  • 53
  • [ 463-71-8 ]
  • [ 3963-62-0 ]
  • [ 34634-22-5 ]
YieldReaction ConditionsOperation in experiment
98% With sodium hydrogencarbonate In dichloromethane at 20℃; for 0.5h; 4.2.5. General procedure for the synthesis of the isothiocyanates 83-88 General procedure: A solution of the respective amine (14e16 or 31e33, 1 equiv) inDCM was added to a saturated solution of NaHCO3 at rt. Subsequently,thiophosgene (1.1 equiv) was added dropwise and thereaction was stirred vigorously for 30 min at rt. The organic layerwas washed with H2O, brine and dried over Na2SO4. The solvent was removed under reduced pressure and the crude product waspurified with column chromatography (EtOAc/PE 5/95).
  • 54
  • [ 35302-72-8 ]
  • [ 3963-62-0 ]
  • [ 1326285-42-0 ]
YieldReaction ConditionsOperation in experiment
67% With triethylamine In acetonitrile at 60℃; for 24h; General procedure 1 General procedure: 2,2,2-Trichloro-1-(1H-pyrrol-2-yl)ethanone (2) (0.200 g, 0.94 mmol) and benzylamine (0.101 g, 0.11 mL, 0.94 mmol) were dissolved in acetonitrile (15.0 mL). Triethylamine (5 equiv, 0.65 mL) was added to the solution, and the reaction mixture stirred at 60 °C for 24 h. Solvent was removed from the reaction by rotary evaporation. The resulting yellow oil was purified using 5% MeOH/CH2Cl2 to afford N-benzyl-1H-pyrrole-2-carboxamide (0.123 g, 65%) as a white solid, mp 128-130 °C.
  • 55
  • [ 50371-52-3 ]
  • [ 3963-62-0 ]
  • [ 1569312-52-2 ]
YieldReaction ConditionsOperation in experiment
48% With triethylamine In acetonitrile at 60℃; for 24h; General procedure 2 General procedure: 2,2,2-Trichloro-1-(4,5-dibromo-1H-pyrrol-2-yl)ethanone (3) (0.200 g, 0.54 mmol), and phenylmethanamine (0.058 g, 0.06 mL, 0.54 mmol) were dissolved in acetonitrile (10.0 mL). Triethylamine (5 equiv, 0.38 mL) was added to the solution, and the reaction mixture stirred at 60 °C for 24 h. Solvent was removed from the reaction by rotary evaporation. The resulting yellow oil was purified using column chromatography from 2% MeOH/CH2Cl2 to afford N-benzyl-4,5-dibromo-1H-pyrrole-2-carboxamide (0.0978 g, 51%) as a brown solid, decomp. 125 °C.
  • 56
  • [ 3963-62-0 ]
  • 4-nitro-N'-(4-(trifluoromethoxy)phenyl)benzohydrazonoyl chloride [ No CAS ]
  • [ 1181214-76-5 ]
YieldReaction ConditionsOperation in experiment
50% Stage #1: 2,2-Diphenylethylamine; 4-nitro-N'-(4-(trifluoromethoxy)phenyl)benzohydrazonoyl chloride With triethylamine In acetonitrile Stage #2: With sodium hypochlorite In acetonitrile at 20℃; for 24h; 11 Preparation of 3-(4-Nitrophenyl)-1-(4-(trifluoromethoxy)-phenyl)-1H-1,2,4-triazole [0108] To a magnetically stirred solution of 4-nitro-N′-(4-(trifluoromethoxy)-phenyl)benzohydrazonoyl chloride (100 mg, 0.278 mmoL) in MeCN (1.4 mL) was added 2,2-diphenylethyl amine (60 mg, 0.306 mmoL) followed by TEA (43 μL, 0.306 mmoL) and the reaction mixture was stirred overnight to give the crude triazene. The solvent was concentrated under reduced pressure. The residue was dissolved in fresh MeCN (1.4 mL) and NaOCl solution (15% Aldrich, 1.3 mL) and the reaction was stirred at room temperature for 24 h. The mixture was diluted with EtOAc and washed with water. The organic layer was filtered, dried over MgSO4 and concentrated. The residue was purified via radial chromatography using a 50% EtOAc/hexane as eluent. The title compound was isolated from the fraction at Rf=0.20 (48 mg, 50%).
  • 57
  • [ 3963-62-0 ]
  • methyl 4-(chloro(2-(4-(trifluoromethoxy)phenyl)hydrazono)methyl)benzoate [ No CAS ]
  • methyl 4-(1-(4-(trifluoromethoxy)phenyl)-1H-1,2,4-triazol-3-yl)benzoate [ No CAS ]
YieldReaction ConditionsOperation in experiment
43% Stage #1: 2,2-Diphenylethylamine; methyl 4-(chloro(2-(4-(trifluoromethoxy)phenyl)hydrazono)methyl)benzoate With triethylamine In acetonitrile Stage #2: With silver carbonate In acetonitrile at 20℃; for 5h; 3 Preparation of Methyl 4-(1-(4-(trifluoromethoxy)phenyl)-1H-1,2,4-triazol-3-yl)benzoate [0090] To a magnetically stirred solution of methyl 4-(chloro(2-(4-(trifluoro-methoxy)phenyl)hydrazono)methyl)benzoate (150 mg, 0.402 mmoL) in MeCN (2 mL) was added 2,2-diphenylethyl amine (87 mg; 0.443 mmoL) followed by TEA (62 μL, 0.443 mmoL) and the reaction mixture was stirred overnight to give the crude triazene. The solvent was concentrated under reduced pressure. The residue was dissolved in fresh MeCN (2 mL) and Ag2CO3 (166 mg, 0.604 mmoL) was added and the reaction was stirred at room temperature for 5 h. The solvent was evaporated and the residue taken up in 2:1 EtOAc/hexane. The mixture was filtered followed by purification via radial chromatography using a 2:1 EtOAc/hexane mixture as the eluent. The title compound was isolated from the fraction at Rf=0.35 (63 mg, 43%): mp 165-168° C.; 1H NMR (400 MHz, CDCl3) δ 8.60 (s, 1H), 8.28 (d, J=8.7 Hz, 2H), 8.15 (d, J=8.7 Hz, 2H), 7.82 (d, J=9.1 Hz, 2H), 7.40 (d, J=9.0 Hz, 2H), 3.96 (s, 3H); 19F NMR (376 MHz, CDCl3) δ -58.01; 13C NMR (101 MHz, CDCl3) δ 166.76, 162.61, 148.55, 141.77, 135.41, 134.46, 131.03, 130.02, 126.46 122.44, 121.66, 121.31, 119.10; GCMS m/z 363 [M+].
