6-[4-[4-[2-(Piperazin-1-yl)ethoxy]phenyl]piperidin-1-yl]-3-(trifluoromethyl)-7,8-dihydro-[1,2,4]triazolo[4,3-b]pyridazine 、
正戊酸 以Obtained in 36% yield by an analogous method to Example 4.1的产率得到6-(4-{4-[2-(4-pentanoylpiperazin-1-yl)ethoxy]phenyl}piperidin-1-yl)-3-(trifluoromethyl)-7,8-dihydro[1,2,4]triazolo[4,3-b]pyridazine