5-Bromo-3-cyano-2-(difluoromethyl)-4-(trifluoromethyl)pyridine
5-Bromo-2-(bromomethyl)-3-cyano-6-(difluoromethyl)pyridine
2-Bromo-3-cyano-5-(difluoromethyl)pyridine-6-acetonitrile
4-Bromo-3-(bromomethyl)-6-cyano-2-(difluoromethyl)pyridine
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