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CAS No. : | 696-45-7 | MDL No. : | MFCD00129983 |
Formula : | C5H7N3O | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | VELRBZDRGTVGGT-UHFFFAOYSA-N |
M.W : | 125.13 | Pubchem ID : | 735731 |
Synonyms : |
|
Num. heavy atoms : | 9 |
Num. arom. heavy atoms : | 6 |
Fraction Csp3 : | 0.2 |
Num. rotatable bonds : | 1 |
Num. H-bond acceptors : | 3.0 |
Num. H-bond donors : | 1.0 |
Molar Refractivity : | 32.93 |
TPSA : | 61.03 Ų |
GI absorption : | High |
BBB permeant : | No |
P-gp substrate : | No |
CYP1A2 inhibitor : | No |
CYP2C19 inhibitor : | No |
CYP2C9 inhibitor : | No |
CYP2D6 inhibitor : | No |
CYP3A4 inhibitor : | No |
Log Kp (skin permeation) : | -6.84 cm/s |
Log Po/w (iLOGP) : | 1.32 |
Log Po/w (XLOGP3) : | 0.31 |
Log Po/w (WLOGP) : | 0.08 |
Log Po/w (MLOGP) : | -0.9 |
Log Po/w (SILICOS-IT) : | 0.2 |
Consensus Log Po/w : | 0.2 |
Lipinski : | 0.0 |
Ghose : | None |
Veber : | 0.0 |
Egan : | 0.0 |
Muegge : | 1.0 |
Bioavailability Score : | 0.55 |
Log S (ESOL) : | -1.24 |
Solubility : | 7.23 mg/ml ; 0.0578 mol/l |
Class : | Very soluble |
Log S (Ali) : | -1.15 |
Solubility : | 8.77 mg/ml ; 0.0701 mol/l |
Class : | Very soluble |
Log S (SILICOS-IT) : | -1.38 |
Solubility : | 5.24 mg/ml ; 0.0419 mol/l |
Class : | Soluble |
PAINS : | 0.0 alert |
Brenk : | 0.0 alert |
Leadlikeness : | 1.0 |
Synthetic accessibility : | 1.86 |
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: |
* 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 |
---|---|---|
40% | With pyridine; In dichloromethane; at 50℃; for 14h; | To the mixture of 5-nitro-furan-2-carbonyl chloride (667 mg, 3. 8 MMOL) in CH2CI2 (5 ML) was added 4-amino 6-methoxy pyrimidine (475 mg, 3. 8 MMOL) followed by pyridine (5 ML) and reaction was stirred for 14 hr. at 50°C. The reaction was followed as explained in method 2 to yield 550 mg (40percent) of compound 51. TLC: Rf 0. 53 (1: 1 hexane: ethyl acetate).'HNMR (500 MHz, CDCI3) : No.4. 04 (3H, s), 7.44 (2H, q, J = 4.04, 8. 06 Hz), 7.65 (1 H, d, J = 0.97 Hz), 8.58 (1H, d, J = 0. 98 Hz), 8.85 (1H, s); CNMR (300 MHZ, CDCIG) : 53.77, 95.60, 111.79, 117.34, 145.98, 154.13, 156.21, 170.80 ; EI-Mass : 263 (M+-1) ; IR : 1576,1684, 3123 cm-1. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
2-(6-Methoxy-pyrimidin-4-ylamino)-thiazole-5-carbonitrile (22-11) A flame dried flask under argon gas was charged with sodium hydride (39mg, 60percent dispersion, 0.97 mmol) and 2 mL anhydrous TBF. 6-Methoxy-pyrimidin-4-ylamine (55 mg, 0.44 mmol) was added slowly followed, after 10 minutes, by the addition of <strong>[51640-36-9]2-chloro-thiazole-5-carbonitrile</strong> (76 mg, 0.53 mmol). After 1 hour, the reaction was diluted with water and adjusted to pH 7 with 1M HCl (aq). The resulting precipitate was filtered, washed with water and air dried. The resulting solid triturated with ether, sonucated, filtered and washed with ether. 1H-NMR (400 MHz, DMSO-d6) 12.40 (s, 1H), 8.68 (1H,s), 8.31 (1H,s), 6.42 (1H,s), 3.92 (s, 3H). M+1=234.2. mp 246-248. