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CAS No. : | 216584-22-4 | MDL No. : | MFCD11656061 |
Formula : | C16H29N3O6 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | XZGNHTJSFCBWHG-UHFFFAOYSA-N |
M.W : | 359.42 | Pubchem ID : | 10570451 |
Synonyms : |
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Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P280-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302 | Packing Group: | N/A |
GHS Pictogram: |
* 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.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With potassium hydroxide; sodium carbonate 1.) DMSO, 5 min; other reagent: sodium hydroxide, 2.) DMSO, 40 deg C, 60 h; Yield given; Multistep reaction; | ||
Stage #1: guanidine hydrochloride With sodium carbonate; potassium hydroxide In dimethyl sulfoxide at 20℃; Stage #2: di-<i>tert</i>-butyl dicarbonate In dimethyl sulfoxide at 40℃; for 65h; | 26 Example 26 N,N',N"-tri-Boc-guanidine To a 300 mL, 3-neck, round bottom flask were added powdered KOH (2.94 g, 0.052 mol), Na2CO3 (5.54 g, 0.052 mol) and DMSO (50 mL). The resultant slurry was aged at room temperature for 5 min, then guanidine hydrochloride (5.0 g, 0.052 mol) was added. After an additional 5 min, di-t-butyldicarbonate (51.4 g, 0.23 mol) was added as a melt. The resultant mixture was warmed to 40° C. and aged for 65 h. The resultant mixture was cooled to 10° C. and poured into 0° C. water (1.0 L). The resultant precipitate was collected by filtration and purified by hot trituration in acetonitrile (500 mL) to yield N,N',N"-tri-Boc-guanidine. 1H-NMR: (400 MHz, CDCl3) δ, 1.51 (s, 27 Hz). MS (electrospray): exact mass calculated for C16H29N3O6, 359.21; m/z found, 360.2 [M+H]+ |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
40% | With triphenylphosphine; diethylazodicarboxylate In toluene at 60℃; for 4h; |
Yield | Reaction Conditions | Operation in experiment |
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72% | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran Heating; 15-18 h; |
Yield | Reaction Conditions | Operation in experiment |
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61% | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran Heating; 15-18 h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
85% | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
85% | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
100% | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran at 20℃; for 24h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
81% | With triphenylphosphine; diethylazodicarboxylate In toluene at 20 - 60℃; for 2h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
74% | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran for 2h; Heating; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
65% | With potassium hydroxide In dichloromethane; water |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
67% | With potassium hydroxide; potassium iodide In dichloromethane; water at 20℃; for 17h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With potassium hydroxide In dichloromethane; water for 16h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
64% | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran at 0℃; for 0.5h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
1: 60% 2: 35% | With sodium hydroxide In 1,4-dioxane at 0 - 20℃; for 26h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
52% | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
60% | In tetrahydrofuran at 20℃; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
58% | In tetrahydrofuran at 20℃; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
97% | In tetrahydrofuran at 20℃; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
98% | In tetrahydrofuran at 20℃; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
