4,4-difluorocyclohexan-1-amine;hydrochloride

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: The title compound was synthesized in two steps. The first as described for Intermediate example I-97, starting from 5-(methoxycarbonyl)pyridine-2-carboxylic acid and 4,4-difluorocyclohexylamine hydrochlorid, and the second as described for Intermediate example I-98 at 55° C., starting from the product received in the first step which was first purified by column chromatography using a gradient of ethyl acetate in heptane. Total yield (two steps) 65%; 1H NMR (400 MHz, DMSO-d6) δ ppm 9.08 (dd, 1 H), 8.89 (d, 1 H), 8.43 (dd, 1 H), 8.13 (dd, 1 H), 3.95-4.07 (m, 1 H), 1.68-2.11 (m, 8 H); MS (ESI) m/z 285[M+H+], m/z 283[M−H+]; at 55° C. was first purified by column chromatography Total yield (two steps) 65%

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: Prepared as described for (R)-10-(3-hydroxy-3-(5-methylisoxazol-3-yl)but-1-yn-1-yl)-N3-(tetrahydro-2H-pyran-4-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine-2,3-dicarboxamide replacing 4-aminotetrahydropyran with 4-amino-1,1-difluorocyclohexane hydrochloride. Off-white solid 40.2 mg, 12%). Prepared

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: Prepared as described for (R)-10-(3-hydroxy-3-(5-methylisoxazol-3-yl)but-1-yn-1-yl)-N3-(tetrahydro-2H-pyran-4-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine-2,3-dicarboxamide replacing 4-aminotetrahydropyran with 4-amino-1,1-difluorocyclohexane hydrochloride. Off-white solid 40.2 mg, 12%). Prepared

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A solution of hydrogen chloride in dioxane (4M, 1.6 ml) was added at 20° C. to a stirred solution of Intermediate 146 (140 mg, 0.6 mmol), in dioxane (1.6 ml). After 3 h, the reaction mixture was concentrated in vacuo to afford Intermediate 147 (96.5 mg) containing 4-fluoro-3-cyclohexen-1-amine. 1H NMR (400 MHz in d6-DMSO, 27° C., δ ppm) Minor component: δ8.22 (br, 3H excess), 5.18 (dm, 16 Hz, 1H), 3.28-3.13 (m, 1H excess), 2.41-1.53 (m's, 6H excess). Major component: δ8.22 (br, 3H excess), 3.28-3.13 (m, 1H excess), 2.41-1.53 (m's, 8H excess). Impurities are also present. the reaction mixture was concentrated in vacuo

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A solution of hydrogen chloride in dioxane (4M, 1.6 ml) was added at 20° C. to a stirred solution of Intermediate 146 (140 mg, 0.6 mmol), in dioxane (1.6 ml). After 3 h, the reaction mixture was concentrated in vacuo to afford Intermediate 147 (96.5 mg) containing 4-fluoro-3-cyclohexen-1-amine. 1H NMR (400 MHz in d6-DMSO, 27° C., δ ppm) Minor component: δ8.22 (br, 3H excess), 5.18 (dm, 16 Hz, 1H), 3.28-3.13 (m, 1H excess), 2.41-1.53 (m's, 6H excess). Major component: δ8.22 (br, 3H excess), 3.28-3.13 (m, 1H excess), 2.41-1.53 (m's, 8H excess). Impurities are also present. the reaction mixture was concentrated in vacuo

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of 4,4-difluorocyclohexanamine hydrochloride (Matrix scientific, 250 mg, 1.45 mmol) in DCM (5 mL) was added 4-nitrophenyl chloroformate (367 mg, 1.82 mmol) and DIEA (507 μl, 0.29 mmol). The resulting mixture was then stirred at RT for 16 h. Then, MeOH (2 mL) was added and the solvents were removed. The residue was purified by silica gel flash column chromatography (0%-100% EtOAc/hexane) to give the title compound as a yellow solid. the solvents were removed The residue was purified by silica gel flash column chromatography (0%-100% EtOAc/hexane)

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of 4,4-difluorocyclohexanamine hydrochloride (Matrix scientific, 250 mg, 1.45 mmol) in DCM (5 mL) was added 4-nitrophenyl chloroformate (367 mg, 1.82 mmol) and DIEA (507 μl, 0.29 mmol). The resulting mixture was then stirred at RT for 16 h. Then, MeOH (2 mL) was added and the solvents were removed. The residue was purified by silica gel flash column chromatography (0%-100% EtOAc/hexane) to give the title compound as a yellow solid. the solvents were removed The residue was purified by silica gel flash column chromatography (0%-100% EtOAc/hexane)

