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Structure of 53557-69-0

Chemical Structure| 53557-69-0

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Product Details of [ 53557-69-0 ]

CAS No. :53557-69-0
Formula : C4H4IN3
M.W : 221.00
SMILES Code : NC1=NC=NC(=C1)I
MDL No. :MFCD11109819
InChI Key :LQSJUQMCZHVKES-UHFFFAOYSA-N
Pubchem ID :12258871

Safety of [ 53557-69-0 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H332-H335
Precautionary Statements:P261-P280-P305+P351+P338

Computational Chemistry of [ 53557-69-0 ] Show Less

Physicochemical Properties

Num. heavy atoms 8
Num. arom. heavy atoms 6
Fraction Csp3 0.0
Num. rotatable bonds 0
Num. H-bond acceptors 2.0
Num. H-bond donors 1.0
Molar Refractivity 39.15
TPSA ?

Topological Polar Surface Area: Calculated from
Ertl P. et al. 2000 J. Med. Chem.

51.8 Ų

Lipophilicity

Log Po/w (iLOGP)?

iLOGP: in-house physics-based method implemented from
Daina A et al. 2014 J. Chem. Inf. Model.

1.44
Log Po/w (XLOGP3)?

XLOGP3: Atomistic and knowledge-based method calculated by
XLOGP program, version 3.2.2, courtesy of CCBG, Shanghai Institute of Organic Chemistry

0.48
Log Po/w (WLOGP)?

WLOGP: Atomistic method implemented from
Wildman SA and Crippen GM. 1999 J. Chem. Inf. Model.

0.67
Log Po/w (MLOGP)?

MLOGP: Topological method implemented from
Moriguchi I. et al. 1992 Chem. Pharm. Bull.
Moriguchi I. et al. 1994 Chem. Pharm. Bull.
Lipinski PA. et al. 2001 Adv. Drug. Deliv. Rev.

0.33
Log Po/w (SILICOS-IT)?

SILICOS-IT: Hybrid fragmental/topological method calculated by
FILTER-IT program, version 1.0.2, courtesy of SILICOS-IT, http://www.silicos-it.com

1.31
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

0.85

Water Solubility

Log S (ESOL):?

ESOL: Topological method implemented from
Delaney JS. 2004 J. Chem. Inf. Model.

-2.07
Solubility 1.89 mg/ml ; 0.00856 mol/l
Class?

Solubility class: Log S scale
Insoluble < -10 < Poorly < -6 < Moderately < -4 < Soluble < -2 Very < 0 < Highly

Soluble
Log S (Ali)?

Ali: Topological method implemented from
Ali J. et al. 2012 J. Chem. Inf. Model.

-1.14
Solubility 16.1 mg/ml ; 0.0729 mol/l
Class?

Solubility class: Log S scale
Insoluble < -10 < Poorly < -6 < Moderately < -4 < Soluble < -2 Very < 0 < Highly

Very soluble
Log S (SILICOS-IT)?

SILICOS-IT: Fragmental method calculated by
FILTER-IT program, version 1.0.2, courtesy of SILICOS-IT, http://www.silicos-it.com

-2.25
Solubility 1.24 mg/ml ; 0.00561 mol/l
Class?

Solubility class: Log S scale
Insoluble < -10 < Poorly < -6 < Moderately < -4 < Soluble < -2 Very < 0 < Highly

Soluble

Pharmacokinetics

GI absorption?

Gatrointestinal absorption: according to the white of the BOILED-Egg

High
BBB permeant?

BBB permeation: according to the yolk of the BOILED-Egg

Yes
P-gp substrate?

P-glycoprotein substrate: SVM model built on 1033 molecules (training set)
and tested on 415 molecules (test set)
10-fold CV: ACC=0.72 / AUC=0.77
External: ACC=0.88 / AUC=0.94

No
CYP1A2 inhibitor?

