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