N-[[4-chloro-2-[(6-hydroxy-7-methoxy-4-quinazolinyl)amino]phenyl]methyl]-N-methyl-L-alanine methyl ester   、                                                                                      
N-Boc-3-氨基丙基溴                                                                                                                                                              在
                                                                                                                                                                                 
caesium carbonate                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 N-[[4-chloro-2-[[6-[3-[[(1,1-dimethylethoxy)carbonyl]amino]propoxy]-7-methoxy-4-quinazolinyl]amino]phenyl]methyl]-N-methyl-L-alanine methyl ester