3-Fluoro-4-hydroxy-5-(trifluoromethoxy)pyridine-2-carboxaldehyde
6-(Difluoromethyl)-2-fluoro-3-(trifluoromethoxy)pyridine-4-carboxylic acid
5-Hydroxy-2-iodo-4-(trifluoromethoxy)pyridine-3-sulfonamide
4-Hydroxy-3-iodo-5-(trifluoromethoxy)pyridine-2-sulfonamide