  • 58
  • [ 3963-62-0 ]
  • [ 52771-21-8 ]
  • (2,2-diphenylethyl)([3-(trifluoromethoxy)-phenyl]methyl})amine [ No CAS ]
YieldReaction ConditionsOperation in experiment
65% With sodium tris(acetoxy)borohydride; acetic acid; In dichloromethane; at 20℃; Step 1: Synthesis of INT-38 INT-38 3-(Trifluoromethoxy)benzaldehyde (975 mg, 5.13 mmol) and 2,2-diphenylethylamine (920 mg, 4.66 mmol) were dissolved in dry DCM (10 mL). Subsequent addition of sodium triacetoxyborohydride (988 mg, 4.66 mmol) and acetic acid (1 mL) was followed by stirring at RT overnight or until TLC showed no starting material remained. The reaction mixture was poured into saturated sodium bicarbonate solution (150 mL) and then extracted with EtOAc (3 x 100 mL). The organic layers were dried over magnesium sulfate, filtered, concentrated under reduced pressure, and the residue was purified by silica gel chromatography (MeOH/DCM/7N ammonium hydroxide) to afford the desired (2,2-diphenylethyl)([3- (trifluoromethoxy)-phenyl]methyl})amine (INT-38) as a viscous oil (1 .13 g, 65% yield).
65% With sodium tris(acetoxy)borohydride; acetic acid; In dichloromethane; at 20℃; Step 1: Synthesis of INT-38 3-(Trifluoromethoxy)benzaldehyde (975 mg, 5.13 mmol) and 2,2-diphenylethylamine (920 mg, 4.66 mmol) were dissolved in dry DCM (10 mL). Subsequent addition of sodium triacetoxyborohydride (988 mg, 4.66 mmol) and acetic acid (1 mL) was followed by stirring at RT overnight or until TLC showed no starting material remained. The reaction mixture was poured into saturated sodium bicarbonate solution (150 mL) and then extracted with EtOAc (3*100 mL). The organic layers were dried over magnesium sulfate, filtered, concentrated under reduced pressure, and the residue was purified by silica gel chromatography (MeOH/DCM/7N ammonium hydroxide) to afford the desired (2,2-diphenylethyl)([3-(trifluoromethoxy)-phenyl]methyl})amine (INT-38) as a viscous oil (1.13 g, 65% yield).
  • 59
  • [ 3963-62-0 ]
  • [ 112641-20-0 ]
  • [ 847991-15-5 ]
YieldReaction ConditionsOperation in experiment
83% With sodium tris(acetoxy)borohydride; acetic acid; In dichloromethane; at 20℃; Step 2: Synthesis of INT-44 INT-44 2-2-Diphenylethylamine (500 mg, 2.6 mmol) and <strong>[112641-20-0]2-fluoro-3-trifluoromethylbenzaldehyde</strong> (467 mg, 2.37 mmol) were dissolved in dry DCM (1 1 mL). Sodium triacetoxyborohydride (703 mg, 3.32 mmol) and acetic acid (0.136 mL, 2.37 mmol) were added and the reaction was stirred at RT overnight or until TLC showed consumption of the starting material. The reaction was diluted with EtOAc (100 mL), washed with half-saturated potassium carbonate solution (100 mL), water (100 mL), and the combined aqueous layers were re-extracted with EtOAc (100 mL). The second organic layer was washed with water (100 mL) and the combined organic layers were dried over magnesium sulfate, filtered, concentrated under reduced pressure, and purified by silica gel column chromatography (EtOAc/hexanes = 1/3) to afford (2,2- diphenylethyl)([2-fluoro-3-(trifluoromethyl)phenyl]methyl})amine (INT-44) as a yellow viscous oil (736 mg, 83%).
83% With sodium tris(acetoxy)borohydride; acetic acid; In dichloromethane; at 20℃; Step 2: Synthesis of INT-44 2-2-Diphenylethylamine (500 mg, 2.6 mmol) and <strong>[112641-20-0]2-fluoro-3-trifluoromethylbenzaldehyde</strong> (467 mg, 2.37 mmol) were dissolved in dry DCM (11 mL). Sodium triacetoxyborohydride (703 mg, 3.32 mmol) and acetic acid (0.136 mL, 2.37 mmol) were added and the reaction was stirred at RT overnight or until TLC showed consumption of the starting material. The reaction was diluted with EtOAc (100 mL), washed with half-saturated potassium carbonate solution (100 mL), water (100 mL), and the combined aqueous layers were re-extracted with EtOAc (100 mL). The second organic layer was washed with water (100 mL) and the combined organic layers were dried over magnesium sulfate, filtered, concentrated under reduced pressure, and purified by silica gel column chromatography (EtOAc/hexanes=1/3) to afford (2,2-diphenylethyl)([2-fluoro-3-(trifluoromethyl)phenyl]methyl})amine (INT-44) as a yellow viscous oil (736 mg, 83%).
