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