1-Butanesulfonamide, 2-(((2,8-dimethyl(1,2,4)triazolo(1,5-b)pyridazin-6-yl)oxy)methyl)-2-ethyl-

2-{[(2,8-Dimethyl[1,2,4]triazolo[1,5-b]pyridazin-6-yl)oxy]methyl}-2-ethylbutane-1-sulfonamide