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With triethylamine; In dichloromethane; | Example 228 N-(6-Methoxypyrimidin-4-yl)-5-(5,6-dimethoxy-3-methyl-1,4-benzoquinon-2-yl)methyl-2-acetoxybenzamide 4-Amino-6-methoxypyrimidine (0.134 g, 1.070 mmol), triethylamine (0.141 g, 1.390 mmol) and <strong>[37091-73-9]2-chloro-1,3-dimethylimidazolinium chloride</strong> (0.118 g, 0.695 mmol) were added to a methylene chloride solution (100 ml) of 5-(5,6-dimethoxy-3-methyl-1,4-benzoquinon-2-yl)methyl-2-acetoxybenzoic acid (0.200 g, 0.535 mmol) and the resulting solution was stirred at room temperature for 10 hours. The reaction solution was poured into ice water and then extracted with methylene chloride. The extract was washed with water and then dried, and the solvent was removed by distillation. The obtained residue was purified by preparative thin-layer chromatography (chloroform: methanol = 10:1) to obtain the titled compound (0.120 g, 0.249 mmol, 47percent). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
9% | In acetic acid; at 180℃; for 4h; | A mixture of <strong>[696-45-7]4-amino-6-methoxypyrimidine</strong> (68 mg, 0.54 mmoles) and (5Z)-2-(methylthio)-5-(6-quinolinylmethylidene)-1 ,3-thiazol-4(5H)-one (111 mg, 0.39 mmoles) in acetic acid (1.OmL) was sealed in a pressure flask and heated at 1800C for 4.0 hours. When cool, the mixture was diluted with ethanol, the solid collected, slurried in boiling ethanol to give the title compound (13 mg, 9percent). 1 H NMR (400 MHz, DMSO-Gf6) delta ppm 3.96 (S1 3 H) 7.64 (dd, J=8.34, 4.04 Hz, 1 H) 7.88 (s, 1 H) 8.02 (dd, J=8.84, 2.02 EPO <DP n="59"/>Hz, 1 H) 8.18 (d, J=8.84 Hz, 1 H) 8.31 (d, J=1.77 Hz, 1 H) 8.50 (d, J=7.58 Hz, 1 H) 8.80 (s, 1 H) 8.99 (dd, J=4.29, 1.77 Hz, 1 H) 12.56 (s, 1 H) |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; at 70℃; for 4h; | Example 12; 4-(3-fluoro-4-[3-('6-methoxypyrimidin-4-vpiureido1prienoxy>pyridine-2-carboxylic acid methylamide; A solution of 6-amino-4-methoxypyrimidine (50.0 mg; 0.39 mmol), triphosgene (43.0 mg; 0.14 mmol) and diisopropylethylamine (60.7 mg; 0.47 mmol) in THF (2.0 ml_) was heated at 7O0C for 4 h. A solution of 4-(4-amipio-3-fluoro-phenoxy)-pyridipie-2- carboxylic acid methylamide (102.3 mg; 0.39 mmol) in DMF (1.0 ml_) was then <n="52"/>added, and the reaction mixture was heated at 7O0C for another 8 h, then extracted between EtOAc and' saturated aqueous NaHCO3. The organic layer was dried and evaporated to give a crude oil that was purified via HPLC to give the title compound (14 mg, 9percent). 1H-NMR (CD3OD) delta 8.36 (s, 1H), 8.35 (S1 1 H)1 8.14 (t, J = 8.8 Hz, 1 H), 7.46 (d, J = 2.4 Hz, 1 H), 7.00-6.86 (m, 3H)1 6.60 (s, 1 H), 3.86 (s, 3H). 2.83 (S1 3H); LC-MS m/z 413 [M+Hf. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
7.02 g | With pyridine; In N,N-dimethyl-formamide; acetonitrile; at 20℃; for 0.75h;Cooling with ice; | [0247] Compound (17) (4.51 g, 36 mmol) was dissolved in acetonitrile (45 ml), and pyridine (3.20 ml, 39.6 mmol) and phenyl chloroformate (5.00 ml, 39.6 mmol) were added under ice-cooling. Dimethylformamide (9 ml) and acetonitrile (30 ml) were added and stirred at room temperature for 45 minutes. The precipitate in the reaction solution was collected by filtration, washed with cold methanol and water and dried in vacuo to give a target compound (18) (7.02 g) as a white solid. [0248] 1H-NMR (CDCl3) delta 8.61 (1H, s), 7.43 (2H, t, J=7.8 Hz), 7.41 (1H, s), 7.29 (1H, t, J=7.8 Hz), 7.21 (2H, d, J=7.8 Hz), 3.97 (3H, s). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