Cytochrome P450 1A2 inhibitor: SVM model built on 9145 molecules (training set)
and tested on 3000 molecules (test set)
10-fold CV: ACC=0.83 / AUC=0.90
External: ACC=0.84 / AUC=0.91

No
CYP2C19 inhibitor?

Cytochrome P450 2C19 inhibitor: SVM model built on 9272 molecules (training set)
and tested on 3000 molecules (test set)
10-fold CV: ACC=0.80 / AUC=0.86
External: ACC=0.80 / AUC=0.87

No
CYP2C9 inhibitor?

Cytochrome P450 2C9 inhibitor: SVM model built on 5940 molecules (training set)
and tested on 2075 molecules (test set)
10-fold CV: ACC=0.78 / AUC=0.85
External: ACC=0.71 / AUC=0.81

No
CYP2D6 inhibitor?

Cytochrome P450 2D6 inhibitor: SVM model built on 3664 molecules (training set)
and tested on 1068 molecules (test set)
10-fold CV: ACC=0.79 / AUC=0.85
External: ACC=0.81 / AUC=0.87

No
CYP3A4 inhibitor?

Cytochrome P450 3A4 inhibitor: SVM model built on 7518 molecules (training set)
and tested on 2579 molecules (test set)
10-fold CV: ACC=0.77 / AUC=0.85
External: ACC=0.78 / AUC=0.86

No
Log Kp (skin permeation)?

Skin permeation: QSPR model implemented from
Potts RO and Guy RH. 1992 Pharm. Res.

-7.31 cm/s

Druglikeness

Lipinski?

Lipinski (Pfizer) filter: implemented from
Lipinski CA. et al. 2001 Adv. Drug Deliv. Rev.
MW ≤ 500
MLOGP ≤ 4.15
N or O ≤ 10
NH or OH ≤ 5

0.0
Ghose?

Ghose filter: implemented from
Ghose AK. et al. 1999 J. Comb. Chem.
160 ≤ MW ≤ 480
-0.4 ≤ WLOGP ≤ 5.6
40 ≤ MR ≤ 130
20 ≤ atoms ≤ 70

None
Veber?

Veber (GSK) filter: implemented from
Veber DF. et al. 2002 J. Med. Chem.
Rotatable bonds ≤ 10
TPSA ≤ 140

0.0
Egan?

Egan (Pharmacia) filter: implemented from
Egan WJ. et al. 2000 J. Med. Chem.
WLOGP ≤ 5.88
TPSA ≤ 131.6

0.0
Muegge?

Muegge (Bayer) filter: implemented from
Muegge I. et al. 2001 J. Med. Chem.
200 ≤ MW ≤ 600
-2 ≤ XLOGP ≤ 5
TPSA ≤ 150
Num. rings ≤ 7
Num. carbon > 4
Num. heteroatoms > 1
Num. rotatable bonds ≤ 15
H-bond acc. ≤ 10
H-bond don. ≤ 5

1.0
Bioavailability Score?

Abbott Bioavailability Score: Probability of F > 10% in rat
implemented from
Martin YC. 2005 J. Med. Chem.

0.55

Medicinal Chemistry

PAINS?

Pan Assay Interference Structures: implemented from
Baell JB. & Holloway GA. 2010 J. Med. Chem.

0.0 alert
Brenk?

Structural Alert: implemented from
Brenk R. et al. 2008 ChemMedChem

1.0 alert: heavy_metal
Leadlikeness?

Leadlikeness: implemented from
Teague SJ. 1999 Angew. Chem. Int. Ed.
250 ≤ MW ≤ 350
XLOGP ≤ 3.5
Num. rotatable bonds ≤ 7

No; 1 violation:MW<1.0
Synthetic accessibility?

