2,3-dichloro-5-(5,6,7,8-tetrahydropyrido[4',3':4,5]thieno[2,3-d]pyrimidin-4-ylamino)phenol hydrochloride 、
4-溴巴豆酸 、
N-甲基-叔丁基胺 以to yield 18 mg (16%)的产率得到5-[(7-{(2E)-4-[tert-butyl(methyl)amino]but-2-enoyl}-5,6,7,8-tetrahydropyrido[4',3':4,5]thieno[2,3-d]pyrimidin-4-yl)amino]-2,3-dichlorophenol