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