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    • 9. 发明公开
    • METHODS OF SYNTHESIS OF SCYLLITOL AND RELATED COMPOUNDS
    • VERFAHREN ZUR SYNTHESE VON SCYLLITOL UND VERWANDTE VERBINDUNGEN
    • EP2663540A1
    • 2013-11-20
    • EP11791073.7
    • 2011-10-13
    • Elan Pharmaceuticals, Inc.
    • GREENFIELD, Scott
    • C07C29/132C07C35/14
    • C07C29/12C07C29/56C07C29/78C07C29/92C07C2601/14C07C35/16
    • Methods of synthesis of scyllitol diborate and related compounds are provided, including methods that are performed in all-aqueous solutions. Also provided are methods in which the reaction products are recycled to increase the efficiency of the process. The methods include the steps of conversion of a solution of inositol to scyllitol, conversion of scyllitol in the solution to scyllitol diborate, and isolation of the scyllitol diborate from the solution. The scyllitol diborate is reacted to form substantially pure scyllitol diborate, and the remaining solution is efficiently recycled to scyllitol diborate, then to additional substantially pure scyllitol. This scyllitol diborate recycling step can be applied to a variety of processes to improve the yield of scyllitol. The methods are highly efficient and result in large scale reaction products of high purity.
    • 提供了合成辛二醇二硼酸盐和相关化合物的方法,包括在全水溶液中进行的方法。 还提供了将反应产物再循环以提高该方法的效率的方法。 所述方法包括将肌醇溶液转化成西欧糖醇的步骤,将溶液中的辛二醇溶液转化为青霉烷醇二硼酸酯,并从该溶液中分离出来的二水合二环己糖醇盐。 反应所述的青霉醇二硼酸酯形成基本上纯的鲨烯糖醇二硼酸盐,并将剩余的溶液有效地再循环至雪利醇醇二硼酸盐,然后再添加至另外基本上纯的鲨烯醇。 该Scyllitol二硼酸盐回收步骤可以应用于各种工艺以提高石蜡醇的产率。 该方法高效,高纯度的大规模反应产物。