4-(Bromomethyl)-3-(difluoromethyl)pyridine-5-acetonitrile
3-(Bromomethyl)-5-(difluoromethyl)pyridine-4-acetonitrile
4-(Bromomethyl)-2-(difluoromethyl)-5-(trifluoromethyl)pyridine
2-(Chloromethyl)-3-(difluoromethyl)-4-iodopyridine
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