Synthetic accessibility score: from 1 (very easy) to 10 (very difficult)
based on 1024 fragmental contributions (FP2) modulated by size and complexity penaties,
trained on 12'782'590 molecules and tested on 40 external molecules (r2 = 0.94)

2.28

Application In Synthesis of [ 53557-69-0 ]

* 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 [ 53557-69-0 ]

[ 53557-69-0 ] Synthesis Path-Downstream   1~21

  • 1
  • [ 53557-69-0 ]
  • [ 163133-86-6 ]
  • 2
  • [ 10132-07-7 ]
  • [ 53557-69-0 ]
  • 3
  • [ 53557-69-0 ]
  • [ 7732-18-5 ]
  • zinc dust [ No CAS ]
  • [ 163133-86-6 ]
  • 4
  • [ 53557-69-0 ]
  • [ 7664-41-7 ]
  • [ 2434-56-2 ]
  • 6
  • [ 10132-07-7 ]
  • [ 10034-85-2 ]
  • phosphonium iodide [ No CAS ]
  • [ 53557-69-0 ]
  • 7
  • [ 53557-69-0 ]
  • [ 454685-29-1 ]
  • 6-(6-morpholin-4-yl-pyridin-3-ylethynyl)-pyrimidin-4-ylamine [ No CAS ]
  • 9
  • [ 53557-69-0 ]
  • [ 926009-55-4 ]
  • 10
  • [ 5305-59-9 ]
  • [ 53557-69-0 ]
YieldReaction ConditionsOperation in experiment
70% With hydrogen iodide; sodium iodide; In water; at 70℃; for 0.5h; Description 93; 6-IodoPvrimidin-4-amine-«,; A mixture of 4-amino-6-chloropyrimidine [WO-A-0245652] (1. 00 g, 7.72 mmol), sodium iodide (5.79 g, 38.6 mmol) and 40% HI (20 ml) were heated at 70C for 30 min, then allowed to cool to room temperature. The precipitate was removed by filtration, and partitioned between dichloromethane and sat. NaHCO3. The organic layer was separated, and dried over Na2SO4, filtered, and evaporated to give the title compound (1.2 g, 70%). 1H NMR (400 MHz, DMSO-d6) 6.89 (1 H, s), 7.04 (2 H, br s), 8.04 (1 H, s).
65% With hydrogen iodide; In water; at 0 - 20℃; for 18.5h; 6-Chloropyrimidin-4-ylamine (450 mg) was added in portions to HI (57% wt. aq. , 20 mL) at 0 C. The reaction mixture was stirred for 30 minutes at 0 C and then at ambient temperature for 18 hours. The reaction mixture was treated with NaHC03 (sat. aq. ) until pH8 was achieved and then the product extracted with EtOAc (2 x 30 mL). The combined organics were washed with NaOH (2M, aq. ), dried (MgS04), filtered and then concentrated. The crude product was used directly without further purification (500 mg, 65%); lH NMR (CDCl3) ; 6.90 (s, 1H), 7.03 (s, 2H), 8.05 (s, 1H); MS m/e MHs 221.
47% With hydrogen iodide; In water; at 0 - 20℃; for 3.0h; General procedure: 2-Amino-4-chloropyrimidine (55) (13.0g, 100mmol) was added to a 57wt.% aqueous solution of hydriodic acid (115ml, 1.00mol) at 0C and the mixture was stirred at room temperature for 3h. The mixture was cooled to 0C and the resulting precipitate was removed by filtration and taken up in cold 5N aqueous Na2CO3 (200ml). The mixture was extracted with EtOAc (3×500ml) and the combined organic layers were concentrated under reduced pressure to deliver 2-amino-4-iodopyrimidine (21.1g, 95.0mmol, 95% yield) as a white solid.
  • 11
  • [ 53557-69-0 ]
  • [ 15936-10-4 ]