  • 60
  • [ 3963-62-0 ]
  • [ 112641-20-0 ]
  • (4-{3-[(2,2-diphenylethyl)([2-fluoro-3-(trifluoromethyl)phenyl]methyl})amino]propoxy}-2-fluoro-6-methanesulfonylphenyl)methanol [ No CAS ]
  • 61
  • [ 3963-62-0 ]
  • (2S)-4-[(tert-butyldimethylsilyl)oxy]-butan-2-yl methanesulfonate [ No CAS ]
  • [(2R)-4-[(tert-butyldimethylsilyl)oxy]butan-2-yl](2,2-diphenylethyl)amine [ No CAS ]
YieldReaction ConditionsOperation in experiment
78% With potassium carbonate In acetonitrile at 90℃; for 48h; 17.2 Step 2: Synthesis of INT-22 Step 2: Synthesis of INT-22 Crude INT-21 (1.0 g, 3.54 mmol) and 2,2-diphenylethylamine (770 mg, 3.89 mmol) were dissolved in dry ACN (10 mL), followed by addition of potassium carbonate (2.93 g, 21.2 mmol). The mixture was heated at 90° C. for 48 h until TLC showed very little starting material remaining. The heterogeneous reaction mixture was poured into EtOAc (100 mL) and washed with water (2*100 mL). The combined aqueous layers were extracted with EtOAc (100 mL) and this second organic layer was in turn washed with water (100 mL). The combined organic layers were dried over magnesium sulfate, filtered, and concentrated under reduced pressure. The residue was purified by silica gel chromatography (EtOAc/hexane) to afford [(2R)-4-[(tert-butyldimethylsilyl)oxy]butan-2-yl](2,2-diphenylethyl)amine (INT-22) as a slightly yellowish oil (1.06 g, 78% yield).
1.06 g With potassium carbonate In acetonitrile at 90℃; for 48h; 17.2 Step 2: Synthesis of INT-22 Step 2: Synthesis of INT-22 INT-22 Crude INT-21 (1 .0 g, 3.54 mmol) and 2,2-diphenylethylamine (770 mg, 3.89 mmol) were dissolved in dry ACN (10 mL), followed by addition of potassium carbonate (2.93 g, 21 .2 mmol). The mixture was heated at 90 °C for 48 h until TLC showed very little starting material remaining. The heterogeneous reaction mixture was poured into EtOAc (100 mL) and washed with water (2 x 100 mL). The combined aqueous layers were extracted with EtOAc (100 mL) and this second organic layer was in turn washed with water (100 mL). The combined organic layers were dried over magnesium sulfate, filtered, and concentrated under reduced pressure. The residue was purified by silica gel chromatography (EtOAc/hexane) to afford [(2R)-4-[(ferf-butyldimethylsilyl)oxy]butan-2-yl](2,2-diphenylethyl)amine (INT-22) as a slightly yellowish oil (1 .06 g, 78% yield).
  • 62
  • [ 75-15-0 ]
  • [ 3963-62-0 ]
  • [ 34634-22-5 ]
YieldReaction ConditionsOperation in experiment
97% Stage #1: carbon disulfide; 2,2-Diphenylethylamine With triethylamine In ethanol at 20℃; for 1h; Stage #2: With dmap; di-<i>tert</i>-butyl dicarbonate at 0 - 20℃; for 4h; The synthesis of (2-isothiocyanatoethane-1,1-diyl)dibenzene (SF5) General procedure: The solution of 3-(2-aminoethyl)indole (80.1 mg, 0.5 mmol) in EtOH (1 mL, 0.5 M) was treated with carbon disulfide (114.2 mg, 1.5 mmol) followed by triethylamine (50.6 mg, 0.5 mmol). After stirring at room temperature for 1 hour, Boc2O (109.1 mg, 0.5 mmol) and DMAP (1.8 mg, 0.015 mmol) was added to the reaction mixture at 0 °C. The reaction was stirred at room temperature for 2 hours and leave it additionally 2 hour to remove SCO gas. After the reaction completes, the crude product was extracted with ethyl acetate (50 mL) and purified by silica gel chromatography to afford 3-(2-isothiocyanatoethyl)-1H-indole (89.9 mg, 89%).
  • 63
  • [ 2389-45-9 ]
  • [ 3963-62-0 ]
  • benzyl tert-butyl-{6-[(2,2-diphenylethyl)amino]-6-oxohexane-1,5-diyl}-(S)-dicarbamate [ No CAS ]
YieldReaction ConditionsOperation in experiment
97% Stage #1: Boc-Lys(Z)-OH With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 0℃; for 1h; Stage #2: 2,2-Diphenylethylamine In dichloromethane at 0 - 20℃; General procedure: General procedure 1 (GP1) for amide couplings: Representative experimental procedure for the amide formation using primary amines. To solution of acid (1 eq.) in anhydrous DCM was added N-(3-Dimethylaminopropyl)-N'- ethylcarbodiimide (EDC) hydrochloride (1.1 eq.) at 0 °C and stirred for lh. The primary amine (1.1 eq.) was added to the reaction mixture, and then it was warmed up to room temperature and stirred for 14-18 h. A saturated solution of NaHC03 was added and the aqueous phase was extracted with DCM (3 times). The combined organic extracts were washed with brine, dried over Na2S04, filtered and evaporated in vacuo. The crude mixture was purified by flash column chromatography to afford the compounds 1, 4, 30, 32, 36, 37, 40, 41.