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 1-Hydroxybenzotriazole (138 mg), 4-benzyloxycarbonylbicyclo[2.2.2]octane-1-carboxylic acid (72.0 mg) and N,N-dimethylformamide (8 mL) were mixed together. While the mixture was chilled in an ice bath, 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (265 mg) was added and the mixture was stirred at room temperature for 1 hour. Subsequently, a mixture of 4,4-difluorocyclohexylamine hydrochloride (108 mg), triethylamine (105 μL) and N,N-dimethylformamide (2 mL) was added and the resultant mixture was stirred at room temperature for 18 hours and was then concentrated under reduced pressure. Water (10 mL) was added to the residue and the solution was extracted with ethyl acetate (3×10 mL). The ethyl acetate extracts were combined, washed with saturated brine, dried over anhydrous sodium sulfate and concentrated under reduced pressure. The resulting residue was purified by a silica gel column (eluant:hexane:ethyl acetate=3:1) to give 4-benzyloxycarbonylamino-N-(4,4-difluorocyclohexyl)bicyclo[2.2.2]octane-1-carboxamide (57.0 mg) as a white solid. While the mixture was chilled in an ice bath was added was then concentrated under reduced pressure Water (10 mL) was added to the residue the solution was extracted with ethyl acetate (3×10 mL) washed with saturated brine dried over anhydrous sodium sulfate concentrated under reduced pressure The resulting residue was purified by a silica gel column (eluant:hexane:ethyl acetate=3:1)

反応条件: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To the solution of 2,4-dichloro-5,6-dimethylpyrimidine (0.585 g, 3.304 mmol) in N,N-dimethylformamide (10 mL), (4,4-difluorocyclohexyl)amine hydrochloride (0.652 g, 3.800 mmol) and triethylamine (1.338 g, 13.218 mmol) were added, and reaction mixture was heated at 50° C. overnight. Volatiles were removed under reduced pressure, and the residue was poured into water (300 mL). The product was extracted with ether (3×50 mL), dried over sodium sulfate, filtered, and concentrated under reduced pressure. The residue was subjected to column chromatography on silica eluting with a mixture of hexane/ethyl acetate (gradient 4:1-2:1) to provide 621 mg (68%) of the titled compound as a white solid. 1H NMR (300 MHz, DMSO-d6) δ ppm 1.18-1.24 (m, 1H), 1.60-1.72 (m, 2H), 1.80-2.10 (m, 8H) 2.21 (s, 3H), 4.00-4.10 (m, 1H), 6.73 (d, J=7.79 Hz, 1H); MS (ESI) m/z 318.6 (M+1)+. reaction mixture Volatiles were removed under reduced pressure the residue was poured into water (300 mL) The product was extracted with ether (3×50 mL) dried over sodium sulfate filtered concentrated under reduced pressure The residue was subjected to column chromatography on silica eluting with a mixture of hexane/ethyl acetate (gradient 4:1-2:1)