  • [ 852061-96-2 ]
YieldReaction ConditionsOperation in experiment
3% Description 94; 6-(1 8-Naphthyridin-2-yl) pvrimidin-4-amine; To a mixture of Description 92 (2.52 g, 15. 3 mmol), hexamethylditin (5.0 g, 15.3 mmol), lithium chloride (1.95 g, 45.9 mmol), and copper (I) iodide (291 mg, 1.53 mmol) in anhydrous 1,4-dioxane (50 ml) was added Pd (PPh3) 4 (884 g, 0.77 mmol). The mixture was de-gassed three times, and heated at 100C overnight. The mixture was cooled and diluted with EtOAc (120 ml) and washed with a 10% potassium fluoride solution (200 ml). The organic layer was washed with sat. NaCl (50 ml), dried over Na2SO4, filtered, and evaporated. The residue was taken up in anhydrous 1,4-dioxane (75 ml), and Description 93 (1.55 g, 7 mmol), lithium chloride (1.78 g, 42 mmol), and copper (I) iodide (266 mg, 1.4 mmol) added, followed by Pd (PPh3) 4 (808 mg, 0.7 mmol). The mixture was de-gassed 3 times and heated at 100C for 3 days. The mixture was poured into water (200 ml), and extracted with EtOAc (2 x 100 ml), the combined EtOAc layers were washed with water (150 ml), sat. NaCl (100 ml), dried over Na2SO4, filtered and evaporated. The residue was purified by column chromatography on silica (eluent: 2% MeOH in DCM + 0.5% NH40H) to give the title compound (100 mg, 3%).'H NMR (360 MHz, DMSO-d6) 7.18 (2 H, br s), 7.66-7. 86 (3 H, m), 8.55 (1 H, dd, J 8.1 and 1. 8), 8. 58 (1 H, d, J4. 2), 8.64 (1 H, d, J8. 4), 9.16 (1 H, dd, J4. 2 and 2.1).
  • 12
  • [ 53557-69-0 ]
  • [ 1553982-63-0 ]
  • [ 1553982-05-0 ]
YieldReaction ConditionsOperation in experiment
With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; sodium carbonate; In 1,4-dioxane; at 20 - 110℃; for 1.0h;Inert atmosphere; Step 2: 5-(6-Aminopyrimidin-4-yl)-2-(5-chloro-2-methylphenyl)-1-[2-(trimethylsilyl)ethoxy]methyl}-1H-pyrrole- 3-carbonitrile (VI)Into a 50 mL round bottom flask equipped with a stir bar, condenser and 3-way valve connected to argon and vacuum 2-(5-chloro-2-methylphenyl)-5-(4,4,5,5-tetramethyl-1 ,3,2-dioxaborolan-2-yl)-1-[2-(trimethylsilyl)ethoxy] methyl}-1 H-pyrrole-3-carbonitrile coming from the previous step, <strong>[53557-69-0]6-iodopyrimidin-4-amine</strong> (740 mg, 3.35 mmol), 2M Na2C03 (3.35 mL, 6.70 mmol) and dioxane (22 mL) were charged at room temperature. The resulting reaction mixture was degassed three times back filling with argon each time before being charged PdC (dppf) (182 mg, 0.223 mmol). The resulting reaction mixture was degassed four times back filling with argon each time and then warmed to 110 C for 1 h. The reaction mixture was cooled to room temperature, filtered through a pad of Celite, washed with EtOAc, and the filtrate was concentrated and then diluted with EtOAc (30 mL) and water (10 mL). The two layers were separated, and the aqueous layer was extracted with EtOAc (25 mL). The combined organic fractions were washed with aqueous brine (2 x 20 mL), dried over a2S04, filtered and concentrated under reduced pressure. The residue was purified by Biotage SP1 Flash Chromatography (DCM/MeOH/7N NH3in MeOH 97/2/1) to afford the title compound (343 mg, 35%, 2 steps)..
