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