2-(RS)-[2-(dimethylamino)-2-oxoethyl]-1,4-butanedioic acid 4-(1,1-dimethylethyl) 1-methyl ester                                                                                                                                                              在
                                                                                                                                                                                 
sodium hydroxide   、                                                                                                  Alcalase                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
丙酮                                                                                  为溶剂,
                                                                                                                                                    反应 18.0h,
                                                                                                                生成                                                 (R)-2-Dimethylcarbamoylmethyl-succinic acid 4-tert-butyl ester   、                                                                                             (S)-2-Dimethylcarbamoylmethyl-succinic acid 4-tert-butyl ester