2,3-Bis(trifluoromethyl)-5-(difluoromethyl)pyridine
4,5-Bis(trifluoromethyl)-2-cyanopyridine
3,5-Bis(trifluoromethyl)-4-cyanopyridine
2,6-Bis(trifluoromethyl)-3-ethylpyridine
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