6-chloro-7-methyl-3-(trifluoromethyl)[1,2,4]triazolo[4,3-b]pyridazine   、                                                                                      
1-(4-氰基苄基)哌嗪                                                                                                                                                                                                                                                                                                          以to give 4-((4-(7-methyl-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)piperazin-1-yl)methyl)benzonitrile (0.099 g, 75%)的产率得到4-((4-(7-methyl-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)piperazin-1-yl)methyl)benzonitrile