3-(Chloromethyl)-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-5-sulfonamide
6-(Chloromethyl)-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-3-sulfonamide
2-(Chloromethyl)-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-5-sulfonamide
5-(Chloromethyl)-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-sulfonamide