  • 13
  • [ 53557-69-0 ]
  • [ 1553982-08-3 ]
  • [ 1553982-11-8 ]
YieldReaction ConditionsOperation in experiment
With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; caesium carbonate; In 1,4-dioxane; water;Inert atmosphere; Step 2: 5-(6-Aminopyrimidin -yl)-2-(5-chloro-2-ethylphenyl)-1-(phenylsulfonyl)-1 H^yrrole-3-carbon (VI) 2-(5-Chloro-2-ethylphenyl)-1-(phenylsulfonyl)-5-(4,4,5,5-tetramethyl-1 ,3,2-dioxaborolan-2-yl)-1 - -pyrrole-3-carbonitrile (2.77 mmol), <strong>[53557-69-0]6-iodopyrimidin-4-amine</strong> (918 mg, 4.16 mmol), PdCI2(dppf) (226 mg, 0.277 mmol) and Cs2C03(2.71 g, 8.31 mmol) were degassed and back filled with argon and then dissolved in dioxane (20 mL) and water (4 mL) under nitrogen. The reaction mixture was stirred at room temperature over night, then diluted with EtOAc, washed with aqueous brine, dried over Na2S04, filtered and concentrated under reduced pressure. The residue was purified by Biotage SP1 Flash Chromatography (DCM/MeOH/NH37 N in MeOH 95/5/0.5) to afford the title compound (540 mg, 39%, 2 steps).1H NMR (600 MHz, DMSO-d6) delta 8.45 (d, J = 0.92 Hz, 1 H), 7.82 (t, J = 7.42 Hz, 1 H), 7.71 - 7.78 (m, 1 H), 7.59 - 7.63 (m, 1 H), 7.56 (dd, J = 2.29, 8.33 Hz, 1 H), 7.39 (d, J = 8.43 Hz, 1 H), 7.11 (br. s., 1 H), 7.09 (s, 1 H), 6.83 (d, J = 2.20 Hz, 1 H), 6.64 (d, J = 1.10 Hz, 1 H), 2.03 - 2.24 (m, 2H), 1.01 (t, J = 7.60 Hz, 3H).HRMS (ESI) m/z calcd for C23H18N502SCI + H+464.0943, found 464.0938.
  • 14
  • [ 53557-69-0 ]
  • [ 1553982-12-9 ]
  • [ 1553982-14-1 ]
YieldReaction ConditionsOperation in experiment
With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; sodium carbonate; In 1,4-dioxane; water; at 20℃;Inert atmosphere; Step 5: Ethyl 5-(6-aminopyrimidin-4-yI)-2-phenyl)-1 -(phenylsulfonyl)-1 H-pyrrole-3-carboxylate (IX) Ethyl 2-phenyl-1 -(phenylsulfonyl)-5-(4,4,5,5-tetramethyl-1 ,3,2-dioxaborolan-2-yl)-1 H-pyrrole-3-carboxylate (1.24 mmol), <strong>[53557-69-0]6-iodopyrimidin-4-amine</strong> (411 mg, 1.86 mmol), Pd012(dppf) (101 mg, 0.124 mmol) and Na2003 (394 mg, 372 mmo) were degassed and back fWed wfth argon and then dssoved n doxane (12 mL) and water (1.9 mL) under nftrogen. The reaction mixture was stirred at room temperature over night, then diluted with EtOAc, washed withaqueous brine, dried over Na2SO4, filtered and concentrated under reduced pressure. The residue was purified byBiotage SP1 Elash Chromatography (DCM/MeOH/NH3 7 N in MeOH 95/5/0.5) to afford the title compound (240 mg,43%, 2 steps).1H NMR (600 MHz, DMSO-d6) 8.42 (d, J= 1.1 Hz, 1H), 7.72 (quin, J= 4.3 Hz, 1H), 7.48-7.53 (m, 4H), 7.37-7.44 (m, 1 H), 7.26 (t, J = 7.7 Hz, 2H), 7.00 (s, 2H), 6.96 (dd, J = 1.2, 8.1 Hz, 2H), 6.82 - 6.86 (m, 1 H), 6.67 - 6.70 (m, 1 H),3.95 (q, J = 7.0 Hz, 2H), 0.87 - 1.01 (m, 3H).HRMS (ESI) m/z calcd for C23H20N404S + H 449.1278, found 449.1273.
