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