Ethyl 3-methoxy-2-nitro-4-(trifluoromethoxy)pyridine-6-acetate
Ethyl 2-methoxy-6-nitro-5-(trifluoromethoxy)pyridine-3-acetate
2-(Chloromethyl)-4-methoxy-6-nitro-3-(trifluoromethoxy)pyridine
2-(Chloromethyl)-4-methoxy-3-nitro-6-(trifluoromethoxy)pyridine