80% With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; Inert atmosphere;
  • 64
  • [ 3963-62-0 ]
  • [ 66845-42-9 ]
  • benzyl tert-butyl-{6-[(2,2-diphenylethyl)amino]-6-oxohexane-1,5-diyl}-(R)-dicarbamate [ No CAS ]
  • 65
  • [ 3963-62-0 ]
  • [ 2419-94-5 ]
  • tert-butyl (1,5-bis((2,2-diphenylethyl)amino)-1,5-dioxopentan-2-yl)carbamate [ No CAS ]
YieldReaction ConditionsOperation in experiment
75% With O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide 11 2.3.11. Synthesis of tert-butyl (1,5-bis((2,2-diphenylethyl)amino)-1,5-dioxopentan-2-yl)carbamate (11) Boc-Glu-OH (9, 100 mg, 0.40 mmol) was dissolved in DMF anhydrous (10 mL) with HBTU (0.32 g, 0.85 mmol). 2,2-Biphenylethylamine (10, 0.17 g, 0.85 mmol) was added followed by DIPEA (207 μL, 1.20 mmol). The reaction was left stirring overnight. The solvent was removed in vacuo, the crude product was redissolved in EtOAc and acetic acid 5% was mixed. The aqueous layer was extracted with EtOAc (4 Χ 20 mL), the organic layers were combined, washed with brine, dried over NaSO4 and the solvent was removed in vacuo. The crude product was redissolved in the minimum quantity of EtOAc and precipitated with hexane. The product was then reprecipitated using DCM/hexane to achieve 11 as a white solid (182 mg, 75% yield). Rf = 0.83 in EtOAc 100%; 1H NMR, δ (500 MHz, CDCl3) 7.31-7.16 (20H, m, Ph), 6.21 (1H, br s, NHCO), 5.89 (1H, br s, NHCO), 5.45 (1H, br s, NH Boc), 4.20-4.13 (2H, 2t, J = 8.05 Hz and J = 8.05 Hz, 2CHPh2), 3.99-3.87 (2H, m, CH2CHPh2), 3.77-3.69 (3H, m, CH2CHPh2 and CH Glu), 2.06-1.89 and 1.88-1.80 (2H, m, CH2CO Glu), 1.77-1.68 (2H, m, CHCH2 Glu), 1.40 (9H, s, C(CH3)). 13C NMR δ (126 MHz, CDCl3) 172.50 (CONH), 171.38 (CONH), 155.78 (OCONH), 141.95, 141.90, 141.84, 141.80, 128.78, 128.72, 128.15, 128.09 and 126.89 (Ph), 79.95 (C(CH3)3), 53.53 (CH Glu), 50.65 (CHPh2), 50.52 (CHPh2), 43.88 (CH2CHPh2), 43.76 (CH2CHPh2), 32.25 (CH2CO Glu), 29.49 (CHCH2 Glu), 28.35 (C(CH3)). ESI-MS m/z, M+H+ = 606.5, calculated for C38H43N3O4 = 605.3.
  • 66
  • [ 607-68-1 ]
  • [ 3963-62-0 ]
  • 2-chloro-N-(2,2-diphenylethyl)quinazolin-4-amine [ No CAS ]
YieldReaction ConditionsOperation in experiment
77% With triethylamine In tetrahydrofuran at 20℃; for 3h; d.1 STEP 1 j00218j To a mixture of 2,4-dichloroquinazoline (1.0 g, 5.02 mmol) and 2,2- diphenylethanamine (1.05 g, 5.5 mmol) in THF (20 mL) was added triethylamine (0.84 mL, 6.02 mmol) and the mixture was stirred at room temperature for 3 hours. The reaction mixture was filtered and the filtrate was concentrated under reduced pressure. The residue obtained was purified by recrystallization from ether to yield 1.38 g (7 7%) of 2-chloro-N- (2,2-diphenylethyl)quinazolin-4-amine. Mp 184-186 °C. TLC Rf 0.39 (EtOAc-Hexane, 75:25). ‘H NMR (400 MHz, DMSO-d6) ö 8.78 (t, J= 5.5 Hz, 1H), 8.13 (ddd, J= 8.6, 1.3, 0.6 Hz, 1H), 7.76 (ddd, J= 8.3, 7.0, 1.2 Hz, 1H), 7.60 (ddd, J 8.3, 1.3, 0.6 Hz, 1H), 7.47 (ddd, J= 8.2, 7.0, 1.2 Hz, 1H), 7.36-7.24 (m, 8H), 7.22-7.15 (m, 3H), 4.60 (t, J= 7.8 Hz, 1H),4.15 (dd, J= 7.8, 5.4 Hz, 2H). MS m/z 360 (M + H). Elemental analysis calculated (%) for C22H,8N3ClH2O: C 69.93, H 5.34, N 11.12. Found: C 72.01, H 4.82, N 11.24.
  • 67
  • [ 26260-02-6 ]
  • [ 3963-62-0 ]
  • N-(2-iodobenzyl)-2,2-diphenylethanamine [ No CAS ]
YieldReaction ConditionsOperation in experiment
80% With sodium tris(acetoxy)borohydride In dichloromethane at 0 - 20℃; for 5h; Inert atmosphere; 4.2.13 N-(2-Iodobenzyl)-2,2-diphenylethanamine (23) To a stirred solution of 2,2-diphenylethan-1-amine (22) (235mg, 1.19mmol, 1.0equiv.) and 2-iodobenzaldehyde (15) (332mg, 1.43mmol, 1.2equiv.) in dry DCM (30.0mL), under nitrogen and at 0°C, was added NaBH(OAc)3 (504mg, 2.38mmol, 2.0equiv.). The reaction mixture was allowed to warm to room temperature, stirred for 5h and quenched with water and saturated aqueous NaHCO3. The aqueous layer was extracted with DCM (3×), and combined the organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude residue was purified by flash chromatography (eluent DCM/MeOH=99/1 to 98/2), yielding 392mg (80%) of desired compound 23. (0068) Rf (DCM/MeOH=95/5)=0.38; 1H NMR (400MHz, CDCl3) δ (ppm)=7.80 (1H, d, H-12, J=7.6Hz), 7.17-7.35 (12H, m, Ar-H), 6.90-6.98 (1H, m, H-15), 4.25 (1H, t, H-2,J=7.6Hz), 3.84 (2H, s, H-7), 3.26 (2H, d, H-1, J=7.6Hz), 1.73 (2H, bs, NH); 13C NMR (101MHz, CDCl3) δ (ppm)=142.9 (C-3), 142.0 (C-8), 139.5 (C-10), 129.9 (C-13), 128.9 (C-11), 128.8 (C-4), 128.4 (C-12), 128.2 (C-5),126.7 (C-6),99.7 (C-9), 58.3 (C-1), 53.8 (C-7), 51.4 (C-2); MS(ESI) m/z=414.0 [M+H]+; HRMS(ESI) m/z=414.0712 [M+H]+, calc.: 414.0713, Diff.: 0.4ppm.
