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    • 3. 发明申请
    • PURE 1,2-BENZISOXAZOLE-3-METHANE-SULFONIC ACID SODIUM SALT AND PURIFICATION PROCESS
    • 纯1,2-苯并恶唑-3-甲磺酸 - 磺酸钠盐和纯化方法
    • WO2007016209A2
    • 2007-02-08
    • PCT/US2006029121
    • 2006-07-28
    • TEVA PHARMATEVA PHARMAMENDELOVICI MARIOARASHENKAR NATALIA
    • MENDELOVICI MARIOARASHENKAR NATALIA
    • C07D261/20A61K31/423A61P25/08
    • C07D261/20
    • The present invention provides chemically pure sodium salt of 1,2-benzisoxazofe-3-methane-sulfonic acid, the sodium salt of 1,2-benzisoxazole-3-methane-sulfonic acid of high assay, or chemically pure sodium salt of 1,2-benzisoxazole-3-methane-sulfonic acid of high assay, and processes for preparing the same via purification. The present invention also provides monohydrate form of the chemically pure sodium salt of 1,2-benzisoxazole-3-methane-sulfonic acid, the sodium salt of 1,2-benzisoxazole-3-methane-sulfonic acid of high assay, or chemically pure sodium salt of 1,2-benzisoxazole-3-methane-sulfonic acid of high assay. Furthermore, the present invention provides anhydrous form of the chemically pure sodium salt of 1,2-benzisoxazole-3-methane-sulfonic acid, the sodium salt of 1,2-benzisoxazole-3-methane-sulfonic acid of high assay, or chemically pure sodium salt of 1,2-benzisoxazole-3-methane-sulfonic acid of high assay. One of the embodiments of the present invention is directed to a process for preparing zonisamide using the chemically pure sodium salt of 1,2-benzisoxazole-3-methane-sulfonic acid, the sodium salt of 1,2-benzisoxazole-3- methane-sulfonic acid of high assay, or chemically pure sodium salt of 1,2-benzisoxazole-3-methane-sulfonic acid of high assay.
    • 本发明提供了1,2-苯并异恶唑-3-甲磺酸的化学纯钠盐,高分析的1,2-苯并异恶唑-3-甲磺酸的钠盐或1的化学纯钠盐, 高分析的2-苯并异恶唑-3-甲磺酸及其制备方法。 本发明还提供1,2-苯并异恶唑-3-甲磺酸的化学纯钠盐的一水合物形式,高分析的1,2-苯并异恶唑-3-甲磺酸的钠盐或化学纯的 高分析的1,2-苯并异恶唑-3-甲磺酸的钠盐。 此外,本发明提供了无水形式的1,2-苯并异恶唑-3-甲磺酸的化学纯钠盐,高分析的1,2-苯并异恶唑-3-甲磺酸的钠盐或化学 高分析的1,2-苯并异恶唑-3-甲磺酸的纯钠盐。 本发明的一个实施方案涉及使用1,2-苯并异恶唑-3-甲磺酸的化学纯钠盐,1,2-苯并异恶唑-3-甲烷磺酸钠盐, 高分析的磺酸,或高分析的1,2-苯并异恶唑-3-甲磺酸的化学纯钠盐。