methyl N-benzyloxycarbonyl-6-[difluoro(phenyl)methyl]-4-hydroxymethyl-1,4-dihydropyridin-3-carboxylate   、                                                                                      
叔丁基二甲基氯硅烷                                                                                                                                                              在
                                                                                                                                                                                 
咪唑                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙腈                                                                                  为溶剂,
                                                                                                                                                    反应 4.0h,
                                                                                                                生成                                                 
(+)-methyl N-benzyloxycarbonyl-6-[difluoro(phenyl)methyl]-4-(tert-butyldimethylsilyloxy)methyl-1,4-dihydropyridin-3-carboxylate   、                                                                                             (+)-methyl N-benzyloxycarbonyl-6-[difluoro(phenyl)methyl]-4-(tert-butyldimethylsilyloxy)methyl-1,4-dihydropyridin-3-carboxylate