  • 68
  • [ 3963-62-0 ]
  • [ 15486-96-1 ]
  • 3-bromo-N-(2,2-diphenylethyl)propanamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
93% With triethylamine In tetrahydrofuran at 0 - 20℃; for 1h; Inert atmosphere; General procedure (A) for the preparation of 3-bromo-N-substituted- and 3-bromo-N,N-disubstituted propanamide derivatives (1-3) General procedure: To a solution of bromoacetyl chloride (1.40g, 8.17mmol) in10mL of dry THF cooled at 0°C, under argon atmosphere, was added dropwise, under vigorous stirring, a solution of the appropriate amine (5.45mmol) and triethylamine (0.276g, 2.72mmol) in dry THF (10mL). After 30min at 0° and 30min at room temperature the reaction mixture was quenched by the addition of 50ml of H2O and extracted with dichloromethane (3×50ml). The combined organic extracts were washed with saturated NaHCO3 and brine, and then dried over anhydrous Na2SO4. Evaporation under reduced pressure gave the crude 3-bromopropanamide derivatives (1-3) which were purified by flash chromatography on silica gel, using CH2Cl2 and cyclohexane as eluent.
  • 69
  • [ 109-49-9 ]
  • [ 3963-62-0 ]
  • [ 107112-44-7 ]
YieldReaction ConditionsOperation in experiment
94% With palladium(II) trifluoroacetate; oxygen In toluene at 100℃; General procedure for the preparation of pyrroles 3. General procedure: All the reactions were carried out under aerobic atmosphere. To a solution of substrate 5-hexen-2-one 1 (0.6 mmol, 1.2 mmol for the diamines substrates) and amines 2 (0.5 mmol) in toluene (2.0 mL) was added to Pd(OCOCF3)2 (0.05 mmol, 16.5 mg). The mixture with O2 balloon was stirred at 100 °C overnight. The substrate was consumed completely monitored by TLC. The mixture was cooled to room temperature, filtered through celite, washed with ethylacetate and concentrated under vacuum. The resulting residue was purified by column chromatography using hexane/ethyl acetate (v/v, 20/1 to 10/1) as the eluent to give the desired product.
  • 70
  • [ 3963-62-0 ]
  • (3aR,4R,6S,6aS)-6-(2,6-dichloro-9H-purin-9-yl)-N-ethyl-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxole-4-carboxamide [ No CAS ]
  • (3aR,4R,6S,6aS)-6-(2-chloro-6-(2,2-diphenylethylamino)-9H-purin-9-yl)-N-ethyl-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxole-4-carboxamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
94% In ethanol at 20℃; for 20h; (3aR,4R,6S,6aS)-6-(2-chloro-6-(2,2-diphenylethylamino)-9H-purin-9-yl)-N-ethyl-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxole-4-carboxamide To a stirred solution of (3aR,4R,6S,6aS)-6-(2,6-dichloro-9H-purin-9-yl)-N-ethyl-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxole-4-carboxamide (1.6 g, 4.0 mmol) in ethanol (40 mL) was added 2,2-diphenylethylamine (7.8 g, 39 mmol). The mixture was stirred at room temperature for 20 h then concentrated in vacuo. The resulting residue was dissolved in EtOAc and washed with HCl (2 M) (50 mL). The organic layer was dried (Na2SO4), filtered, and concentrated in vacuo to give a residue which was purified by flash chromatography (silica), eluting with methanol in DCM (2%), to afford (3aR,4R,6S,6aS)-6-(2-chloro-6-(2,2-diphenylethylamino)-9H-purin-9-yl)-N-ethyl-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxole-4-carboxamide (2.1 g, 3.7 mmol, 94%) as a yellow solid.
  • 71
  • [ 3963-62-0 ]
  • 2-[2,5-bis(4-cyanophenyl)furan-3-yl]acetic acid [ No CAS ]
  • N-(2,2-diphenylethyl)-2-[2,5-bis(4-cyanophenyl)furan-3-yl]acetamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
63% Stage #1: 2-[2,5-bis(4-cyanophenyl)furan-3-yl]acetic acid With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate In tetrahydrofuran for 0.166667h; Stage #2: 2,2-Diphenylethylamine With N-ethyl-N,N-diisopropylamine In tetrahydrofuran at 20℃; 5.1.14. General method for the synthesis of amides 13a-y General procedure: A mixture of 12 (0.3 mmol) and PyBOP (0.45 mmol) in THF (20 mL) was stirred for 10 min. Afterwards, the corresponding amine (0.34 mmol) and DIPEA (0.76 mmol) were given to the mixture and stirred overnight at RT. The crude mixture was evaporated, the product was dissolved in EtOAc, washed with Na2CO3 solution, and dried over Na2SO4. After evaporation, the product was purified by column chromatography (eluent: CHCl3/MeOH).
  • 72
  • [ 3963-62-0 ]
  • [ 122-60-1 ]
  • C23H25NO2 [ No CAS ]
YieldReaction ConditionsOperation in experiment
94% Stage #1: 2,2-Diphenylethylamine; Phenyl glycidyl ether In N,N-dimethyl-formamide at 60℃; for 12h; Sealed tube; Stage #2: With water In N,N-dimethyl-formamide at 60℃; for 12h; Sealed tube; regioselective reaction; General method for synthesis of amino alcohols: General procedure: In a 20 mL pressure tube (for volatile amines) was combined epoxide (1.0 mmol, 1.0 equiv) and amine (1.5 mmol, 1.5 equiv) 6.7 mL of reagent grade DMF. The reaction vessel fitted with a stirbar, sealed, and heated at 60°C for 12 h after which the vessel was allowed to cool to ambient temperature (not necessary for reactions not ran in pressure vessels) before receiving deionized water (50 equiv) in one portion. The vessel was resealed and stirred at 60°C for an additional 12 h. Solvent was removed on a rotary evaporator (22.5 mbar at 35°C) and the crude residue loaded directly onto a silica gel column.
50% at 70℃; Inert atmosphere; 13 Example 13. Preparation of Compound 14 (BC15161). 2,2-Diphenylethylamine (5 mmol) and 2-(phenoxymethyl)oxirane (5 mmol) were combined and stirred under N2 at 70 °C overnight. The reaction mixture was cooled down to produce a yellow oil. The product was then purified using column chromatograph to obtain the final product yellow powder (0.8 g, 50% yield).
