反应详情

A mixture of 1-(7-(3,4-dimethoxyphenylamino)thiazolo[5,4-d]pyrimidin-5-yl)piperidine-3-carboxylic acid (57 mg, 0.137 mmol), tert-butyl-4-aminobenzoate (34.4 mg, 0.178 mmol), HATU (67.6 mg, 0.178 mmol) and DIEA (53 mg, 0.411 mmol) in 10 mL of DMF was stirred at room temperature for 72 hours. The solvent was evaporated and the residue was purified by silica gel chromatography (silica gel 200-300 mesh, ethyl acetate:petroleum ether=1:1) to give tert-butyl 4-(1-(7-(3,4-dimethoxyphenylamino)thiazolo[5,4-d]pyrimidin-5-yl)piperidine-3-carboxamido)benzoate (75 mg, 92%) as a solid. LC-MS: 591.2 [M+H]+, tR=1.77 min.

1. customThe solvent was evaporated
2. customthe residue was purified by silica gel chromatography (silica gel 200-300 mesh, ethyl acetate:petroleum ether=1:1)