1H-1,2,4-三唑   、                                                                                      2-chloro-6-ethyl-4-(3,4-methylenedioxyphenethylamino)-thieno-[2,3-d]-pyrimidine                                                                                                                                                                                                                                                                                                          以gives 2-(1,2,4-triazol-1-yl)-6-ethyl-4-(3,4-methylenedioxyphenethylamino)-thieno-[2,3-d]-pyrimidine的产率得到2-(1,2,4-triazol-1-yl)-6-ethyl-4-(3,4-methylenedioxyphenethylamino)thieno[2,3-d]pyrimidine