  • 73
  • [ 3963-62-0 ]
  • 3-[5-(ethoxycarbonyl)-4-methyl-6-(3-nitrophenyl)-2-oxo-2,3-dihydropyrimidin-1(6H)-yl]propanoic acid [ No CAS ]
  • ethyl 3-[2-{(2,2-diphenylethyl)aminocarbonyl}ethyl]-6-methyl-4-(3-nitrophenyl)-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate [ No CAS ]
YieldReaction ConditionsOperation in experiment
88.3% With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In tetrahydrofuran at 0 - 8℃; 4.1.6 Ethyl 6-methyl-3-[2-(substitutedaminocarbonyl)-ethyl]-4-(3-nitrophenyl)-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (6a-j) General procedure: To a solution of the carboxylic acid derivative (5) (0.37g, 1mmol) and the appropriate amine (1.2mmol) in THF (20mL), 1-ethyl-3-(3- dimethylaminopropyl)-carbodiimide hydrochloride (EDCI-HCl) (1.2mmol) and 1-hydroxybenzotriazole (HOBT) (1.2mmol) were added at 0°C. The reaction mixture was stirred overnight at 2-8°C and progress of the reaction was monitored by TLC. After completion, the reaction mixture was concentrated by evaporation under reduced pressure, diluted with dichloromethane (100mL) and washed with water (10mL x 3) followed by brine (10mL x 3). The organic layer was then dried over anhydrous sodium sulfate and filtered. The filtrate was concentrated under reduced pressure. The pure compound was isolated by preparative TLC or silica gel column chromatography with gradient elution of ethyl acetate in hexanes.
  • 75
  • [ 3261-87-8 ]
  • [ 3963-62-0 ]
  • C18H19NO3S [ No CAS ]
  • 76
  • [ 175135-22-5 ]
  • [ 3963-62-0 ]
  • N-(2,2-diphenylethyl)-2-(propylthio)nicotinamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
52% With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine In N,N-dimethyl-formamide at 25℃; for 16h; 3 General methods of synthesis of A2 The material A1 (50 mg, 0.25 mmol), EDC (79 mg, 0.51 mmol), HOBt (69 mg, 0.51 mmol) and TEA (0.11 mL, 0.76 mmol) were dissolved in anhydrous DMF (2 mL).2,2-Diphenylethane-1-amine monohydrate (45 mg, 0.23 mmol) was added to the reaction mixture and stirred at room temperature for 16 hours. After the reaction is complete,The mixture was extracted with EtOAc and washed with water.The organic layer was dried over anhydrous MgSO4 and evaporated in vacuo.The resultant crude residue was purified by flash column chromatography (n-hexane: EA = 1: 3 ratio) to prepare an ivory solid A2.
  • 77
  • [ 201230-82-2 ]
  • [ 3963-62-0 ]
  • [ 40691-63-2 ]
YieldReaction ConditionsOperation in experiment
73% With copper (II) trifluoroacetate hydrate; 3-(trifluoromethyl)benzoic acid; palladium diacetate In 1,2-dichloro-ethane at 100℃; for 12h; Schlenk technique; Sealed tube;
  • 78
  • [ 3963-62-0 ]
  • [ 116247-98-4 ]
  • 1-(2,2-diphenylethyl)-5-(4-fluorophenyl)-4,5,6,7-tetrahydro-1H-[1,2,3]triazolo[4,5-c]pyridine [ No CAS ]
YieldReaction ConditionsOperation in experiment
57% With 4-nitrophenyl azide; acetic acid In toluene at 100℃; for 18h; Molecular sieve; 1.1. General procedure for the preparation of substituted 1,2,3-triazoles General procedure: To an oven-dried screw-capped reaction tube equipped with a magnetic stirring bar theketone (1 eq), amine (2.8 eq), 4-nitrophenyl azide (2 eq), acetic acid (10 mol%) and 4 Åmolecular sieves (50 mg) were added. The reaction mixture was dissolved in toluene(0.3M) and stirred at 100 °C for 18 hours. The crude reaction mixture was then directlypurified by column chromatography (silica gel) at first with dichloromethane (DCM) aseluent to remove all 4-nitroaniline formed during the reaction followed by using a mixtureof heptane and ethyl acetate as eluent to afford the corresponding 1,2,3-triazoles asyellow oil.
  • 79
  • [ 3963-62-0 ]
  • [ 207275-19-2 ]
  • (Z)-1-(2-bromophenyl)-3-((2,2-diphenylethyl)amino)undec-2-en-1-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
92% In methanol at 70℃; for 2h; Sealed tube; General Procedure 1 General procedure: To a solution of ynone (1.0 equiv) in MeOH (0.25 M) was added amine (2 equiv) followed by stirring and heating at 70 °C in a sealed tube. The mixture was then cooled and concentrated in vacuo. The crude product was purified using silica gel flash chromatography.
  • 80
  • [ 3963-62-0 ]
  • [ 321596-64-9 ]
  • 3-benzyloxy-N-(2,2-diphenylethyl)-1-methyl-1H-pyrazole-4-carboxamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
89% With dmap; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate In N,N-dimethyl-formamide at 20℃; 4.1.5 3-Benzyloxy-N-(2,2-diphenylethyl)-1-methyl-1H-pyrazole-4-carboxamide (13) A solution of 3-(benzyloxy)-1-methyl-1H-pyrazole-4-carboxylic acid (compound 11, 100mg, 0.431mmol), 2,2-diphenylethanamine (85.0mg, 0.431mmol), DMAP (52.6mg, 0.431mmol), and HBTU (327mg, 0.862mmol), was stirred at room temperature overnight in dry DMF (15mL). The solution was concentrated under reduced pressure, resuspended with diethyl ether (50mL), and washed with 2M HCl (2×30mL). The organic layer was dried over anhydrous Na2SO4 and concentrated under reduced pressure to afford the title compound as a pale yellow solid (m.p. 90.2-91.4°C with diisopropyl ether). Yield 89%. 1H NMR (300MHz, CDCl3, ppm) δ 3.71 (s; 3H-NCH3), 3.97 (dd, J=7.7Hz and J=5.8Hz; 2H -CH2CH(Ph)2), 4.19 (t, J=7.9Hz; 1H-CH2CH(Ph)2), 5.13 (s; 2H-OCH2Ph), 6.75 (t, J=5.1Hz; 1H, -CH2NHCO-), 7.12-7.41 (m; 15H, aromatic protons), 7.69 (s; 1H, pyrazole aromatic proton). 13C NMR (75MHz, CDCl3, ppm), δ 39.3, 43.4, 50.6, 71.1, 102.8, 126.7, 127.9, 128.0, 128.2, 128.5, 128.6, 134.3, 136.2, 142.1, 159.2, 162.2. MS (CI): m/z=412 [M+H]+. IR (KBr, cm-1), ν: 3402.0, 1646.2, 1577.0, 1485.4, 1273.1, 1172.5, 965.1.