45% | In tetrahydrofuran at 20℃; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1: KOH / tetrabutylammonium iodide / CH2Cl2; H2O / 16 h 2: 112 mg / KOH / tetrabutylammonium iodide / CH2Cl2; H2O / 16 h / 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1: 72 percent / triphenylphosphine, diethylazodicarboxylate / tetrahydrofuran / Heating; 15-18 h 2: 99 percent / hydrogen / Pd/C / methanol / 4 h |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
92% | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran at 80℃; for 1.5h; microwave irradiation; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
90% | Stage #1: N1,N2,N3-tris(tert-butoxycarbonyl)guanidine With potassium hydroxide; tetrabutylammomium bromide In acetonitrile at 20℃; for 0.5h; Stage #2: prenyl bromide In acetonitrile at 20℃; for 14h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
81% | Stage #1: N1,N2,N3-tris(tert-butoxycarbonyl)guanidine With cesium hydroxide monohydrate In dichloromethane at 20℃; for 0.166667h; Inert atmosphere; Stage #2: C17H21O4P With bis(1,5-cyclooctadiene)diiridium(I) dichloride; (S,S)-2,6-bis(4-phenyl-2-oxazolinyl)pyridine In dichloromethane at -20℃; for 20h; optical yield given as %ee; enantioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
77% | Stage #1: N1,N2,N3-tris(tert-butoxycarbonyl)guanidine With cesium hydroxide monohydrate In dichloromethane at 20℃; for 0.166667h; Inert atmosphere; Stage #2: C17H21O4P With bis(1,5-cyclooctadiene)diiridium(I) dichloride; (S,S)-2,6-bis(4-phenyl-2-oxazolinyl)pyridine In dichloromethane at 20℃; for 10h; optical yield given as %ee; enantioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
99% | With tetrakis(triphenylphosphine) palladium(0) In dichloromethane at 20℃; for 1h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
94% | With tetrakis(triphenylphosphine) palladium(0) In dichloromethane at 20℃; for 1h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With bis(1,5-cyclooctadiene)diiridium(I) dichloride In acetonitrile at 20℃; for 1h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With diethylazodicarboxylate; In tetrahydrofuran; at 2 - 20℃; for 4.16667h; | Example 27 N-[3-(1-methylpiperidin-4-yl)-propyl]-N,N',N"-tri-Boc-guanidine To a 100 mL, 3-neck, round bottom flask were added <strong>[7037-30-1]3-(1-methyl-piperidin-4-yl)-propan-1-ol</strong> (1.91 g, 0.012 mol), Polymer Labs (Varian) PL-TPP resin (9.83 g, 0.014 mol), N,N',N"-tri-Boc-guanidine (4.36 g, 0.012 mol) and THF (anhydrous, 100 mL). The resultant mixture was stirred and cooled to 2 C., at which time DEAD (2.53 g, 0.014 mol) was added drop wise over 10 min. Upon completion of addition, the flask was warmed to room tempertaure, aged for 4 h and filtered to remove the resin bound oxide. The resultant cake was rinsed with THF (25 mL) and heptane (2*25 mL). The filtrates were combined, extracted with saturated aqueous NaHCO3 (2*25 mL), dried over anhydrous MgSO4, filtered and concentrated. The resultant residue was triturated in hot ethanol (25 mL), cooled to room temperature and filtered. The filtrate was concentrated to yield N-[3-(1-methylpiperidin-4-yl)-propyl]-N,N',N"-tri-Boc-guanidine. 1H-NMR: (400 MHz, CDCl3) delta, 10.64 (brs,1H), 3.75 (t, J=7.1 Hz, 2H), 2.83-2.80 (m, 2H), 2.24 (s, 3H), 1.87 (t, J=10.1 Hz, 2H), 1.72-1.63 (m, 4H), 1.54-1.46 (m, 27H), 1.30-1.18 (m, 5H). MS (electrospray): exact mass calculated for C25H46N4O6, 498.34; m/z found, 499.4 [M+H]+ |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
35% | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran at 0 - 25℃; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
69% | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran at 60℃; for 3h; Inert atmosphere; | |
69% | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran at 60℃; for 3h; | 20 (±)-Tri-Boc-guanidine compound To a suspension of alcohol (±)-S.I. 12 (28 mg, 0.074 mmol), tri-Boc-guanidine (80 mg, 0.22 mmol), and Ph3P (29 mg, 0.11mmol), was added diethyldiazocarboxylate (DEAD, 17 jiL, 0.11 mmol) at room temperature. The reaction mixture was heated to 60 °C, and stirred for 3 h. The reaction mixture was concentrated under reduced pressure, the residue was purified by silica gel column chromatography using EtOAc/hexanes (10% to 20%) to give a mixture of (±)-S.I. 14 and tri-Boc-guanidine reagent. The mixture was suspended in hexanes, and then filtered off to remove precipitate. The residue was concentrated to yield (±)-S.I. 13 (37 mg, 69%) asa white crystalline solid. ‘H NMR (500 MHz, CDC13) (510.56 (br. s, 1H), 9.48 (s, 1H),7.72-7.78 (m, 2H), 7. 14-7.35 (m, 6H), 5.15 (t, J 8.8 Hz, 1H), 3.87-3.93 (m, 2H), 3.22(dd,J= 16.0, 8.0 Hz, 1H), 2.65 (dd,J= 16.0, 9.0 Hz, 1H), 2.38 (m, 1H), 2.11 (m, 1H), 1.85(m, 1H), 1.51 (s, 27H); LCMS: m/z= 718.3 (M+H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
92% | With tetra-(n-butyl)ammonium iodide; sodium hydroxide In water; toluene for 20h; | 6a N,N′,N″-Tri(tert-butoxycarbonyl)-N-(1-oxo-1H-phenalene-2-ylmethyl)-guanidine 2-Chloromethyl-1H-phenalene-1-one (23 mg, 0.1 mmol) and N,N′,N″-tri-Boc-guanidine (144 mg, 0.4 mmol) were dissolved in toluene (1 mL). Aqueous caustic soda solution (1 mL, 5 M, 5.0 mmol) was added, followed by tetrabutylammonium iodide (5 mg), and the batch was stirred vigorously for 20 h. It was diluted with 10 mL DCM, the aqueous phase was separated off and the organic phase was washed twice more with water (5 mL). After drying over MgSO4, the solvent was drawn off and the residue purified by column chromatography with DCM/ethanol 40:1. 51 mg of a tough yellow solid (0.092 mmol, 92% theoretical) was obtained. [0180] 1H-NMR (300 MHz, CDCl3): δ [ppm]=1.41 (s, 9H), 1.43 (s, 9H), 1.44 (s, 9H), 4.62 (s, 2H), 7.65 (dd, 1H, J=7 Hz, 8 Hz), 7.78 (m, 2H), 7.91 (s, 1H), 8.02 (d, 1H, J=8 Hz), 8.17 (d, 1H, J=7.5 Hz), 8.67 (d, 1H, J=8 Hz); -MS (ESI-MS, CH2Cl2/MeOH+10 mmol NH4OAc): e/z (%)=552.2 (100, MH+), 496.2 (61, MH+-C4H9), 452.1 (46, MH+-CO2-C4H9); -UV (MeOH): λ (ε)=246 (15200), 320 (2300), 360 (7300), 384 (6700); |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
77% | With di-tert-butyl-diazodicarboxylate; triphenylphosphine In tetrahydrofuran at 23℃; for 2h; Inert atmosphere; | |
77% | With di-tert-butyl-diazodicarboxylate; triphenylphosphine In tetrahydrofuran at 20℃; for 2h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
71% | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran at 0 - 80℃; for 1.5h; Inert atmosphere; Sealed tube; Microwave irradiation; | 1.M M. tetra-Boc-JP-III-048 (15) To a solution of(-)-14 (250 mg, 0.494 mmol) in THF (16.5 mL) were added N,N',N''- tri-Boc-guanidine (533 mg, 1.482 mmol) and triphenylphosphine (194 mg, 0.741 mmol). The suspension was cooled to 0 C and DEAD (0.338 mL, 0.741 mmol) was added dropwise. The reaction vessel was sealed and heated to 80 °C for 90 min under microwave conditions. After cooling to rt, the reaction was quenched by addition of sat. aq. NaHCO3 and extracted with EtOAc. The combined organic layers were washed with brine, dried over Na2SO4 and concentrated in vacuo. Flash column chromatography (SiO2, 10:1 to 2:1 hexanes/EtOAc) afforded (+)-15 as a white foam (298 mg, 71%). 1H NMR (500 MHz, CDCl3) δ 9.38 (s, 1 H), 7.79 (d, J = 9.1 Hz, 1 H), 7.74 (dd, J = 10.7, 2.4 Hz, 1 H), 7.37 (t, J = 8.2 Hz, 1 H), 7.22-7.26 (m, J = 8.7, 1.2, 1.2 Hz, 1 H), 7.18 (d, J = 7.7 Hz, 1 H), 7.11 (br s, 1 H), 7.03 (s, 1 H), 5.24 (t, J = 8.7 Hz, 1 H), 4.36 (br s, 2 H), 4.08- 4.23 (m, 2 H), 3.15 (dd, J = 15.5, 8.1 Hz, 1 H), 2.83-2.91 (m, 1 H), 2.71-2.83 (m, 4 H), 1.46- 1.51 (m, 27 H), 1.44 (s, 9 H); 13C NMR (125 MHz, CDCl3, mixture of rotamers) δ 187.8, 159.5, 158.3, 158.1 (JCF = 246 Hz) 157.7, 157.3, 153.1, 140.9, 137.2, 136.4, 130.7, 125.0, 117.0, 115.8 (d, JCF = 4 Hz), 108.3 (d, JCF = 27 Hz), 83.5, 58.4, 49.8, 48.3, 34.7, 33.8, 28.4, 28.1, 28.0, 27.9, 27.9; HRMS (ES+) m/z = 847.3782 ([M+H]+; calcd for C41H57N6O10ClF: 847.3809); +22.6 (c 1.15, CH2Cl2) (-)-15: data consistent with (+)-isomer-[α]20D -25.1 (c 2.0, CH2Cl2). |
71% | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran at 0 - 80℃; for 1.5h; Inert atmosphere; Microwave irradiation; Sealed tube; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
66% | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran at 0 - 80℃; for 1.5h; Inert atmosphere; Sealed tube; Microwave irradiation; | 2.L L. tetra-Boc BNM-III-170 ((+)-15) To a solution of(+)-14 (220 mg, 0.435 mmol) in THF (16.5 mL) were added N,N’,N"-tri-Boc- guanidine (469 mg, 1.305 mmol) and triphenylphosphine (171 mg, 0.653 mmol). The suspension was cooled to 0 C and DEAD (0.297 mL, 0.653 mmol) was added dropwise. The reaction vessel was sealed and heated to 80 C for 90 min under microwave conditions. After cooling to rt, the reaction was quenched by addition of sat. aq. NaHCO3 and extracted with EtOAc. The combined organic layers were washed with brine, dried over Na2SO4 and concentrated in vacuo. Flash column chromatography (SiO2, 10:1 to 2:1 hexanes/EtOAc) afforded (+)-15 as a white foam (248 mg, 66%).1H NMR (500 MHz, CDCl3) δ 9.32 (s, 1 H), 7.79-7.74 (m, 2 H), 7.39 (t, J = 8.5 Hz, 1 H), 7.24-7.22 (m, 1 H), 7.16 (d, J = 7.9 Hz, 1 H), 7.08 (br s, 2 H), 5.26 (t, J = 8.6 Hz, 1 H), 4.41 (s, 2 H), 4.16-4.11 (m, 4 H), 3.17 (q, J = 7.7 Hz, 1 H), 2.90-2.76 (m, 5 H), 1.55-1.47 (m, 36 H); 13C NMR (125 MHz, CDCl3) δ 159.7, 159.2, 157.5, 153.3, 142.5, 140.3, 138.7, 136.5, 130.9, 124.1, 116.0, 108.4 (d, JCF = 25.9 Hz), 83.6, 58.5, 50.1, 48.3, 35.1, 34.0, 29.8, 28.6, 28.2, 28.1; HRMS (ES+) m/z = 847.3828 ([M+H]+; calcd for C41H57N6O10ClF: 847.3809); +28.2 (c 1.28, CH2Cl2). (-)-15: data consistent with (+)-isomer--40.0 (c 0.13, CH2Cl2) |
66% | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran at 0 - 80℃; for 1.5h; Inert atmosphere; Sealed tube; Microwave irradiation; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
67% | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
40.1% | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran; toluene at 20℃; for 5h; Cooling with ice; | 13 synthesis of tert-butyl N-[N,N’-bis(tert-butoxycarbonyl)carbamimidoyl]-N-[6-[tert-butyl(dimethyl)silyl]oxyhex-3-ynyl]carbamate 6- [tert-Butyl (dimethyl) silyl] oxyhex-3-yn-1-ol (3.61 g) was dissolved in tetrahydrofuran (70 mL). Under ice-cooling, triphenylphosphine (4.14 g), tert-butyl N- [bis (tert-butoxycarbonylamino) methylene] carbamate (8.52 g) and diethyl azodicarboxylate (2.2 M toluene Solution) (7.18 mL) was added. This was stirred at room temperature for 5 hours. The resulting solution was concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography to give the title compound (3.68 g, yield 40.1%). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
0.04 g | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran at 5 - 50℃; for 18h; Inert atmosphere; | 6 Synthesis of 3-(4-(6-(butylthio)imidazo[1,2-a]pyridin-2-yl)phenoxy)propan amine tri-boc Guanadine (10) A solution of compound 8 (0.250 g, 0.70 mmol), N,-N′-N″-tri-Boc-guanadine (1.26 g, 3.51 mmol) and triphenyl phosphine (Ph3P, 0.275 g, 1.05 mmol) in anhydrous THF (50 mL) was cooled to 5° C. under N2. Diethylazodicarboxylate (DEAD, 0.18 mL, 1.05 mmol, d=1.1 g/mL) was added dropwise at a rate such that the reaction mixture was completely colorless before addition of the next drop. After the addition of DEAD, the reaction mixture was stirred for 18 h at 50° C. After completion of reaction, monitored by