  • 15
  • [ 53557-69-0 ]
  • [ 1553982-19-6 ]
  • [ 1553974-20-1 ]
YieldReaction ConditionsOperation in experiment
With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; sodium carbonate; In 1,4-dioxane; at 20 - 110℃; for 1.0h; Step 9: 4-(6-Aminopyrimidin-4-yl)-1-(5-chloro-2-methylphenyl)-1 H-pyrrole-2-carbonitrilento a 50 mL round bottom flask equpped wfth a stir bar, condenser and 3-way vave connected to argon and vacuum 1 -(5-chloro-2-methylphenyl)-4-(4,4,5,5-tetramethyl-1 ,3,2-dioxaborolan-2-yl)-1 H-pyrrole-2-carbonitrile coming from the previous step, <strong>[53557-69-0]6-iodopyrimidin-4-amine</strong> (663 mg, 3.0 mmol), 2M Na2003 (3.0 mL, 6.0 mmol) and dioxane (20 mL) were charged at room temperature. The resuWng reacton mixture was degassed three times back fAhng wfthfour times back flWng wfth argon each time and then warmed to 110 C for 1 h. The reacton mixture was coo?ed to room temperature, fUtered through a pad of Cehte, washed wfth EtOAc, and the fUtrate was concentrated and then dUuted wfth EtOAc and water. The two ayers were separated, and the aqueous ayer was extracted wfth EtOAc, The combned organic fractions were washed wfth aqueous brne, dried over Na2SO4, fNtered and concentrated under reduced pressure. The residue was purified by Biotage SP1 Elash Chromatography (DCM/MeOH/7N NH3 n MeOH95/5/05) to afford the tfte compound (291 mg, 47%, 2 steps).1H NMR (400 MHz, DMSO-d6) 8.33 (d, J = 0.98 Hz, 1 H), 7.96 (d, J = 1.7 Hz, 1 H), 7.64 - 7.69 (m, 2H), 7.55 - 7.61(m, 1H), 7.50-7.54 (m, 1H), 6.81 (s, 2H), 6.65 (d, J = 1.1 Hz, 1H), 2.10 (s, 3H).HRMS (ESI) m/z calcd for C16H12C1N5 + H 310.0854, found 310.0858.
  • 16
  • [ 53557-69-0 ]
  • [ 1553982-65-2 ]
  • [ 1553982-30-1 ]
YieldReaction ConditionsOperation in experiment
40% With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; sodium carbonate; at 110℃; for 0.5h;Inert atmosphere; Step 12: Ethyl 5-(6-aminopyrimidin-4-yI)-3-(5-chloro-2-methylphenyl)-1-(phenylsulfonyl)-1 H-pyrrole-2-carboxylate (XVII) Ethyl 3-(5-chloro-2-methylphenyl)-1 -(phenylsulfonyl)-5-(4,4,5,5-tetramethyl-1 ,3,2-dioxaborolan-2-yI)-1 H-pyrrole-2-carboxylate, <strong>[53557-69-0]6-iodopyrimidin-4-amine</strong> (221 mg, 1 mmol) and Na2003 (318 mg, 3 mmol) were dissolved indioxane/water (3/1, 10 mL), The resulting reaction mixture was degassed three times back filling with argon eachtime before being charged PdCI2(dppf) (81 mg, 0.1 mmol). The resulting reaction mixture was degassed four timesback filling with argon each time and then warmed to 110 00 for 30 mm. The reaction mixture was cooled to roomtemperature, filtered through a pad of Celite, washed with EtOAc. The filtrate was concentrated and then diluted withEtOAc, washed with aqueous brine, dried over Na2SO4, filtered