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