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