TLC, the reaction mixture was cooled to rt and hexanes (50 mL) added. A precipitate of excesses N,-N′-N″-tri-Boc-guanadine forms which is separated by the filtration on Buchner funnel and washed with mixture of THF:hexanes (1:1, 50 mL). The filtrate is concentrated under reduced pressure and the crude product (light yellow sticky solid, 0.040 g was purified by flash column chromatography on silica gel (eluent: 30% ethyl acetate/70% hexanes).1H NMR (500 MHz, Chloroform-d) δ 8.11 (s, 1H), 7.78 (d, J=8.6 Hz, 2H), 7.65 (s, 1H), 7.57-7.48 (m, 1H), 7.16 (d, J=9.7 Hz, 1H), 6.90-6.86 (m, 2H), 4.03 (t, J=6.2 Hz, 2H), 3.96 (t, J=6.9 Hz, 2H), 2.78 (t, J=7.4 Hz, 2H), 2.10 (t, J=6.6 Hz, 2H), 1.52 (q, J=7.6 Hz, 3H), 1.44 (s, 4H), 1.42 (s, 16H), 1.40 (s, 9H), 1.19 (s, 5H), 0.85 (t, J=7.4 Hz, 3H). 13C NMR (126 MHz, CDCl3) δ 159.4, 153.6, 152.8, 127.5, 127.2, 114.9, 107.2, 83.51, 65.6, 45.2, 35.6, 31.5, 29.8, 28.7, 28.2, 28.′, 28.1, 21.9, 13.7. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
53.4% | With di-isopropyl azodicarboxylate; triphenylphosphine In tetrahydrofuran; toluene at 20℃; Cooling with ice; | 21 Synthesis of tert-butyl N-[N,N'-bis(tert-butoxycarbonyl)-N-[5-[4-(N-tert-butoxycarbonyl carbamimidoyl)phenyl]pent-4-ynyl]carbamimidoyl]-N-[5-[4-(N-tert-butoxycarbonyl carbamimidoyl)phenyl]pent-4-ynyl]carbamate Tert-butyl N-[bis(tert-butoxycarbonylamino)methylene]carbamate (360 mg) was dissolved in tetrahydrofuran (4 mL). Tert-butyl N-[4-(5-bromopent-1-ynyl) benzenecarboximidoyl]carbamate (194 mg), triphenylphosphine (312 mg), and diisopropyl azodicarboxylate (2.2M in toluene solution) (541 μL) were added to the solution under ice-cooling. The reaction mixture was warmed to room temperature and then stirred at the same temperature overnight. The reaction mixture was concentrated under reduced pressure, and the resulting residue was purified by silica gel column chromatography to obtain the title compound (compound No. 21: 268 mg, in a yield of 53.4%).1HNMR (CDCl3): 1.47-1.59 (m, 45H), 1.98 (tt, 4H), 2.47 (t, 4H), 3.69 (dd, 4H), 7.38 (d, 4H), 7.71 (d, 4H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
53.4% | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran; toluene at 20℃; Cooling with ice; | 9.1 (Step 1) Synthesis of tert-butyl N-(4-bromobutyl)-N-[N-(4-bromobutyl)-N,N′-bis (tert-butoxycarbonyl)carbamimidoyl]carbamate Tert-butyl N-[bis(tert-butoxycarbonylamino)methylene]carbamate (1 g) was dissolved in 130 tetrahydrofuran (7 mL). Triphenylphosphine (1.83 g), 132 4-bromobutane-1-ol (1.07 g), and diethyl azodicarboxylate (2.2M in 134 toluene solution, 3.2 mL) were added to the resultant under ice-cooling. The mixture was stirred at room temperature overnight. Water was added to the reaction mixture, and the mixture was subj ected to extraction with ethyl acetate. The resultant organic layer was dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure, and the resulting residue was purified by silica gel column chromatography to obtain the title compound (935 mg, in a yield of 53.4%).1HNMR (CDCl3): 1.48 (s, 27H), 1.74-1.95 (m, 8H), 3.42 (t, 4H), 3.56 (dd, 4H) |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With potassium carbonate In N,N-dimethyl-formamide at 50℃; | 15.1 (Step 2) Synthesis of tert-butyl N-[7-[[N,N′-bis(tert-butoxycarbonyl)carbamimidoyl]amino]heptyl]-N-[N-[7-[[N,N′-bis(tert-butoxycarbonyl)carbamimidoyl]amino]heptyl]-N, N′-bis(tert-butoxycarbonyl)carbamimidoyl]carbamate General procedure: The tert-butyl N-(7-bromoheptyl)-N-[N-(7-bromoheptyl)-N,N′-bis(tert-butoxy carbonyl)carbamimidoyl]carbamate (400 mg) obtained in the step 1 was dissolved in N, N-dimethylformamide (5 mL). Potassium carbonate (232 mg) and tert-butyl N-[amino(tert-butoxycarbonylamino)methylene]carbamate (363 mg) were added to the resultant at room temperature. The resultant was stirred at 50° C. overnight, and then the reaction mixture was cooled to room temperature. Water was added to the reaction mixture, and the mixture was subjected to extraction with ethyl acetate. The resultant organic layer was dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure, and the resulting residue was purified by silica gel column chromatography to obtain the 147 title compound (compound No. 11: 404 mg, in a yield of 67.3%). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
