2-(Difluoromethyl)-4-methyl-3-(trifluoromethoxy)pyridine-5-carboxaldehyde
5-(Bromomethyl)-4-chloro-2-(difluoromethyl)-3-nitropyridine
5-Cyano-3-fluoro-2-(trifluoromethoxy)pyridine-4-sulfonamide
4-Cyano-3-(difluoromethyl)-5-hydroxypyridine-2-acetic acid