5-Bromo-2-nitro-4-(trifluoromethoxy)pyridine-3-sulfonamide
4-Chloro-3-(difluoromethyl)-6-fluoro-2-(trifluoromethoxy)pyridine
4-Chloro-3-(difluoromethyl)-2-fluoro-6-(trifluoromethoxy)pyridine
Methyl 4-bromo-2-(chloromethyl)-5-(trifluoromethoxy)pyridine-3-carboxylate