2-(Chloromethyl)-6-(difluoromethyl)-3-fluoro-4-hydroxypyridine
3-(Bromomethyl)-5-(difluoromethyl)-2-fluoro-4-hydroxypyridine
2-Cyano-3-(difluoromethyl)-4-(trifluoromethyl)pyridine-6-methanol
5-Cyano-2-(difluoromethyl)-3-(trifluoromethyl)pyridine-6-acetonitrile