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A solution of 4-chloro-5,6-dimethyl-N-(pyridin-2-ylmethyl)pyrimidin-2-amine (200 mg, 0.8 mmol, Example 29, Step C) and (4,4-difluorocyclohexyl)amine hydrochloride (172 mg, 1 mmol) in acetonitrile (5 mL) was refluxed overnight. The reaction mixture was diluted with water (50 mL) and a formed precipitate was collected by filtration. The crude material was purified by HPLC (column: YMC-PACK ODS-AQ C18, 250 mm×20 mm, 10 μm; gradient: 20-50% acetonitrile in 0.02% trifluoroacetic acid/water over fifteen minutes; 50-100% acetonitrile in 0.02% trifluoroacetic acid/water over five minutes; flow rate: 25 mL/min; temperature: 25° C.) to afford 114 mg, 25% of the titled compound as the trifluoroacetic acid salt as a white solid. 1H NMR (300 MHz, DMSO-d6) δ ppm 1.45-1.55 (m, 4H), 1.70-1.82 (m, 2H), 1.88 (s, 3H), 1.90-2.00 (m, 2H), 2.25 (s, 3H), 3.90 (bs, 1H), 4.70 (d, J=5.37 Hz, 2H), 7.38 (t, J=6.25 Hz, 1H), 7.47 (d, J=7.52 Hz, 1H), 7.64 (d, J=7.52 Hz, 1H), 7.90 (t, J=7.52 Hz, 1H), 8.46-8.52 (m, 1H), 8.57 (d, J=4.57 Hz, 1H), 12.78 (bs, 1H); MS (ESI) m/z 348.8 (M+1)+. N4-(4,4-Difluorocyclohexyl)-5,6-dimethyl-N2-(pyridin-2-ylmethyl)pyrimidine-2,4-diamine trifluoroacetate was purified by column chromatography eluting with mixture of chloroform/ethanol/20% water solution of ammonia (200:10:1) to afford 58 mg (68%) of the titled compound as a white solid. 1H NMR (300 MHz, DMSO-d6) δ ppm 1.40-1.51 (m, 2H), 1.60-1.71 (m, 3H), 1.81 (bs, 4H), 1.90-1.98 (m, 2H), 2.07 (s, 3H), 3.76-3.84 (m, 1H), 4.46 (d, J=5.91 Hz, 2H), 5.84 (d, J=7.25 Hz, 1H), 6.70-6.75 (m, 1H), 7.10-7.22 (m, 1H), 7.24 (d, J=7.79 Hz, 1H), 7.67 (t, J=7.52 Hz, 1H), 8.45 (d, J=4.30 Hz, 1H); MS (ESI) m/z 348.8 (M+1)+. a formed precipitate was collected by filtration The crude material was purified by HPLC (column: YMC-PACK ODS-AQ C18, 250 mm×20 mm, 10 μm; gradient: 20-50% acetonitrile in 0.02% trifluoroacetic acid/water over fifteen minutes; 50-100% acetonitrile in 0.02% trifluoroacetic acid/water over five minutes; flow rate: 25 mL/min; temperature: 25° C.)

反応条件: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To the solution of 2,4-dichloro-5,6-dimethylpyrimidine (0.585 g, 3.304 mmol, Example 1, Step C) in N,N-dimethylformamide (10 mL), (4,4-difluorocyclohexyl)amine hydrochloride (0.652 g, 3.800 mmol) and triethylamine (1.338 g, 13.218 mmol) were added, and reaction mixture was heated at 50° C. overnight. Volatiles were removed under reduced pressure, and the residue was poured into water (300 mL). The mixture was extracted with ether (3×50 mL), dried over sodium sulfate, filtered, and concentrated. The residue was subjected to column chromatography on silica eluting with a mixture of hexane/ethyl acetate (gradient 4:1-2:1) to provide 621 mg (68%) of the titled compound as a white solid. 1H NMR (300 MHz, DMSO-d6) δ ppm 1.18-1.24 (m, 1H), 1.60-1.72 (m, 2H), 1.80-2.10 (m, 8H) 2.21 (s, 3H), 4.00-4.10 (m, 1H), 6.73 (d, J=7.79 Hz, 1H); MS (ESI) m/z 318.6 (M+1)+. reaction mixture Volatiles were removed under reduced pressure the residue was poured into water (300 mL) The mixture was extracted with ether (3×50 mL) dried over sodium sulfate filtered concentrated The residue was subjected to column chromatography on silica eluting with a mixture of hexane/ethyl acetate (gradient 4:1-2:1)

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 1-Hydroxybenzotriazole (138 mg), 4-benzyloxycarbonylbicyclo[2.2.2]octane-1-carboxylic acid (72.0 mg) and N,N-dimethylformamide (8 mL) were mixed together. While the mixture was chilled in an ice bath, 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (265 mg) was added and the mixture was stirred at room temperature for 1 hour. Subsequently, a mixture of 4,4-difluorocyclohexylamine hydrochloride (108 mg), triethylamine (105 μL) and N,N-dimethylformamide (2 mL) was added and the resultant mixture was stirred at room temperature for 18 hours and was then concentrated under reduced pressure. Water (10 mL) was added to the residue and the solution was extracted with ethyl acetate (3×10 mL). The ethyl acetate extracts were combined, washed with saturated brine, dried over anhydrous sodium sulfate and concentrated under reduced pressure. The resulting residue was purified by a silica gel column (eluant:hexane:ethyl acetate=3:1) to give 4-benzyloxycarbonylamino-N-(4,4-difluorocyclohexyl)bicyclo[2.2.2]octane-1-carboxamide (57.0 mg) as a white solid. While the mixture was chilled in an ice bath was added was then concentrated under reduced pressure Water (10 mL) was added to the residue the solution was extracted with ethyl acetate (3×10 mL) washed with saturated brine dried over anhydrous sodium sulfate concentrated under reduced pressure The resulting residue was purified by a silica gel column (eluant:hexane:ethyl acetate=3:1)