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    • 1. 发明公开
    • PROCESSES FOR THE PRODUCTION OF OPTICALLY ACTIVE COMPOUNDS HAVING SUBSTITUENTS AT THE 2-POSITION
    • PROCESS FOR在2-位来制备光学活性化合物的取代基
    • EP1600438A1
    • 2005-11-30
    • EP04714501.6
    • 2004-02-25
    • KANEKA CORPORATION
    • YAMAMOTO, ShogoTAKEDA, ToshihiroFUSE, YoshihideUEDA, Yasuyoshi
    • C07C319/14C07C51/43C07C57/58C07C319/28C07C323/56
    • C07B53/00C07B2200/07C07C51/363C07C319/14C07C57/58C07C323/56
    • The present invention provides a process for producing an optically active compound having a thio group at the 2-position important for manufacturing medicines. An optically active compound having a hydroxyl group at the 2-position is chlorinated with inversion of the configuration at the 2-position, and the resultant optically active compound having a chlorine atom at the 2-position is reacted with a metal thiolate to introduce a thio group with inversion of the configuration at the 2-position. This process is capable of minimizing racemization and producing an optically active compound having a thio group at the 2-position at low cost in high yield. When the optically active compound having a chlorine atom at the 2-position is reacted with the metal thiolate in coexistence with water in the reaction system, the optically active compound having a thio group at the 2-position with higher optical purity can be produced in higher yield. An optically active carboxylic acid having a thio group at the 2-position is crystallized in the presence of an aliphatic hydrocarbon solvent and/or a sulfur-containing solvent to effectively remove coexistent impurities such as an optical isomer and the like, thereby producing crystals of an optically active carboxylic acid having a thio group at the 2-position with higher purity.
    • 本发明提供了用于以2位用于制造药物重要具有硫基光学活性化合物的制造方法。 在2-位上的羟基基团的光学活性化合物是氯化与在2-位的构型的反转,将所得具有在2-位上的氯原子的光学活性化合物与金属硫醇盐引入 硫基与在2位上的构型反转。 这个过程能够最小化的外消旋化,并在光学活性的化合物在生产以高收率低成本在具有2位上含有硫基的。 当具有在2-位上的氯原子的光学活性化合物与金属硫醇盐在反应体系中反应。在共存水,可以在产生在具有较高光学纯度的2-位上具有一个硫基的光学活性化合物 更高的产量。 的诸如旋光异构体和类似物,从而产生结晶:具有在2-位上含有硫基的光学活性羧酸在脂族烃溶剂和/或溶剂来有效地去除共存的杂质的含硫的存在下结晶化 的光学具有硫基活性羧酸在具有更高纯度的2-位。
    • 3. 发明公开
    • PROCESS FOR PRODUCTION OF ARALKYLOXYPYRROLIDINE DERIVATIVE
    • 生产脂酰氧基吡咯烷衍生物的方法
    • EP1947083A1
    • 2008-07-23
    • EP06796649.9
    • 2006-08-22
    • Kaneka Corporation
    • TAKEDA, ToshihiroOHNUKI, MasatoshiKISHIMOTO, Narumi
    • C07D207/12
    • C07D207/12Y02P20/55
    • The present invention provides a process for producing a 3-aralkyloxypyrrolidine derivative which is important for production of pharmaceutical products and the like. In the present invention, a N-protected-3-hydroxypyrrolidine is converted into a N-protected-3-aralkyloxypyrrolidine by allowing an aralkyl halide to act in the presence of a base and at least one of a metal halide and a phase-transfer catalyst followed by deprotecting a N-protecting group to convert it to a 3-aralkyloxypyrrolidine derivative and subsequently treating the derivative in a solvent containing a polar solvent, thereby obtaining the 3-aralkyloxypyrrolidine derivative as a crystal. According to the present invention, a 3-aralkyloxypyrrolidine derivative of high purity can be produced conveniently and efficiently on an industrial scale.
