Ethyl 2-methoxy-4-nitro-5-(trifluoromethoxy)pyridine-3-acetate
Methyl 3-(aminomethyl)-5-methoxy-2-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 3-methoxy-6-nitro-2-(trifluoromethoxy)pyridine-4-acetate
Methyl 2-(aminomethyl)-4-methoxy-3-(trifluoromethoxy)pyridine-5-carboxylate