and concentrated under reduced pressure. Theresidue was purified by by Biotage SP1 Flash Chromatography (DCM/MeOH/7N NH3 in MeOH 98/2/0.2) to afford thetitle compound (198 mg, 40%).1H NMR (600 MHz, DMSO-d6) 8.23 - 8.30 (m, 3H), 7.77 - 7.83 (m, 1 H), 7.66 - 7.73 (m, 2H), 7.33 - 7.37 (m, 1 H),7.29 - 7.32 (m, 1 H), 7.17 (d, J = 2.20 Hz, 1 H), 7.04 (s, 2H), 6.76 (s, 1 H), 6.63 (d, J = 0.92 Hz, 1 H), 3.99 -4.10 (m,2H), 2.11 (s, 3H), 0.90 (t, J = 7.11 Hz, 3H).HRMS (ESI) m/z calcd for C24H21C1N404S + H 497.1045, found 497.1049.
  • 17
  • [ 53557-69-0 ]
  • [ 1553982-56-1 ]
  • [ 1553982-59-4 ]
YieldReaction ConditionsOperation in experiment
220 mg With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; sodium carbonate; In 1,4-dioxane; water; at 110℃; for 2.0h;Inert atmosphere; Step 16: tert-Butyl 4-(6-aminopyrimidin-4-yI)-2-(5-chloro-2-methylphenyl)-1 H-pyrrole-1 -carboxylate (XXI) The crude tert-butyl 2-(5-chloro-2-methylphenyl)-4-(4,4,5,5-tetramethyl-1 ,3,2-dioxaborolan-2-yl)-1 H-pyrrole-1 -carboxylate (392 mg, 0.94 mmol), Na2003 (250 mg, 2.36 mmol), PdC2(dppf) (77 mg, 0.094 mmol) and <strong>[53557-69-0]6-iodopyrimidin-4-amine</strong> (311 mg, 1.41 mmol) were degassed and purged with argon and suspended in degassed 1,4-dioxane (3 mL) and water (1 mL). The reaction mixture was heated to 110 00 (oil bath temperature) for 2 h. Thesolution was diluted with EtOAc and washed with water. After drying over anhydrous Na2SO4, the organic layer was evaporated. The crude was purified by chromatography on silica gel (hexane/EtOAc 8:2) providing the title compound (220 mg, 58%).1H NMR (600 MHz, DMSQ-d6) 8.55 (s, 1 H), 7.79 (s, 1H), 7.41 (d, 1H), 7.29 (d, 1H), 7.16 (m, 1H), 6.98 (s, 1H),6.66 (s, 1H), 2.30 (s, 3H), 1.44 (s, 9H).
  • 18
  • [ 557-21-1 ]
  • [ 53557-69-0 ]
  • [ 1353100-84-1 ]
YieldReaction ConditionsOperation in experiment
88% With tetrakis(triphenylphosphine) palladium(0); In 1-methyl-pyrrolidin-2-one; at 80℃; for 2.0h;Inert atmosphere; General procedure: A flask containing a solution of 55-iodide (4.09g, 18.5mmol) in NMP (75ml) was purged with argon for 5min. Zinc cyanide (2.28g, 19.4mmol) and tetrakis(triphenylphosphine)palladium (0) (1.71g, 1.48mmol) were added and the mixture was stirred at 80C for 2h. The mixture was cooled to room temperature, EtOAc (200ml) and 30% aqueous NH4OH (200ml) was added, and stirring was continued for 1h. The layers were separated, the aqueous layer was extracted with EtOAc (4×200ml), and the combined organic layers were concentrated under reduced pressure. Et2O (30ml) was added and the precipitate was collected by filtration and washed with Et2O to deliver 2-aminopyrimidine-4-carbonitrile (1.66g, 13.8mmol, 75% yield) as a white solid.
  • 19
  • [ 1159818-57-1 ]
  • [ 53557-69-0 ]
YieldReaction ConditionsOperation in experiment
