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