描述:
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 以35%的产率得到2-<(2-Aminoethoxy)methyl>-3-(ethoxycarbonyl)-4-(2-chloropyridin-3-yl)-5-(methoxycarbonyl)-6-methyl-1,4-dihydropyridine