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