Ethyl 6-methoxy-4-nitro-3-(trifluoromethoxy)pyridine-2-carboxylate
3-(Fluoromethyl)-4-methoxy-5-(trifluoromethoxy)pyridine-2-carboxylic acid
2-Methoxy-6-nitro-3-(trifluoromethoxy)pyridine-4-methanol
Ethyl 2-methoxy-4-nitro-3-(trifluoromethoxy)pyridine-5-carboxylate