2-(Chloromethyl)-3-methoxy-5-nitro-4-(trifluoromethoxy)pyridine
3-(Bromomethyl)-6-methoxy-2-nitro-4-(trifluoromethoxy)pyridine
2-(Difluoromethyl)-4-iodo-6-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
5-(Bromomethyl)-2-methoxy-4-nitro-3-(trifluoromethoxy)pyridine