反应详情

To a stirred mixture of 4-(1-(4-cyanobenzyl)piperidin-4-ylcarbamoyl)benzoic acid (100 mg, 0.275 mmol) in anhydrous N,N-dimethylformamide (3 mL) was added triethylamine (84 μl, 0.825 mmol), HATU (115 mg, 0.3 mmol), and 4-(4-ethoxybenzyl)piperidine (61 mg, 0.275 mmol). The mixture was stirred at room temperature overnight and then poured into water. The resulting solids were collected by filtration, purified by column chromatography to yield 0.7 g (55%) of N-(1-(4-cyanobenzyl)piperidin-4-yl)-4-(1-(4-ethoxybenzyl)piperidine-4-carbonyl)benzamide (compound 27) as an offwhite solid. 1H-NMR (CDC3, 300 MHz): δ 7.761 (d, 2H), 7.600 (m, 2H), 7.434 (m, 4H), 7.022 (d, 2H), 6.812 (d, 2H), 6.022 (d, 1H), 4.658(m, 1H), 3.994 (dd, 2H), 3.569 (m, 3H), 2.885 (m, 4H), 2.505(m, 2H), 2.227 (m, 2H), 2.049 (m, 2H), 1.639(m, 6H), 1.405(m, 3H); LCMS (m/z): 565 (MH+).

1. filtrationThe resulting solids were collected by filtration
2. custompurified by column chromatography