反应详情

A solution of 4-(5-methyl-4-((4-(trifluoromethyl)phenylsulfonyl)methyl)oxazol-2-yl)benzoic acid (420 mg, 0.99 mmol, 1.00 equiv), EDCI (230 mg, 1.20 mmol, 1.22 equiv), HOBt (170 mg, 1.26 mmol, 1.27 equiv), triethylamine (300 mg, 2.97 mmol, 3.01 equiv) and pyridin-3-ylmethanamine (140 mg, 1.30 mmol, 1.31 equiv) in N,N-dimethylformamide (20 mL) was stirred overnight at room temperature. The product was precipitated by the addition 60 mL of water/ice. The solid was collected by filtration, washed with 2×20 mL of water and dried in a vacuum oven to give 0.20 g (39%) of 4-(5-methyl-4-((4-(trifluoromethyl)phenylsulfonyl)methyl)oxazol-2-yl)-N-(pyridin-3-ylmethyl)benzamide as a white solid. LC-MS: (ES, m/z): 557 [M+CH3CN+H]+, 516 [M+H]+, 102. 1HNMR (400 MHz, CDCl3, ppm) δ 9.22 (s, 1H), 8.57 (s, 1H), 8.47 (s, 1H), 8.06-7.89 (m, 6H), 7.82 (d, J=8.0 Hz, 1H), 7.73 (d, J=7.6 Hz, 1H), 7.38-7.36 (m, 1H), 4.84 (s, 2H), 4.51 (d, J=5.2 Hz, 2H), 2.24 (s, 3H).

1. customThe product was precipitated by the addition 60 mL of water/ice
2. filtrationThe solid was collected by filtration
3. washwashed with 2×20 mL of water
4. customdried in a vacuum oven