(E)-benzyl 4-(2-cyano-3-ethoxy-3-oxoprop-1-enylamino)-5,6-dihydropyridine-1(2H)-carboxylate 以
二苯醚 为溶剂,
反应 1.0h,
以to afford benzyl 3-cyano-4-oxo-4,5,7,8-tetrahydro-1,6-naphthyridine-6(1H)-carboxylate的产率得到benzyl 3-cyano-4-oxo-4,5,7,8-tetrahydro-1,6-naphthyridine-6(1H)-carboxylate