tert-butyl 2-(4-aminophenyl)piperidine-1-carboxylate

反应条件: temp:35.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of Example 1E (0.048 g, 0.133 mmol) and tert-butyl 2-(4-aminophenyl)piperidine-1-carboxylate (0.059 g, 0.213 mmol) was heated in a capped vial at 120° C. for 1 hour. The reaction mixture was treated with ethyl acetate and washed with saturated NaHCO3. The organic layer was dried over MgSO4, filtered, and concentrated. The residue was dissolved in CH2Cl2 (2 mL) and treated with trifluoroacetic acid (0.103 ml, 1.334 mmol). The mixture was stirred at 35° C. for 5 hours, concentrated, and purified by HPLC (see protocol in Example 1F) to provide the title compound as a trifluoroacetic acid salt. 1H NMR (500 MHz, CD3OD) δ 1.89-1.72 (m, 2H), 2.16-1.96 (m, 4H), 3.25-3.16 (m, 1H), 3.51-3.43 (m, 1H), 4.29-4.22 (m, 1H), 7.08 (d, J=1.9 Hz, 1H), 7.62-7.50 (m, 5H), 7.72-7.66 (m, 1H), 7.97-7.86 (m, 3H), 9.19 (s, 1H). MS (ESI+) m/z 472.2 (M+H)+. washed with saturated NaHCO3 The organic layer was dried over MgSO4 filtered concentrated The residue was dissolved in CH2Cl2 (2 mL) concentrated purified by HPLC (see protocol in Example 1F)

反应条件: temp:35.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of Example 1E (0.048 g, 0.133 mmol) and tert-butyl 2-(4-aminophenyl)piperidine-1-carboxylate (0.059 g, 0.213 mmol) was heated in a capped vial at 120° C. for 1 hour. The reaction mixture was treated with ethyl acetate and washed with saturated NaHCO3. The organic layer was dried over MgSO4, filtered, and concentrated. The residue was dissolved in CH2Cl2 (2 mL) and treated with trifluoroacetic acid (0.103 ml, 1.334 mmol). The mixture was stirred at 35° C. for 5 hours, concentrated, and purified by HPLC (see protocol in Example 1F) to provide the title compound as a trifluoroacetic acid salt. 1H NMR (500 MHz, CD3OD) δ 1.89-1.72 (m, 2H), 2.16-1.96 (m, 4H), 3.25-3.16 (m, 1H), 3.51-3.43 (m, 1H), 4.29-4.22 (m, 1H), 7.08 (d, J=1.9 Hz, 1H), 7.62-7.50 (m, 5H), 7.72-7.66 (m, 1H), 7.97-7.86 (m, 3H), 9.19 (s, 1H). MS (ESI+) m/z 472.2 (M+H)+. washed with saturated NaHCO3 The organic layer was dried over MgSO4 filtered concentrated The residue was dissolved in CH2Cl2 (2 mL) concentrated purified by HPLC (see protocol in Example 1F)

反应条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 2,4-Dichloro-5-(trifluoromethyl)pyrimidine (0.101 g, 0.464 mmol) was stirred in a 1:1 t-BuOH:1,2-dichloroethane mixture (10 mL) at 0° C. and a 1.0 M ZnCl2 solution in diethyl ether (0.530 mL, 0.530 mmol) was added cautiously over 20 minutes. After addition, the reaction was left stirring at 0° C. for 30 minutes and a solution of tert-butyl 2-(4-aminophenyl)piperidine-1-carboxylate (I36) (0.122 g, 0.441 mmol) in 1:1 t-BuOH:1,2-dichloroethane (4 mL) was added drop-wise over 15 minutes at 0° C. followed by a solution of triethylamine (0.074 μL, 0.530 mmol) in 1:1 t-BuOH:1,2-dichloroethane (4 mL) and the reaction was allowed to warm to room temperature and was stirred for 60 hours. Volatiles were evaporated in vacuo and the resulting residue was suspended in water (40 mL), the suspension was sonicated for 40 minutes and the product was collected by filtration, the solid was washed with water (5×10 mL) and dried under a high vacuum to give the title compound (I37) (0.135 g, 67% yield) as a pale pink solid. LCMS Method C: rt 6.96 min; m/z 455.2, 457.2 M−H]−. After addition the reaction was left to warm to room temperature was stirred for 60 hours Volatiles were evaporated in vacuo the suspension was sonicated for 40 minutes the product was collected by filtration the solid was washed with water (5×10 mL) dried under a high vacuum

反应条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 2,4-Dichloro-5-(trifluoromethyl)pyrimidine (0.101 g, 0.464 mmol) was stirred in a 1:1 t-BuOH:1,2-dichloroethane mixture (10 mL) at 0° C. and a 1.0 M ZnCl2 solution in diethyl ether (0.530 mL, 0.530 mmol) was added cautiously over 20 minutes. After addition, the reaction was left stirring at 0° C. for 30 minutes and a solution of tert-butyl 2-(4-aminophenyl)piperidine-1-carboxylate (I36) (0.122 g, 0.441 mmol) in 1:1 t-BuOH:1,2-dichloroethane (4 mL) was added drop-wise over 15 minutes at 0° C. followed by a solution of triethylamine (0.074 μL, 0.530 mmol) in 1:1 t-BuOH:1,2-dichloroethane (4 mL) and the reaction was allowed to warm to room temperature and was stirred for 60 hours. Volatiles were evaporated in vacuo and the resulting residue was suspended in water (40 mL), the suspension was sonicated for 40 minutes and the product was collected by filtration, the solid was washed with water (5×10 mL) and dried under a high vacuum to give the title compound (I37) (0.135 g, 67% yield) as a pale pink solid. LCMS Method C: rt 6.96 min; m/z 455.2, 457.2 M−H]−. After addition the reaction was left to warm to room temperature was stirred for 60 hours Volatiles were evaporated in vacuo the suspension was sonicated for 40 minutes the product was collected by filtration the solid was washed with water (5×10 mL) dried under a high vacuum