54% | In dichloromethane; at 20℃; for 18h; | Step A: 4-Isothiocyanato-6-methoxypyrimidine To a bright orange solution of 1,1'-thiocarbonyldipyridin-2(1H)-one (1.86 g, 7.99 mmol) in dichloromethane at room temperature was added <strong>[696-45-7]6-methoxypyrimidin-4-amine</strong> (1 g, 8 mmol). The orange solution was stirred at room temperature for 18 hours. The LC/MS showed the desired product as one of the major peaks. The deep orange solution was concentrated and the remaining residue was filtered. The filtrate was purified by silica gel chromatography (10-50percent ethyl acetate/hexanes) to afford 4-isothiocyanato-6-methoxypyrimidine (0.72 g, 4.3 mmol, 54percent yield) as a yellow oil. 1H NMR (400 MHz, DMSO-d6) delta ppm 8.49 (1H, d, J=5.79 Hz), 6.95 (1H, d, J=5.79 Hz), 3.92 (3H, s). MS (LC/MS) R.T.=3.15; [M+H]+=168.1. |
54% | In dichloromethane; at 20℃; for 18h; | EXAMPLE 13; (3R,4R)-N-(6-Methoxypyrimidin-4-yi)-4'H-l-azaspiro[bicycio[2.2.1 J heptane-.oxazol -2 '-amine; Step A: 4-Isothiocyanato-6-meth; To a bright orange solution of l, l'-thiocarbonyldipyridin-2(lH)-one (1.86 g, 7.99 mmol) in dichloromethane at room temperature was added 6-methoxypyrimidin- 4-amine (1 g, 8 mmol). The orange solution was stirred at room temperature for 18 hours. The LC/MS showed the desired product as one of the major peaks. The deep orange solution was concentrated and the remaining residue was filtered. The filtrate was purified by silica gel chromatography (10-50percent ethyl acetate/hexanes) to afford 4-isothiocyanato-6-methoxypyrimidine (0.72 g, 4.3 mmol, 54 percent yield) as a yellow oil. XH NMR (400 MHz, DMSO-i3/4) delta ppm 8.49 (1 H, d, J=5.79 Hz), 6.95 (1 H, d, J=5.79 Hz), 3.92 (3 H, s). MS (LC/MS) R.T. = 3.15; [M+H]+ = 168.1. |
54% | In dichloromethane; at 20℃; for 18h; | Step A: 4-Isothiocyanato-6-methoxypyrimidineTo a bright orange solution of l, l'-thiocarbonyldipyridin-2(lH)-one (1.86 g, 7.99 mmol) in dichloromethane at room temperature was added 6-methoxypyrimidin- 4-amine (1 g, 8 mmol). The orange solution was stirred at room temperature for 18 hours. The LC/MS showed the desired product as one of the major peaks. The deep orange solution was concentrated and the remaining residue was filtered. The filtrate was purified by silica gel chromatography (10-50percent ethyl acetate/hexanes) to afford 4-isothiocyanato-6-methoxypyrimidine (0.72 g, 4.3 mmol, 54 percent yield) as a yellow oil. XH NMR (400 MHz, DMSO-i3/4) delta ppm 8.49 (1 H, d, J=5.79 Hz), 6.95 (1 H, d, J=5.79 Hz), 3.92 (3 H, s). MS (LC/MS) R.T. = 3.15; [M+H]+ = 168.1. |
