2-(Chloromethyl)-3,6-difluoro-5-(difluoromethyl)pyridine
5-(Chloromethyl)-2,4-difluoro-3-(difluoromethyl)pyridine
4-(Bromomethyl)-2,6-difluoro-3-(difluoromethyl)pyridine
5-(Bromomethyl)-2,4-difluoro-3-(difluoromethyl)pyridine
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