2-Cyano-4-(difluoromethyl)pyridine
3-(Chloromethyl)-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-6-carboxylic acid
3-(Bromomethyl)-2-(difluoromethyl)-6-methylpyridine
3-(Chloromethyl)-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-5-carboxylic acid