2-Bromo-4-nitro-3-(trifluoromethoxy)pyridine-6-carboxaldehyde
2-(Difluoromethyl)-4-methyl-3-(trifluoromethoxy)pyridine-5-carboxaldehyde
5-(Bromomethyl)-4-chloro-2-(difluoromethyl)-3-nitropyridine
5-Cyano-3-fluoro-2-(trifluoromethoxy)pyridine-4-sulfonamide