6-Chloro-3,4-difluoro-2-(difluoromethyl)pyridine
3-Chloro-2,5-difluoro-6-(difluoromethyl)pyridine
3-Bromo-2,5-difluoro-6-(difluoromethyl)pyridine
3-Amino-2,5-difluoro-6-(difluoromethyl)pyridine
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