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
2-Amino-3-(difluoromethyl)-4-methoxypyridine-5-carbonyl chloride