3-(Bromomethyl)-5-chloro-4-(trifluoromethoxy)pyridine-2-carboxaldehyde
4-(Chloromethyl)-2-(difluoromethyl)pyridine-3-methanol
2-Chloro-4-cyano-3-(difluoromethyl)pyridine-5-carboxylic acid
3-Bromo-2-fluoro-5-(trifluoromethoxy)pyridine-4-carboxaldehyde