5-Chloro-2-(difluoromethyl)-4-fluoro-3-nitropyridine
4-Cyano-3-fluoro-5-nitro-2-(trifluoromethoxy)pyridine
4-(Chloromethyl)-5-(difluoromethyl)-2-iodo-3-(trifluoromethyl)pyridine
3-(Chloromethyl)-2-(difluoromethyl)-6-hydroxy-5-(trifluoromethoxy)pyridine