Ethyl 5-methoxy-2-nitro-3-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 2-methoxy-4-methyl-5-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 4-methoxy-3-nitro-6-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 3-(chloromethyl)-4-methoxy-2-(trifluoromethoxy)pyridine-5-carboxylate