4-Bromo-2-hydroxy-3-(trifluoromethoxy)pyridine-6-acetonitrile
3-Bromo-5-chloro-2-(trifluoromethoxy)pyridine-6-acetonitrile
3-Bromo-4-chloro-6-(trifluoromethoxy)pyridine-2-acetonitrile
3-Bromo-5-hydroxy-2-(trifluoromethoxy)pyridine-6-acetonitrile
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