2-(Chloromethyl)-5-(difluoromethyl)-4-methoxy-3-(trifluoromethoxy)pyridine
5-(Bromomethyl)-2-(difluoromethyl)-4-methoxy-3-(trifluoromethoxy)pyridine
2-(Chloromethyl)-3-(difluoromethyl)-5-methoxy-4-(trifluoromethoxy)pyridine
4-(Bromomethyl)-3-(difluoromethyl)-5-methoxy-2-(trifluoromethoxy)pyridine