2-hydroxypropyl 2-cyano-3-methoxycarbonyl-6-methyl-4-(3-nitrophenyl)pyridine-5-carboxylate 在
lithium iodide 作用下,
以
吡啶 为溶剂,
反应 2.5h,
生成 lithium 2-cyano-5-(2-hydroxy)propoxycarbonyl-6-methyl-4-(3-nitrophenyl)pyridine-3-carboxylate 、 lithium 2-cyano-5-(β-hydroxyisopropoxy)carbonyl-6-methyl-4-(3-nitrophenyl)pyridine-3-carboxylate