0.23 g | Stage #1: tert-butyl ((6-(3-hydroxypropoxy)pyridin-3-yl)(imino)methyl)carbamate; N1,N2,N3-tris(tert-butoxycarbonyl)guanidine With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran; toluene at 20℃; for 24h; Stage #2: With trifluoroacetic acid In dichloromethane at 20℃; for 72h; Stage #3: With hydrogenchloride In 1,4-dioxane; methanol at 20℃; for 18h; | 17 Synthesis of hydrochloride salt of 6,6′-((((iminomethylene)bis(azanediyl))bis (propane-3,1-diyl))bis(oxy))dinicotinimidamide Tert-butyl ((6-(3-hydroxypropoxy)pyridin-3-yl)(imino)methyl)carbamate (0.53 g) was dissolved in tetrahydrofuran (8 mL). Tert-butyl N-[bis(tert-butoxycarbonylamino) methylene]carbamate (0.36 g) was added to the resultant at room temperature. Triphenylphosphine (0.66 g) and diethyl azodicarboxylate (1.2 mL, 2.2 M in toluene solution) were added to the resultant at room temperature. The mixture was stirred for 24 hours, and then the solvent was distilled off from the reaction mixture. The residue was purified by silica gel column chromatograph. The obtained crude product was dissolved in dichloromethane (3 mL), and then trifluoroacetic acid (1.5 mL) was added to the solution. After the mixture was stirred at room temperature for 72 hours, the solvent was distilled off from the reaction mixture. The crude product was dissolved in methanol (3 mL), and then hydrogen chloride (3 mL, 4M in 1,4-dioxane solution) was added to the solution. The mixture was stirred at room temperature for 18 hours, and then the solvent was distilled off from the reaction mixture to obtain the title compound (compound No. 17: 0.23 g).1HNMR (CDCl3): 2.16 (m, 4H), 3.48 (m, 4H), 4.58 (m, 4H), 7.32 (d, 2H), 8.37 (d, 2H), 8.79 (s, 2H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
18% | With potassium carbonate In N,N-dimethyl-formamide at 20℃; | 60.1 (Step 1) Synthesis of tert-butyl N- [N,N′-bis(tert-butoxycarbonyl)carbamimidoyl]-N-[4-[[5-(N-tert-butoxycarbonylcarbamimidoyl)-2-pyridyl]oxy]butyl]carbamate Tert-butyl N-[6-(4-bromobutoxy)pyridine-3-carboximidoyl]carbamate (0.50 g) and 1,2,3-tris(tert-butoxycarbonyl)guanidine (0.97 g) were dissolved in N, N-dimethylformamide (13 mL). Potassium carbonate (0.20 g) was added to the solution, and the resultant was stirred at room temperature overnight. Then, the reaction mixture was cooled to room temperature, water was added thereto, and then the resultant was subjected to extraction with chloroform. The resultant organic layer was dried over anhydrous magnesium sulfate and filtered. The filtrate was concentrated under reduced pressure and the resulting residue was purified by silica gel column chromatography to obtain the title compound (0.16 g, in a yield of 18%). 1H NMR (CDCl3): 1.45-1.57 (m, 36H), 1.73-1.88 (m, 4H), 3.79-3.93 (m, 2H), 4.29-4.40 (m, 2H), 6.71 (d, 1H), 8.12 (dd, 1H), 8.59 (d, 1H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
