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