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