2-Chloro-6'-[2-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-ethoxymethyl]-2'-methyl-1',4'-dihydro-[3,4']bipyridinyl-3',5'-dicarboxylic acid 5'-ethyl ester 3'-methyl ester 在
一水合肼 作用下,
以
乙醇 、
异丙醇 为溶剂,
生成
6'-[2-(5-Amino-2H-[1,2,4]triazol-3-ylamino)-ethoxymethyl]-2-chloro-2'-methyl-1',4'-dihydro-[3,4']bipyridinyl-3',5'-dicarboxylic acid 5'-ethyl ester 3'-methyl ester