2-(Difluoromethyl)-4-methoxypyridine-3-sulfonamide
2-(Difluoromethyl)-3-methoxypyridine-4-sulfonamide
4-(Chloromethyl)-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-5-sulfonyl chloride
Ethyl 4-(chloromethyl)-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-acetate