  • 81
  • [ 3963-62-0 ]
  • 3-(benzyloxy)-1,5-dimethyl-1H-pyrazole-4-carboxylic acid [ No CAS ]
  • 3-benzyloxy-N-(2,2-diphenylethyl)-1,5-dimethyl-1H-pyrazole-4-carboxamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
87% With dmap; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate In N,N-dimethyl-formamide at 20℃; 4.1.5 3-Benzyloxy-N-(2,2-diphenylethyl)-1-methyl-1H-pyrazole-4-carboxamide (13) General procedure: A solution of 3-(benzyloxy)-1-methyl-1H-pyrazole-4-carboxylic acid (compound 11, 100mg, 0.431mmol), 2,2-diphenylethanamine (85.0mg, 0.431mmol), DMAP (52.6mg, 0.431mmol), and HBTU (327mg, 0.862mmol), was stirred at room temperature overnight in dry DMF (15mL). The solution was concentrated under reduced pressure, resuspended with diethyl ether (50mL), and washed with 2M HCl (2×30mL). The organic layer was dried over anhydrous Na2SO4 and concentrated under reduced pressure to afford the title compound as a pale yellow solid (m.p. 90.2-91.4°C with diisopropyl ether).
  • 82
  • [ 61006-29-9 ]
  • [ 3963-62-0 ]
  • 7-bromo-N-(2,2-diphenylethyl)-2H-benzo[e][1,2,4]thiadiazine-3-carboxamide 1,1-dioxide [ No CAS ]
YieldReaction ConditionsOperation in experiment
80% In ethanol at 100℃; for 0.5h; Microwave irradiation; 15.c c) 7-Bromo-/V-(2,2-diphenylethyl)-2/-/-benzo[e][1,2,4]thiadiazine-3-carboxamide 1,1 -dioxide (15) Ethyl 7-bromo-2/-/-benzo[e][1,2,4]thiadiazine-3-carboxylate 1,1 -dioxide (I5) (500 mg, 1.50 mmol), 2,2-diphenylethan-1 -amine (355 mg, 1.80 mmol) and absolute ethanol (5 mL) were heated in the microwave (100 °C/30 min). The mixture was cooled to room temperature, filtered, the collected solids washed with ethanol and air dried to give the product as a white solid (582 mg, 80% yield). LCMS-B rt: 3.52 min; m/z (negative ion) 483.7 [M-H]. 1H NMR (400 MHz, DMSO-d6) δ 9.24 (t, J = 5.9 Hz, 1H), 7.98 (d, J = 2.2 Hz, 1H), 7.92 (dd, J = 8.9, 2.2 Hz, 1H), 7.74 (d, J = 8.9 Hz, 1H), 7.35 - 7.25 (m, 8H), 7.24 - 7.14 (m, 2H), 4.48 (t, J = 7.9 Hz, 1H), 3.92 (dd, J = 7.9, 5.9 Hz, 2H).
  • 83
  • [ 1516-60-5 ]
  • allobetulone [ No CAS ]
  • [ 3963-62-0 ]
  • 1'-(2,2-diphenylethyl)-19,28-epoxy-(19β)-1'H-olean-2-eno[2,3-d][1,2,3]triazole [ No CAS ]
YieldReaction ConditionsOperation in experiment
79% With acetic acid In toluene at 100℃; for 24h; Inert atmosphere; Molecular sieve; 4.1.1. General procedure for the synthesis of 1,2,3-triazolederivatives of allobetulin 3a-z General procedure: Allobetulone, 4-nitrophenyl azide and amine were dissolved intry toluene under nitrogen atmosphere, and then a catalyticamount of acetic acid and 4 Å molecular sieves (50 mg) were addedto the mixture and this was warmed to 100 C for 24 h. When thereaction had finished, the product was purified by column chromatography (firstly dichloromethane was used to remove 4-nitroaniline, and then petroleum ether/ethyl acetate as eluent) toobtain the 1,2,3-triazole derivatives of allobetulin.
