Ethyl 4-(bromomethyl)-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-acetate
2-Nitro-5-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-3-sulfonyl chloride
4-(Difluoromethyl)-3-nitro-2-(trifluoromethoxy)pyridine-5-sulfonamide
6-Nitro-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-sulfonyl chloride