Methyl 3-cyano-2-(trifluoromethyl)pyridine-6-acetate
Methyl 5-cyano-2-(trifluoromethyl)pyridine-4-acetate
Methyl 3-cyano-2-(trifluoromethyl)pyridine-4-acetate
Methyl 4-cyano-5-(trifluoromethyl)pyridine-2-acetate
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