Methyl 4-(difluoromethyl)-5-nitro-3-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 2-cyano-3-(difluoromethyl)-4-(trifluoromethyl)pyridine-6-carboxylate
Methyl 3-(chloromethyl)-5-iodo-4-(trifluoromethoxy)pyridine-2-acetate
3-Fluoro-4-iodo-5-(methylthio)pyridine