isopropyl 6-acetoxymethyl-2-cyano-3-methoxycarbonyl-4-(3-nitrophenyl)-1,4-dihydropyridine-5-carboxylate 在
ammonium hydroxide 作用下,
以
甲醇 、
氯仿 为溶剂,
反应 3.0h,
以95.4%的产率得到isopropyl 6-hydroxymethyl-2-cyano-3-methoxycarbonyl-4-(3-nitrophenyl)-1,4-dihydropyridine-5-carboxylate