Ethyl 2-(chloromethyl)-5-cyano-3-(difluoromethyl)pyridine-4-acetate
3-(Bromomethyl)-6-(difluoromethyl)-2-fluoro-5-hydroxypyridine
3-(Aminomethyl)-5-(difluoromethyl)-2-fluoro-6-iodopyridine
5-(Difluoromethyl)-4-fluoro-2-hydroxypyridine-3-carboxaldehyde