    • 本发明提供了一种生产药用产品等重要的3-芳烷氧基吡咯烷衍生物的方法。 在本发明中,通过使芳烷基卤化物在碱的存在下和至少一种金属卤化物和相转移作用下将N-保护的-3-羟基吡咯烷转化为N-保护的-3-芳烷氧基吡咯烷 然后去保护N-保护基团,将其转化为3-芳烷氧基吡咯烷衍生物,随后在含有极性溶剂的溶剂中处理衍生物,由此得到3-芳烷氧基吡咯烷衍生物的晶体。 根据本发明,高纯度的3-芳烷氧基吡咯烷衍生物可以在工业规模上方便和有效地生产。
    • 6. 发明授权
    • PROCESS FOR PRODUCTION OF ARALKYLOXYPYRROLIDINE DERIVATIVE
    • 生产脂酰氧基吡咯烷衍生物的方法
    • EP1947083B1
    • 2010-11-10
    • EP06796649.9
    • 2006-08-22
    • Kaneka Corporation
    • TAKEDA, ToshihiroOHNUKI, MasatoshiKISHIMOTO, Narumi
    • C07D207/12
    • C07D207/12Y02P20/55
    • Disclosed is a process for production of an aralkyloxypyrrolidine derivative which is important for the production of a pharmaceutical or the like. A 3-aralkyloxypyrrolidine derivative can be produced in the form of a crystal by a process comprising reacting an N-protected-3-hydroxypyrrolidine with a halogenated aralkyl in the presence of a base and a metal halide and/or a phase transfer catalyst to give an N-protected-3-aralkyloxypyrrolidine, performing the deprotection of the N-protecting group in the product to give a 3-aralkyloxypyrrolidine derivative, and treating the product in a solvent containing a polar solvent. The process can produce a highly pure 3-aralkyloxypyrrolidine derivative in a simple manner, with good efficiency, and in an industrial scale.
    • 公开了一种生产药物等重要的芳烷氧基吡咯烷衍生物的方法。 3-芳烷氧基吡咯烷衍生物可以通过包括在碱和金属卤化物和/或相转移催化剂存在下使N-保护的-3-羟基吡咯烷与卤代芳烷基反应得到晶体形式,得到 N-保护的-3-芳烷氧基吡咯烷,对产物中的N-保护基进行脱保护得到3-芳烷氧基吡咯烷衍生物,并在含有极性溶剂的溶剂中处理产物。 该方法可以以简单的方式高效纯化并以工业规模生产高纯度的3-芳烷氧基吡咯烷衍生物。
    • 7. 发明公开
    • PROCESS FOR PRODUCTION OF OPTICALLY ACTIVE 2-HALOGENO- CARBOXYLIC ACIDS
    • VERFAHREN ZURHERSTELLUNG OPTISCH AKTIVER 2-HALOGENCARBONSÄUREN
    • EP1481960A1
    • 2004-12-01
    • EP03737476.6
    • 2003-02-04
    • KANEKA CORPORATION
    • YAMASHITA, KokiTAKEDA, ToshihiroUEDA, Yasuyoshi
    • C07C51/363C07C53/19C07C51/48C07C51/487C07C51/43C07C51/41
    • C07C51/412C07C51/363C07C51/43C07C53/19
    • The invention provides processes for producing efficiently optically active 2-halogenocarboxylic acids useful in the preparation of drugs or the like and salts thereof with amines. Specifically, an optically active 2-halogenocarboxylic acid is produced by halogenating an optically active amino acid in water in the presence of a hydrophobic organic solvent and nitrous acid with the configuration retained and with the racemization inhibited through the removal of 2-hydroxy- bromocarboxylic acid formed as a by-product; the obtained optically active 2-halogenocarboxylic acid is transferred to an aqueous phase by converting it into a salt thereof with a base, followed by the removal of the organic phase; and the optically active 2-halogenocarboxylic acid is transferred again to an organic solvent phase, followed by the removal of the aqueous phase, whereby an optically active 2-halogenocarboxylic acid is obtained through the removal of a halogen component. Further, a high-quality salt of an optically active 2-halogenocarboxylic acid with an amine can be obtained by a crystallization method wherein the amine is added over the period of 1/2 hour or longer either continuously or in portions and/or wherein the crystallization solvent consists of a hydrophobic organic solvent and a hydrophilic organic solvent.
    • 光学活性2-卤代羧酸(II)的制备包括在疏水性有机溶剂和亚硝酸的存在下在水中卤化光学活性氨基酸(I),并且通过抑制外消旋化保留配置。 式(II)的光学活性2-卤代羧酸的制备包括在疏水性有机溶剂和亚硝酸的存在下在水中卤化式(I)的光学活性氨基酸,并且通过抑制外消旋化保留该构型。 R:任选取代的烷基; X:晕 还包括以下独立权利要求:(1)(II)的盐结晶方法包括连续地或部分地和/或通过使用疏水性有机溶剂(优选脂族烃)和亲水有机溶剂添加胺至少30分钟 溶剂(优选1-4C醇)作为结晶溶剂; 和(2)(II)的二环己基胺盐。