5-(Difluoromethyl)-3-nitro-4-(trifluoromethyl)pyridine-2-sulfonyl chloride
3-Chloro-5-methoxypyridine-2-sulfonyl chloride
5-(Difluoromethyl)-2-nitro-3-(trifluoromethyl)pyridine-6-methanol
3-(Bromomethyl)-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-6-sulfonamide