3-Bromo-5-(chloromethyl)-4-(difluoromethyl)pyridine
2-Bromo-6-(chloromethyl)-4-(difluoromethyl)pyridine
3-Bromo-5-(difluoromethyl)-2-iodopyridine
4-Bromo-3-(bromomethyl)-5-(difluoromethyl)pyridine
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