2-bromo-1-(4-bromophenyl)ethylidenemalononitrile 、 5-Cyano-6-mercapto-4-(4-methoxy-phenyl)-2-methyl-1,4-dihydro-pyridine-3-carboxylic acid ethyl ester; compound with piperidine 在
哌啶 作用下,
以
乙醇 为溶剂,
反应 0.17h,
以82%的产率得到2-Amino-4-(4-bromo-phenyl)-3-cyano-9-(4-methoxy-phenyl)-7-methyl-6,9-dihydro-thieno[2,3-b;4,5-b']dipyridine-8-carboxylic acid ethyl ester