2-(Difluoromethyl)-3-nitro-6-(trifluoromethyl)pyridine-4-sulfonyl chloride
4-(Chloromethyl)-2-(difluoromethyl)-6-(trifluoromethyl)pyridine-3-sulfonyl chloride
Ethyl 6-fluoro-4-hydroxy-3-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 2-(difluoromethyl)-4-hydroxy-3-(trifluoromethoxy)pyridine-5-carboxylate