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