2-[(4-amino-2-chlorophenyl)methyl]-4,4-dimethyl-3-isoxazolidinone   、                                                                                      
高邻苯二甲酸酐                                                                                                                                                              在
                                                                                                                                                                                 
丙酮   、                                                                                                  petroleum ether   、                                                                                                  
acetone - water                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                                                        以to yield 3.9 grams of 2-[[2-chloro-4-[(2-carboxyphenylmethyl)carbonylamino]phenyl]methyl]-4,4-dimethyl-3-isoxazolidinone的产率得到2-[[2-chloro-4-[(2-carboxyphenylmethyl)carbonylamino]phenyl]methyl]-4,4-dimethyl-3-isoxazolidinone