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