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