4-(2-Cyano-phenyl)-2-formyl-6-methyl-1,4-dihydro-pyridine-3,5-dicarboxylic acid 3-ethyl ester 5-{2-[(4-methoxy-benzyl)-methyl-amino]-ethyl} ester                                                                                                                                                              在
                                                                                                                                                                                 sodium tetrahydroborate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                    反应 1.0h,
                                                                                                                以63.4%的产率得到4-(2-Cyano-phenyl)-2-hydroxymethyl-6-methyl-1,4-dihydro-pyridine-3,5-dicarboxylic acid 3-ethyl ester 5-{2-[(4-methoxy-benzyl)-methyl-amino]-ethyl} ester