2-Chloro-3-(difluoromethyl)-5-fluoro-4-(trifluoromethyl)pyridine
4-Chloro-3-cyano-2-(difluoromethyl)pyridine-6-carboxylic acid
2-Chloro-3-(difluoromethyl)-4-fluoro-5-(trifluoromethyl)pyridine
4-Chloro-6-cyano-2-(difluoromethyl)pyridine-3-carboxylic acid