5-Chloro-4-mercaptopicolinonitrile
3-Bromo-5-chloro-4-(difluoromethyl)-2-iodopyridine
3-(Aminomethyl)-5-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-acetonitrile
4-Bromo-5-cyano-3-(trifluoromethoxy)pyridine-2-sulfonamide
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