54% | In dichloromethane; at 20℃; for 18h; | To a bright orange solution of 1,1'-thiocarbony1dipyridin-2(1H)-one (1.86 g, 7.99 mmo1) in dichloromethaneat room temperature was added 6-methoxypyrimidin-4amine(1 g, 8 mmo1). The orange solution was stirred at roomtemperature for 18 hours. The LC/MS showed the desiredproduct as one of the major peaks. The deep orange solutionwas concentrated and the remaining residue was filtered. Thefiltrate was purified by silica gel chromatography (10-50percentethyl acetate/hexanes) to afford 4-isothiocyanato-6-methoxypyrimidine(0.72 g, 4.3 mmol, 54percent yield) as a yellow oil. |
In dichloromethane; at 20℃; for 2h; | General procedure: Isoquinolin-3-amine (3.23 g, 22.4 mmol) was added to a solution of 1,1'-thiocarbonyldipyridin-2(1H)-one (5.20 g, 22.4 mmol) in dichloromethane (50 mL) at room temperature. The reaction was stirred for 2 h, then purified by flash chromatography on silica gel (0-10percent ethyl acetate in hexanes). Product fractions were combined and concentrated in vacuo to give 3-isothiocyanatoisoquinoline(3.9 g, 93 percent) as a white solid. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In methanol; at 70℃; for 18h; | A solution of N-benzylidene-<strong>[696-45-7]6-methoxypyrimidin-4-amine</strong> in methanol was prepared by heating a solution of benzaldehyde (0.100 mL; 0.987 mmol) and <strong>[696-45-7]6-methoxypyrimidin-4-amine</strong> (0.165 g; 1.319 mmol) in methanol (1 mL) at 70 °C for 18 h. The formation of the imine was quantitative and the solution was used without further purification. ESI/APCI(+): 214 (M+H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
53% | A pressure tube was charged with a solution of CDI (75.5 mg, 0.47 mmol) in dioxane (2 mL). A solution of 2-methyl-6-(2-(trifluoromethyl)phenyl)imidazo[1,2-b]pyridazine-3-carboxylic acid (100.0 mg, 0.31 mmol) in dioxane: DMA (1:1, 2 mL) was added and the mixture was heated to 100 °C for 15 h. <strong>[696-45-7]6-methoxypyrimidin-4-amine</strong> (117.0 mg, 0.93 mmol) was then added and the heating was continued for 3 d. After cooling to room temp, H2O was added and suspension was extracted with CH2Cl2. The crude material was purified by column chromatography (0-5percent CH2Cl2+MeOH) to afford N-(2- methoxypyrimidin-4-yl)-2-methyl-6-(2-(trifluoromethyl)phenyl)imidazo[1,2-b]pyridazine-3-carboxamide (71.0 mg, 53percent). MS (ESI) calcd for C20H15F3N6O2: 428.1; found: 429.1 [M+H] | |
53% | A pressure tube was charged with a solution of CDI (75.5 mg, 0.47 mmol) in dioxane (2 mL). A solution of 2-methyl-6-(2-(trifluoromethyl)phenyl)imidazo[1,2-b]pyridazine-3-carboxylic acid (100.0 mg, 0.31 mmol) in dioxane: DMAC(1:1, 2 mL) was added and the mixture was heated to 100 °C for 15 h. <strong>[696-45-7]6-methoxypyrimidin-4-amine</strong> (117.0 mg, 0.93 mmol) was then added and the heating was continued for 3 d. After cooling to room temp, H2O was added and suspension was extracted with CH2Cl2. The crude material was purified by column chromatography (0-5percent CH2Cl2+MeOH) to afford N-(2-methoxypyrimidin-4-yl)-2-methyl-6-(2-(trifluoromethyl)phenyl)imidazo [1,2-b]pyridazine-3-carboxamide (71.0 mg, 53percent). MS (ESI) calcd for C20H15F3N6O2: 428.1; found: 429.1 [M+H]. