反应详情

To a solution of 5-[4-(tert-butoxycarbonyl)piperazin-1-yl]-2′,4′-difluorobiphenyl-3-carboxylic acid (30.0 mg, 0.072 mmol), in N,N-dimethylformamide (1.0 mL) was added (1R)-1-[2-(trifluoromethyl)pyrimidin-5-yl]ethanamine dihydrochloride (22.7 mg, 0.086 mmol), EDC (17.8 mg, 0.093 mmol), HOBT (11.0 mg, 0.072 mmol) and diisopropylethylamine (0.038 mL, 0.215 mmol). After 16 h, the mixture was acidified with hydrochloric acid gas. After 15 min, the mixture was concentrated and purified by reverse phase HPLC (C-18, 95% water/acetonitrile→25% water/acetonitrile with 0.1% trifluoroacetic acid) to give the title compound (28.4 mg). HRMS 492.1833 (M+1). 1H NMR (500 MHz, CD3OD): δ 9.00 (s, 2H); 7.57-7.50 (m, 1H); 7.47-7.43 (m, 2H); 7.24 (q, J=1.7 Hz, 1H); 7.09-7.03 (m, 2H); 5.33 (q, J=7.1 Hz, 1H); 3.25 (t, J=4.9 Hz, 4H); 3.00 (t, J=4.7 Hz, 4H); 1.68 (d, J=7.2 Hz, 3H).

1. waitAfter 15 min
2. concentrationthe mixture was concentrated
3. custompurified by reverse phase HPLC (C-18, 95% water/acetonitrile→25% water/acetonitrile with 0.1% trifluoroacetic acid)