3,4-Dibromo-2-(difluoromethyl)pyridine-5-sulfonamide
5-(Difluoromethyl)-3-nitropyridine-2-sulfonamide
2-(Aminomethyl)-3-(difluoromethyl)pyridine-4-carboxylic acid
5-(Difluoromethyl)-4-nitropyridine-2-sulfonamide
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