  • 84
  • [ 609-02-9 ]
  • [ 3963-62-0 ]
  • C20H23NO4 [ No CAS ]
YieldReaction ConditionsOperation in experiment
70% With iodine; potassium carbonate In acetonitrile at 70℃; for 20h; Inert atmosphere; Dimethyl methyl[β-phenylbenzenethaneamino]propanedioate (3r) A test tube containing a mixture of I2 (114.3 mg, 1.5 equiv., 0.45 mmol), potassium carbonate (124.4 mg, 3.0 equiv., 0.6 mmol) and acetonitrile (2.0 mL) were added β-phenylbenzenethaneamine (118.4 mg, 2.0 equiv., 0.6 mmol) and 2-methylmalonate 1a (43.8 mg, 0.3 mmol). The solution was flushed by Argon gas. The resulting solution was stirred at 70 °C for 20 h. The reaction was quenched with sat. Na2S2O3 aq. and extracted with EtOAc (10 mL x 3). The combined organic layers were washed with brine, dried over Mg2SO4, filtered and concentrated in vacuo. The resulting mixture was purified by flash column chromatography on silica gel (n-hexane : EtOAc = 4 :1) to give 72 mg of 3r (70% yield). 3r colorless oil. 1H NMR: (400 MHz, CDCl3) δ 7.31-7.18 (m, 10H), 4.17 (t, J = 7.3 Hz, 1H), 3.69 (s, 6H), 3.15 (d, J = 7.3 Hz, 2H), 1.56 (s, 3H). 13C{1H} NMR: (100 MHz, CDCl3) δ 171.2, 142.3, 128.6, 127.9, 126.6, 66.6, 52.6, 51.4, 48.1, 19.7. HRMS: m/z (DART) calcd for C20H23NO4+ (M+H)+ 342.1700, found 342.1691. FTIR (ATR): 3340, 3086, 3062, 3027, 3003, 2953, 2843, 1966, 1734, 1600, 1584, 1494, 1478, 1450, 1434, 1377, 1269, 1222, 1189, 1140, 1110, 1082, 1049, 1032, 1007, 975, 933, 914, 884, 855, 820, 789, 743, 699 cm-1. TLC (SiO2) : Rf = 0.40 (hexane : ethyl acetate = 4 : 1 )
  • 85
  • [ 173998-77-1 ]
  • [ 3963-62-0 ]
  • N’-tert-butoxycarbonyl-S-methyl-N-(2,2-diphenylethyl)carbamoylisothiourea [ No CAS ]
YieldReaction ConditionsOperation in experiment
48% With phosgene; N-ethyl-N,N-diisopropylamine In toluene at 0 - 20℃; Method A: General procedure: A solution of 15% phosgene in toluene or triphosgene(1 equiv) was diluted in DCM and cooled to 0 C. Subsequently, amixture of the respective amine (13e33, 1 equiv) and diisopropylethylamine(DIPEA, 3 equiv) in DCMwas added dropwise. After the solution was stirred for 5-30 min, a solution of 8 (2 equiv) in DCMwas added via a dropping funnel. The reactionwas allowed to stir atrt for 2e3 h and washed with H2O and brine. The organic layer wasdried over Na2SO4, the solvent was removed under reduced pressureand the crude product was purified by column chromatography(DCM).
  • 86
  • [ 3963-62-0 ]
  • [ 106-47-8 ]
  • C20H19ClN2S2 [ No CAS ]
YieldReaction ConditionsOperation in experiment
90% Stage #1: 4-chloro-aniline With 5,10-dihydro-6,9-dioxa-7,8-dithia-dibenzo[<i>a</i>,<i>c</i>]cyclodecene; tris(pentafluorophenyl)borate In 1,4-dioxane at 20℃; for 4h; Stage #2: 2,2-Diphenylethylamine With lithium carbonate In 1,4-dioxane at 20℃; for 12h; 28 Synthesis of compound 3e: Add 4-chloroaniline (12.7 mg, 0.1 mmol, 1.0 equiv), 5 (29.0 mg, 0.105 mmol, 1.05 equiv), B(C6F5) 3 (0.5 mg, 0.001 mmol, 1 mol%) to the reaction tube and redistill 1,4-dioxane (0.25mL), stirred at room temperature for 4 hours, and then added 2,2-diphenylethyl-1-amine (23.6mg, 0.12mmol, 1.2equiv) and lithium carbonate (7.4mg, 0.1 mmol, 1.0 equiv), stirring at room temperature for 12 hours, removing the solvent, and column chromatography to obtain a bright yellow liquid 3e (34.7 mg, 90%).
  • 87
  • [ 3963-62-0 ]
  • tert-butyl (R)-4-(2-aminophenyl)-1-(benzenesulfonyl)-2,3-dihydro-1H-pyrrole-2-carboxylate [ No CAS ]
  • C35H37N3O4S3 [ No CAS ]
YieldReaction ConditionsOperation in experiment
62% Stage #1: tert-butyl (R)-4-(2-aminophenyl)-1-(benzenesulfonyl)-2,3-dihydro-1H-pyrrole-2-carboxylate With 5,10-dihydro-6,9-dioxa-7,8-dithia-dibenzo[<i>a</i>,<i>c</i>]cyclodecene; tris(pentafluorophenyl)borate In 1,4-dioxane at 20℃; for 12h; Stage #2: 2,2-Diphenylethylamine With lithium carbonate In 1,4-dioxane at 20℃; for 12h; 34 Synthesis of compound 3k: Add (R)-4-(2-aminophenyl)-1-(benzenesulfonyl)-2,3-dihydro-1H-pyrrole-2-carboxylic acid tert-butyl ester (40.0mg, 0.1 mmol, 1.0equiv), 5 (29.0mg, 0.105mmol, 1.05equiv), B(C6F5)3 (2.5mg, 0.005mmol, 5mol%) and redistilled 1,4-dioxane (0.25mL), Stir at room temperature for 12 hours, then add 2,2-diphenylethyl-1-amine (23.6 mg, 0.12 mmol, 1.2 equiv) and lithium carbonate (7.4 mg, 0.1 mmol, 1.0 equiv), stir at room temperature for 12 hours, remove the solvent Column chromatography gave a brown foam solid 3k (40.9mg, 62%).
  • 88
  • [ 3963-62-0 ]
  • [ 98-80-6 ]
  • C20H19NS2 [ No CAS ]
YieldReaction ConditionsOperation in experiment
75% Stage #1: phenylboronic acid With 5,10-dihydro-6,9-dioxa-7,8-dithia-dibenzo[<i>a</i>,<i>c</i>]cyclodecene; [2,2]bipyridinyl; tetrakis(actonitrile)copper(I) hexafluorophosphate In dichloromethane for 10h; Inert atmosphere; Stage #2: 2,2-Diphenylethylamine In dichloromethane for 8h; Inert atmosphere; 3 Synthesis of compound 1c: Add phenylboronic acid (18.3mg, 0.15mmol, 1.5equiv), 5 (27.6mg, 0.10mmol, 1equiv), Cu(MeCN)4PF6 (3.7mg, 0.01mmol, 10mol%) to the reaction tube,2,2'-Bipyridine (3.1 mg, 0.02 mmol, 20 mol%) and redistilled dichloromethane (1 mL) were replaced with nitrogen and reacted for 10 hours. Add 2,2-diphenylethane-1-amine (23.7mg, 0.12mmol, 1.2equiv), react for 8 hours, remove the solvent, and obtain a colorless liquid 1c (25.3mg, 75%) by column chromatography.
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