3-(Difluoromethyl)-2-hydroxypyridine-5-sulfonamide
3-(Difluoromethyl)-2-hydroxypyridine-4-sulfonamide
6-(Difluoromethyl)-2-hydroxypyridine-3-sulfonamide
2-(Difluoromethyl)-6-hydroxypyridine-4-sulfonamide
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