3-(Difluoromethyl)-2-methoxypyridine-4-sulfonamide
2-(Difluoromethyl)-6-methoxypyridine-3-sulfonamide
4-(Chloromethyl)-5-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-2-sulfonyl chloride
Ethyl 5-(chloromethyl)-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-3-acetate