ethyl 1-[((benzoylamino)carbonothioyl)amino]-5-isopropyl-7,8-dihydro-6H-cyclopenta[d]thieno[2,3-b]pyridine-2-carboxylate 在
potassium hydroxide 作用下,
以
乙醇 为溶剂,
反应 2.0h,
以76%的产率得到4-isopropyl-9-thioxo-2,3,9,10-tetrahydro-1H-cyclopenta[4',5']pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-7(8H)-one