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