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