反应详情

A solution of 4-({3-chloro-4-[(3-fluorobenzyl)oxy]phenyl}amino)-5,6,7,8-tetrahydrothieno[2,3-b:5,4-c′]dipyridine-3-carbonitrile from Example 90A (80 mg, 0.17 mmol) and (2E)-4-[methyl(1-methylethyl)amino]but-2-enoic acid hydrochloride from Example 2A (47 mg, 0.24 mmol) in DMF (2 mL) was treated with DIPEA (89 mg, 0.69 mmol) and TBTU (83 mg, 0.26 mmol). The mixture was stirred at rt overnight and then directly purified by preparative HPLC to yield 63 mg (61%) of the title compound.

1. customdirectly purified by preparative HPLC