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Example 67 (3S)-2-(2R)-3-Cyclopentyl-2-[formyl(hydroxy)amino]methyl}propanoyl)-N-[6-(methyloxy)-4-pyrimidinyl]-3-pyrazolidinecarboxamide 6-(methyloxy)-4-pyrimidinamine (38.4 mg, 0.307 mmol). MS (ES+) m/z 420.8 (MH+). 1H NMR (400 MHz, METHANOL-d4) delta ppm 1.05-1.22 (m, 2H) 1.40 (dd, J=12.63, 6.57 Hz, 1H) 1.46-1.66 (m, 4H) 1.66-1.96 (m, 4H) 2.14-2.30 (m, 1H) 2.42-2.57 (m, 1H) 2.83-2.98 (m, 1H) 3.18-3.29 (m, 1H) 3.49 (dd, J=14.02, 4.42 Hz, 1H) 3.59-3.84 (m, 1H) 3.84-4.00 (m, 4H) 4.62-4.74 (m, 1H) 7.46 (s, 1H) 7.85 (s, 0.7H) 8.25 (s, 0.3H) 8.44 (s, 1H) | ||
Example 67 (3S)-2-((2R)-3-Cyclopentyl-2-[formyl(hydroxy)amino]methyl}propanoyl)-N-[6-(methyloxy)-4-pyrimidinyl]-3-pyrazolidinecarboxamide 6-(methyloxy)-4-pyrimidinamine (38.4 mg, 0.307 mmol). MS (ES+) m/z 420.8 (MH+). 1H NMR (400 MHz, METHANOL-d4) delta ppm 1.05-1.22 (m, 2H) 1.40 (dd, J=12.63, 6.57 Hz, 1H) 1.46-1.66 (m, 4H) 1.66-1.96 (m, 4H) 2.14-2.30 (m, 1H) 2.42-2.57 (m, 1H) 2.83-2.98 (m, 1H) 3.18-3.29 (m, 1H) 3.49 (dd, J=14.02, 4.42 Hz, 1H) 3.59-3.84 (m, 1H) 3.84-4.00 (m, 4H) 4.62-4.74 (m, 1H) 7.46 (s, 1H) 7.85 (s, 0.7H) 8.25 (s, 0.3H) 8.44 (s, 1H) |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
A sealed tube was charged with <strong>[696-45-7]6-methoxypyrimidin-4-amine</strong> (23 mg, 0.19 mmol), methyl (1S, K or lR,45)-4-[5-(6-bromo-4-methylpyridin-2-yl)-l,3-thiazol-2-yl]-4- hydroxy-2,2-dimethylcyclohexanecarboxylate (80 mg, 0.18 mmol), XantPhos (16 mg, 0.03 mmol), cesium carbonate (119 mg, 0.36 mmol), and palladium(II) acetate (4 mg, 0.02 mmol). The vial was evacuated and backfilled with argon (3x). Fully degassed dioxane (0.7 mL) was added, the tube was sealed, and stirred at 90 °C overnight. The reaction was then cooled to room temperature, diluted with methanol, and absorbed onto 1.2 g of silica. Purification via silica gel chromatography (ethyl acetate/hexanes) afforded a 6: 1 mixture of (1R,4,S or lR,45)-l-(5-{6-[(6- methoxypyrimidin-4-yl)amino]-4-methylpyridin-2-yl} -l,3-thiazol-2-yl)-5,5-dimethyl-2- oxabicyclo[2.2.2]octan-3-one : methyl (15",4R or lR,45)-4-hydroxy-4-(5- {6-[(6- methoxypyrimidin-4-yl)amino]-4-methylpyridin-2-yl} -l,3-thiazol-2-yl)-2,2- dimethylcyclohexanecarboxylate.; A 6: 1 mixture of (\R,4S or lR,45)-l-(5- {6-[(6-methoxypyrimidin-4- yl)amino]-4-methylpyridin-2-yl} -l,3-thiazol-2-yl)-5,5-dimethyl-2-oxabicyclo[2.2.2]octan-3-one : methyl (1,S,4R or lR,45)-4-hydroxy-4-(5- {6-[(6-methoxypyrimidin-4-yl)amino]-4- methylpyridin-2-yl} -l,3-thiazol-2-yl)-2,2-dimethylcyclohexanecarboxylate (70 mg, 0.16 mmol) was taken up in methanol (2 mL) and sodium hydroxide (1M in water, 0.31 mL, 0.31 mmol) was added. The reaction was capped and stirred at 85 °C overnight. The reaction was then cooled to room temperature and acidified with 0.15 mL of 2 M aqueous hydrochloric acid. A significant amount of precipitate formed. The reaction was then diluted with water, pH3 phosphate buffer, and 5 mL of ethyl acetate and stirred for 5 minutes. The resulting slurry was filtered. The filter cake was washed with water and diethyl ether and then dried in vacuo to afford (1,S,4R or lR,45)-4-hydroxy-4-(5- {6-[(6-methoxypyrimidin-4-yl)amino]-4-methylpyridin-2-yl}-l,3- thiazol-2-yl)-2,2-dimethylcyclohexanecarboxylic acid as a white solid. MS ESI calcd. for C23H28 504S [M+H]+ 470, found 470. