2-chloromethyl-3-ethoxycarbonyl-4-(o-methylthiophenyl)-5-methoxycarbonyl-6-methyl-1.4-dihydro pyridine 、
硒代胱胺 在
sodium tetrahydroborate 作用下,
以
乙醇 、
乙酸乙酯 为溶剂,
生成
2-aminoethyl-selenylmethyl-3-carboethoxy-5-carbomethoxy-4-(o-methylthiophenyl)-6-methyl-1,4-dihydropyridine