N-(tert-butoxycarbonyl)-N,O-dimethyl-L-homoserine   、                                                                                      N2-({4-[(3-chloro-2-fluorophenyl)amino]-7-methoxyquinazolin-6-yl}methyl)-N2,O-dimethyl-L-homoserinamide                                                                                                                                                              在
                                                                                                                                                                                 
氮   、                                                                                                  
N2,O-dimethyl-L-serinamide                                                                                                                                  作用下,
                                                                                                                                                                                                                            以to give N2,O-dimethyl-L-homoserinamide的产率得到N2,O-dimethyl-L-homoserinamide