反应详情

To a solution of the sodium chloride salt of 3-(3-fluoropyridin-2-yl)-5-(5-methylpyridin-2-yl)benzoic acid (25.0 mg, 0.05 mmol) in N,N-dimethylformamide (0.35 mL) were added (1R)-1-(5-fluoropyridin-2-yl)ethanamine hydrochloride salt (16.5 mg, 0.08 mmol), EDC (14.9 mg, 0.08 mmol), HOBT (7.92 mg, 0.05 mmol) and triethylamine (21.6 μL, 0.16 mmol). The reaction mixture was stirred at ambient temperature. After 18 h, the mixture was cooled to ambient temperature. Purification by reverse phase HPLC (C-18, 95% water/acetonitrile→50% water/acetonitrile with 0.1% trifluoroacetic acid) gave the title compound. HRMS 431.1706 (M+1). 1H NMR (500 MHz, CDCl3): δ 8.73 (q, J=1.6 Hz, 1H); 8.57-8.54 (m, 2H); 8.52 (t, J=1.7 Hz, 1H); 8.45 (q, J=1.5 Hz, 1H); 8.44 (d, J=2.8 Hz, 1H); 7.78 (d, J=8.1 Hz, 1H); 7.62-7.52 (m, 3H); 7.43-7.31 (m, 3H); 5.43 (p, J=7.0 Hz, 1H); 2.40 (s, 3H); 1.61 (d, J=6.8 Hz, 3H).

1. temperaturethe mixture was cooled to ambient temperature
2. customPurification by reverse phase HPLC (C-18, 95% water/acetonitrile→50% water/acetonitrile with 0.1% trifluoroacetic acid)