3-Chloro-2-(perfluorophenyl)pyridine-6-acetonitrile
3-Chloro-2-(perfluorophenyl)pyridine-5-acetonitrile
3-Chloro-2-(perfluorophenyl)pyridine-4-acetonitrile
2-Chloro-6-(perfluorophenyl)pyridine-4-acetonitrile
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