4-Bromo-3-cyano-2-(trifluoromethoxy)pyridine-6-acetonitrile
3-Bromo-2-chloro-5-(trifluoromethoxy)pyridine-4-acetonitrile
4-Bromo-2-iodo-3-nitro-6-(trifluoromethoxy)pyridine
6-Bromo-2-chloro-3-(trifluoromethoxy)pyridine-4-acetonitrile
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