反应详情

To a solution of 2-amino-5-piperidin-1-yl-benzamide (1.05 g, 4.6 mmol, Heterocyclic Comm. 2001, 7, 473-480) in THF (10 mL) was added K2CO3 (0.76 g, 5.5 mmol) and 2,4,5-trichloropyrimidine (0.84 g, 4.6 mmol). After stirring for 72 h, addition of water (5 mL) gave a precipitate that was removed by filtration and washed with water (5×3 mL) and ether (3×2 mL) to afford 2-(2,5-dichloro-pyrimidin-4-ylamino)-5-piperidin-1-yl-benzamide as a yellow solid (0.99 g) that was used without further purification in the subsequent step.

1. customgave a precipitate that
2. customwas removed by filtration
3. washwashed with water (5×3 mL) and ether (3×2 mL)