乙醇 、
N-benzoyl-N'-[4-cyano-1-(5,6-dihydronaphtho[1',2':4,5]thieno[2,3-d]pyrimidin-11-yl)-1H-pyrazol-5-yl]thiourea 在
sodium hydroxide 作用下,
反应 4.0h,
以55%的产率得到4-amino-1-(5,6-dihydronaphtho[1',2':4,5]thieno[2,3-d]pyrimidin-11-yl)-1H-pyrazolo[3,4-d]pyrimidin-6(5H)-thione