3-Bromo-2-fluoro-6-(trifluoromethoxy)pyridine-5-acetonitrile
5-Bromo-2-(difluoromethyl)-3-methoxy-4-(trifluoromethoxy)pyridine
4-Bromo-6-(difluoromethyl)-3-methoxy-2-(trifluoromethoxy)pyridine
5-Bromo-3-(difluoromethyl)-4-methoxy-2-(trifluoromethoxy)pyridine