4-Fluoro-3-(perfluorophenyl)-2-(trifluoromethyl)pyridine
4-Fluoro-2-(perfluorophenyl)-6-(trifluoromethyl)pyridine
4-Fluoro-2-(perfluorophenyl)-5-(trifluoromethyl)pyridine
4-Fluoro-2-(perfluorophenyl)-3-(trifluoromethyl)pyridine
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