2,3,5-Trifluoro-6-(3-fluorophenyl)pyridine
2,3,5-Trifluoro-6-(2-fluorophenyl)pyridine
2,3,5,6-Tetrafluoro-4-(4-fluorophenyl)pyridine
2,3,5,6-Tetrafluoro-4-(3-fluorophenyl)pyridine
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