5-Amino-2-(difluoromethyl)-3-fluoropyridine-4-sulfonamide
2-Amino-4-chloro-3-(difluoromethyl)-6-methylpyridine
4-Amino-5-(difluoromethyl)-3-fluoropyridine-2-sulfonamide
4-Amino-3-(difluoromethyl)-2-fluoropyridine-5-sulfonamide
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