ethyl 2-(aminocarbonyl)-4-(4-bromophenyl)-3-[(chloroacetyl)amino]-6-phenylthieno[2,3-b]pyridine-5-carboxylate 在
乙酸酐 作用下,
以
溶剂黄146 为溶剂,
反应 4.0h,
以70%的产率得到ethyl 9-(4-bromophenyl)-2-(chloromethyl)-4-oxo-7-phenyl-3,4-dihydropyrido[3',2':4,5]thieno[3,2-d]pyrimidine-8-carboxylate