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