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