3-(5-methyl-1,3,4-thiadiazol-2-yl)-6-[4-[2-(trifluoromethyl)phenoxy]piperidin-1-yl]pyridazine 3-(5-methyl-1,3,4-thiadiazol-2-yl)-6-[4-[2-(trifluoromethyl)phenoxy]-1-piperidyl]pyridazine 3-(5-methyl-1,3,4-thiadiazol-2-yl)-6-[4-[2-(trifluoromethyl)phenoxy]-1-piperidinyl]pyridazine