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