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