3-Fluoro-5-(perchlorophenyl)pyridine-4-acetonitrile
3-Fluoro-5-(perchlorophenyl)pyridine-2-acetonitrile
3-Fluoro-2-(perchlorophenyl)pyridine-6-acetonitrile
3-Fluoro-2-(perchlorophenyl)pyridine-5-acetonitrile
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