3-Bromo-2-(difluoromethyl)-5-nitropyridine-6-sulfonamide
6-Bromo-2-(difluoromethyl)-3-nitropyridine-4-sulfonamide
4-(Aminomethyl)-3-bromo-6-(difluoromethyl)pyridine-2-acetic acid
6-Bromo-2-(difluoromethyl)-4-nitropyridine-3-sulfonamide
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