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