6-Bromo-2-cyano-4-(trifluoromethoxy)pyridine-3-carboxylic acid
3-Bromo-5-(difluoromethyl)-6-hydroxy-2-(trifluoromethoxy)pyridine
6-Bromo-3-cyano-4-(trifluoromethoxy)pyridine-2-carboxylic acid
3-Bromo-4-(difluoromethyl)-6-hydroxy-2-(trifluoromethoxy)pyridine