With hydrogen iodide; sodium iodide; at 20℃; for 48.0h; To a solution of 6-bromopyrimidin-4-amine (4.17 g, 24 mmol) in 100 mL of HI was added Nal (14.4 g, 96 mmol). The mixture was stirred at ambient temperature for 2 days. Then, the mixture was adjusted to pH=10 with NaOH solution, and the solid was separated and filtered to give 6-iodopyrimidin-4- amine. H NMR (400Mz, DMSO-c/6) delta (ppm): 6.85 (s, 1 H), 6.99(s, 2 H), 7.99 (s, 1 H).
With hydrogen iodide; sodium iodide;Reflux; To a solution of 6-bromopyrimidin-4-amine (8.0 g, 46 mmol) in 100 mL of HI was added Nal (15.0 g, 100 mmol). The mixture was refluxed overnight. Then, the mixture was adjusted to pH=10 with NaOH solution, and the solid was separated and filtered to give 6-iodopyrimidin-4-amine. 1H NMR (400Mz, DMSO-d6) 56.85 (s, 1 H), 6.99(s, 2H), 7.99 (s, 1 H).
  • 20
  • [ 53557-69-0 ]
  • C14H9CuF5N2 [ No CAS ]
  • 6-(1,1,2,2,2-pentafluoroethyl)pyrimidin-4-amine [ No CAS ]
YieldReaction ConditionsOperation in experiment
In N,N-dimethyl-formamide; at 90℃; for 2.0h; To a solution of <strong>[53557-69-0]6-iodopyrimidin-4-amine</strong> (442 mg, 2 mmol) in 5 mL of DMF was added (Phen)CuCF2CF3 (1.14 g, 3 mmol, purchased from Aspira scientific). The mixture was stirred at 90 C for 2 hours. Then, the mixture was poured into water and extracted with ethyl acetate. The combined organic layers were dried over sodium sulfate, filtered and concentrated under vacuum. The crude product was purified by column chromatography on silica gel to give 6-(1 , 1 ,2,2,2- pentafluoroethyl)pyrimidin-4-amine. H NMR (400Mz, DMSO-c/6) delta (ppm): 6.80 (s, 1 H), 7.50(s, 2 H), 8.47 (s, 1 H). 9F-NMR (300Mz, DMSO-c/6) delta: -79.41 (s, 3 F), -1 16.10 (s, 2 F); ESI-MS(+): 214(M+1 ), ESI-MS(-): 212(M-1 ).
  • 21
  • [ 53557-69-0 ]
  • (1,1,2,2,2-pentafluoroethyl)(1,10-phenanthroline-κΝ1,κN10)-copper [ No CAS ]
  • 6-(1,1,2,2,2-pentafluoroethyl)pyrimidin-4-amine [ No CAS ]
YieldReaction ConditionsOperation in experiment
In N,N-dimethyl-formamide; at 90℃;Inert atmosphere; <strong>[53557-69-0]6-iodopyrimidin-4-amine</strong> (prepared as described in WO 2016071214, 5.83 g, 26.4 mmol) and (1,1,2,2,2Pentafluoroethy)(1,1OphenanthroNneKN1,KN1O)copper (15.1 g, 39.6 mmol) was suspended in dimethylformamide (95.0 mL) in a dried vial under argon. The resulting mixture was heated to 90C over night. The reaction mixture was cooled down to room temperature and filtered over Celite. The filter cake was rinsed with ethyl acetate and the resulting green suspension was washed with aqueous saturated sodium bicarbonate and ammonium hydroxide solution, and then brine. Drying over sodiumsulfate, filtration and concentration in vacuo gave the crude product which was purified by chromatography over silica gel to afford 6-(1,1,2,2,2-pentafluoroethyl)pyrimidin-4-amine. LC-MS: 214 (M+H), Rt: 0.67 min, 1H NMR (400 MHz, Chloroform) delta ppm 5.41 (br s, 2 H) 6.82 (d, J=1 .10 Hz, 1 1-1) 8.71 (s, 1 H)
 

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