Ethyl 3-methyl-6-(trifluoromethoxy)pyridine-2-acetate
Ethyl 5-methyl-2-(trifluoromethoxy)pyridine-4-acetate
Ethyl 5-methyl-2-(trifluoromethoxy)pyridine-3-acetate
Ethyl 4-methyl-5-(trifluoromethoxy)pyridine-2-acetate
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