methyl (5R)-3-(2,3-dihydro-3-isopropyl-2-oxo-6-benzothiazolyl)-2-oxo-5-oxazolidinecarboxylate   、                                                                                      
甲胺                                                                                                                                                                                              以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 0.75h,
                                                                                                                以to give the title compound, mp 172-173.5° C.的产率得到(5R)-(-)-N-Methyl-3-(2,3-dihydro-3-isopropyl-2-oxo-6-benzothiazolyl)-2-oxo-5-oxazolidinecarboxamide