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