Methyl 4-(bromomethyl)-5-chloro-3-(difluoromethyl)pyridine-2-carboxylate
4-Bromo-5-nitro-3-(trifluoromethoxy)pyridine-2-sulfonamide
Ethyl 2-chloro-3-(difluoromethyl)-4-nitropyridine-5-acetate
2-Chloro-3-cyano-5-(trifluoromethoxy)pyridine-4-acetonitrile