2-Bromo-5-hydroxy-3-iodo-4-(trifluoromethoxy)pyridine
2-Bromo-5-cyano-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine
6-Bromo-4-cyano-3-(difluoromethyl)-2-(trifluoromethoxy)pyridine
2-Bromo-3-cyano-5-(difluoromethyl)-6-(trifluoromethoxy)pyridine
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