4-Chloro-2,5-difluoro-3-(difluoromethyl)pyridine
3-Chloro-2,5-difluoro-4-(difluoromethyl)pyridine
2,4-Dichloro-3-(difluoromethyl)-6-fluoropyridine
2,3-Dichloro-6-(difluoromethyl)-5-fluoropyridine
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