2.59 g | With azodicarboxylic acid bis(2-methoxyethyl) ester; triphenylphosphine In toluene at 20℃; | 58.1 (Step 1)Synthesis of tert-butyl N-[N,N'-bis(tert-butoxycarbonyl)carbamimidoyl]-N-[5-[[N,N'-bis(tert-butoxycarbonyl)carbamimidoyl]amino]pentyl]carbamate Tert-butyl N-[[tert-butoxycarbonylamino]-[5-hydroxypentylamino]methylene]carbamate (2.61 g) was dissolved in toluene (50 mL). 1,2,3-tris(tert-butoxycarbonyl)guanidine (4.11 g) was added to the solution at room temperature. Triphenylphosphine (3.02 g) and bis(2-methoxyethyl)azodicarboxylate (2.74 g) were added to the mixture at room temperature. The resultant was stirred overnight and then poured into water to conduct extraction with ethyl acetate. The resultant organic layer was washed with saturated saline solution, dried over anhydrous sodium sulfate, and then concentrated, followed by purifying the resulting residue by silica gel column chromatography to obtain the title compound (2.59 g). 1H NMR (CDCl3): 1.30-1.74 (m, 51H), 3.40 (q, 2H), 3.77 (t, 2H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
63% | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran at 0 - 70℃; for 18h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
50 mg | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran; toluene at 0 - 20℃; for 2.5h; | 4.B.i i) The Boc protected S-ethyl (l,3-dioxoisoindolin-2-yl)(3-(N,N’,N’’tri-boc- guanidinopropyl) carbamothioate (20180402-A660W). A solution of ri-ethyl (l,3-dioxoisoindolin-2-yl) carbamothioate (125 mg, 0.5 mmol) in anhydrous THF (2.0 mL) was treated with propandiol (57 uL, 0.75 mmol), PPh3 (197 mg, 0.75 mmol) and DEAD (330 uL, 0.75 mmol) according to above-mentioned procedure. The resulting alcohol was used in the next step after FCC purification. A solution of the alcohol from the previous step (70 mg, 0.227 mmol) in anhydrous THF (1.0 mL) was treated with N, N’, N” tri-Boc-Guanidine (122 mg, 0.34 mmol), PPh3 (89 mg, 0.34 mmol) and DEAD (150 uL, 0.34 mmol) according to above-mentioned. Upon purification using FCC protocol we collected (50 mg, 35%). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
78% | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran at 0 - 20℃; for 18h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
76% | With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran at 0 - 20℃; for 18h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
59% | Stage #1: C44H77N9O12 With hydrogenchloride In methanol; diethyl ether for 2h; Stage #2: N1,N2,N3-tris(tert-butoxycarbonyl)guanidine | 1 Synthesis of Abt5 Abt4 (1 equiv.) was introduced into an oven-dried vial with a stir bar in it. 1 :1 mixture of methanol and 2M HCI in diethyl ether was add to the vial. The solution gradually turned from clear to opaque over the course of 2 hours, after which the reaction mixture was concentrated and left under high vacuum overnight. The obtained solid was dissolved in dry methanol followed by the sequent addition of triethylamine (20 equiv.) and N- ,N’-Boc triflylguanadine (3.9 equiv). The reaction was stirred overnight and later concentrated in vacuo. The crude product afforded was purified with 5% MeOH:DCM to afford a pale yellow oil in 59% yield. |
59% | Stage #1: C44H77N9O12 With hydrogenchloride In methanol; diethyl ether for 2h; Stage #2: N1,N2,N3-tris(tert-butoxycarbonyl)guanidine | 1 Synthesis of Abt5 Abt4 (1 equiv.) was introduced into an oven-dried vial with a stir bar in it. 1 :1 mixture of methanol and 2M HCI in diethyl ether was add to the vial. The solution gradually turned from clear to opaque over the course of 2 hours, after which the reaction mixture was concentrated and left under high vacuum overnight. The obtained solid was dissolved in dry methanol followed by the sequent addition of triethylamine (20 equiv.) and N- ,N’-Boc triflylguanadine (3.9 equiv). The reaction was stirred overnight and later concentrated in vacuo. The crude product afforded was purified with 5% MeOH:DCM to afford a pale yellow oil in 59% yield. |
Tags: 216584-22-4 synthesis path| 216584-22-4 SDS| 216584-22-4 COA| 216584-22-4 purity| 216584-22-4 application| 216584-22-4 NMR| 216584-22-4 COA| 216584-22-4 structure
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