(8E)-4-(4-bromophenyl)-8-[(4-bromophenyl)methylidene]-1,3,4,5,6,7-hexahydropyrido[4,3-d]pyrimidine-2-thione   、                                                                                      
2-溴代-2-乙酰基萘                                                                                                                                                                                              以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                    反应 12.0h,
                                                                                                                生成                                                 (E)-9-(4-bromobenzylidene)-5-(4-bromophenyl)-3-(naphthalen-2-yl)-6,7,8,9-tetrahydro-5H-pyrido[4,3-d]thiazolo[3,2-a]pyrimidin-7-ium