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