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With zinc(II) nitrate; In acetonitrile; at 120℃; for 0.5h;Microwave irradiation; | General procedure: The ethyl 3-oxo-3-phenylpropanoate (96 mg, 0.5 mmol) was added to a solution of SelectfluorTM, (Sigma, 177 mg, 0.5 mmol) in CH3CN (1.0 mL). After heating in a Biotage Initiator microwave reactor at 90 °C for 30 min. The benzaldehyde (53 mg, 0.5 mmol), aniline (46 mg, 0.5 mmol) and Zn(NO3)2 (19 mg, 20 molpercent) were carefully added to the fluorinated solution and placed in microwave reactor at 120 °C for another 30 min. The reaction mixture was purified by flash column chromatography on silica gel giving the fluorinated product 3ac |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
65.5% | General procedure: To a solution of 6-(2,6-dichloro-3,5-dimethoxyphenyl)-1H-indazole-4-carboxylic acid (8, 30 mg,0.082 mmol) in pyridine (3 mL) at 0 °C. POCl3 (12 L, 0.090 mmol) was added, and the mixture wasstirred at 0 °C for 1 h. Aniline was added into the reaction mixture and stirred at 0 °C for 10 min, then,the mixture was stirred at 25 °C for 1.5 h. The reaction was quenched with distilled water, and theorganic phase was washed with water, 1N HCl and brine, dried over Na2SO4, filtered and concentratedin vacuo. The resultant residue was purified by column chromatography to get the final product as awhite solid. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With pyridine; at 0 - 30℃; | 42.0 g of <strong>[696-45-7]4-amino-6-methoxypyrimidine</strong> (abbreviated as 4-MP, prepared according to Chinese patent CN 102516182) was added to 126 ml of pyridine at 0 to 5°C, and 4-p-acetyl aminobenzenesulfonyl chloride (abbreviation SCL) 87.5 g. After the addition was complete, the reaction mixture was stirred at 20-30 ° C until the 4-MP remained After completion of the reaction, 450 ml of ultrapure water was added and the supernatant was removed from the reaction mixture. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
79% | In ethanol; water; at 20℃; for 0.5h; | A solution of Cu(NO3)25H2O (28 mg, 0.1 mmol) in water(20 mL) was added dropwise to a solution of <strong>[696-45-7]4-amino-6-methoxypyrimidine</strong> (13 mg, 0.1 mmol) in ethanol (10 mL). Afterstirring for 30 min, the mixture was filtered. Crystals suitable forX-ray analysis were obtained after five days by evaporating thefiltrate at room temperature (yield 79percent). Anal. Calc.: C, 18.14; H,2.72; N, 21.16percent. Found: C, 16.40; H, 2.53; N, 19.78percent. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With tris-(dibenzylideneacetone)dipalladium(0); caesium carbonate; 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene; In 1,4-dioxane; 1,2-dimethoxyethane; at 150℃; for 0.166667h;Microwave irradiation; | General procedure: A mixture of 4-bromo-2-(2,6-dichlorophenyl)-3H-imidazo[4,5-c]pyridine (400 mg, 1.166mmol)andcyclopropanecarboxamide(198 mg, 2.33mmol), Pd2dba3(53 mg, 0.0583mmol),XantPhos(67 mg, 0.117mmol) and Cs2CO3(1.14 g, 3.5mmol) in 1,4-dioxanes (5 mL)and 1,2-dimethoxyethane (5 mL) was heated in a microwave at 150°C for 10 min. The reaction mixture was cooled and filtered, and the filter cake was washed withdichloromethane. The combined organics were washed with brine, dried over MgSO4and concentrated. The crude product was purified by reverse phase HPLC to give the title compound (321 mg, 79percent yield) as a white solid. