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