4-Amino-2-chloro-5-(difluoromethyl)pyridine-3-sulfonamide
5-Amino-3-chloro-2-(difluoromethyl)pyridine-4-sulfonamide
3-Amino-5-chloro-4-(difluoromethyl)pyridine-2-sulfonamide
2-Amino-5-chloro-4-(difluoromethyl)pyridine-3-acetic acid
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