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With pyridine; In water; at 60℃; for 10h;Molecular sieve; | (C) the P-acetyl amino sulfonyl chloride (5 mg, 0 . 021 mmol) with acetone (500 mul, anhydrous level) mixed, added in the ice water bath under the conditions of 4 - amino -6 - methoxy pyrimidine (5 mg, 0 . 040 mmol), pyridine (3.5 mul, 0 . 044 mmol, anhydrous level) and 10 grain Molecular sieve, in 60 °C of condensation reaction in oil bath 10 h, TLC detection P-acetyl amino sulfonyl chloride has the reaction is complete; after completion of the reaction, the resulting condensation reaction material with methanol (0.4 ml) mixed, for 1 mm silica gel of purified, RfFor 0.2 (developing agent is petroleum ether, ethyl acetate and glacial acetic acid mixed solvent, wherein petroleum ether and ethyl acetate of volume ratio of 1:4, glacial acetic acid with a volume content of 2 ?), the acetylation sulfamonomethoxine strip after the scraping, ethyl acetate to extract for 6 times, the resulting concentration of the organic phase, get the acetylation sulfamonomethoxine with 4 - amino -6 - methoxy pyrimidine of the mixture. The resulting acetylation sulfamonomethoxine with 4 - amino -6 - methoxy pyrimidines of introducing the mixture into the methanol dissolved, for high performance liquid chromatography detected by acetylation sulfamonomethoxine of yield of 32.4percent. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
44% | With tris-(dibenzylideneacetone)dipalladium(0); caesium carbonate; 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene; In 1,4-dioxane; at 90℃; for 40h;Inert atmosphere; | Under Ar(g), to a mixture of 2-chloropyrazine (1) (252mg, 2.2mmol), 4- amino-6-methoxypyrimidine (2) (250mg, 2.0mmol), Cs2C03 (1.3g, 4.0mmol) was added degassed dry 1 ,4-dioxane (13ml_). The reaction mixture was then flushed with Ar(g) for 1 min before Pd2(dba)3 (92mg, 0.1 mmol) and Xantphos (127mg, 0.22mmol) were added. The reaction mixture was heated up to 90C for 40h. It was then cooled down to rt. EtOAc (15ml_), H20 (10mL) and brine (5mL) were added to the reaction mixture. The organic phase was separated and the aqueous phase was extracted with EtOAc (15ml_). The organic layers were combined and Pd-scavenger (MP-TMT, ~400mg, 1.3mmol/g) was added. This was shaken for several hours followed by filtration. The filtrate was concentrated in vacuo, dissolved in DMSO (4ml_) and purified by basic prep LCMS to yield (3) as a solid (177mg, 44%). (0636) LCMS (ES): Found 204.2 [M+Hf. |
Tags: 696-45-7 synthesis path| 696-45-7 SDS| 696-45-7 COA| 696-45-7 purity| 696-45-7 application| 696-45-7 NMR| 696-45-7 COA| 696-45-7 structure
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