3-Cyano-4-(difluoromethyl)-5-(trifluoromethyl)pyridine
3-Cyano-2-(difluoromethyl)-5-(trifluoromethyl)pyridine
2-(Chloromethyl)-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-5-sulfonyl chloride
3-(Bromomethyl)-2-(difluoromethyl)pyridine-4-acetic acid