L-nucleic acid derivatives and process for the synthesis thereof
    3.
    发明授权
    L-nucleic acid derivatives and process for the synthesis thereof 有权
    L-核酸衍生物及其合成方法

    公开(公告)号:US07125983B2

    公开(公告)日:2006-10-24

    申请号:US10433004

    申请日:2001-11-29

    IPC分类号: C07H19/06 C07H19/09

    摘要: A novel method has been found to produce 2,2′-anhydro-1-(β-L-arabinofuranosyl)thymine as a novel useful intermediate compound. A novel method has been further found to produce thymidine from 2,2′-anhydro-1-(β-L-arabinofuranosyl)thymine. A novel method has been further found to L-2′-deoxyribose derivatives as a useful synthetic intermediate through L-2,2′-anhydro-5,6-dihydrocyclouridine derivative. According to these methods, synthesis of various L-nucleic acid derivatives, synthesis of which has been difficult till now.

    摘要翻译: 已经发现一种新的方法生产2,2'-脱水-1-(β-L-阿拉伯呋喃糖基)胸腺嘧啶作为新的有用的中间体化合物。 已经进一步发现一种从2,2'-脱水-1-(β-L-阿拉伯呋喃糖基)胸腺嘧啶产生胸苷的新方法。 通过L-2,2'-脱水-5,6-二氢环尿苷衍生物,进一步发现L-2'-脱氧核糖衍生物作为有用的合成中间体的新方法。 根据这些方法,合成各种L-核酸衍生物,其合成迄今难以实现。

    Method of producing benzamide derivatives
    4.
    发明授权
    Method of producing benzamide derivatives 有权
    苯甲酰胺衍生物的制备方法

    公开(公告)号:US06320078B1

    公开(公告)日:2001-11-20

    申请号:US09359368

    申请日:1999-07-23

    IPC分类号: C07C23305

    摘要: In the case that a selectively monoacylated phenylenediamine derivative which is useful as any of medicines, agricultural chemicals, animal drugs and the intermediates of chemicals is prepared by reacting a benzoic acid derivative with a phenylenediamine derivative, the benzoic acid derivative is converted into a benzoyl imidazole derivative and this benzoyl imidazole derivative is then reaction with the phenylenediamine derivative, whereby the improvement of a preparation efficiency and the high selectivity of the monoacylation can be achieved, the steps of protection and deprotection being omitted.

    摘要翻译: 在苯甲酸衍生物与苯二胺衍生物反应制备可用作药物,农药,动物药物和化学药品中间体的选择性单酰化苯二胺衍生物的情况下,将苯甲酸衍生物转化成苯甲酰咪唑 衍生物,然后将苯甲酰咪唑衍生物与苯二胺衍生物反应,从而可以实现制备效率的提高和单酰化的高选择性,省略了保护和脱保护的步骤。

    Process for production of glycide derivative
    5.
    发明授权
    Process for production of glycide derivative 失效
    制备糖苷衍生物的方法

    公开(公告)号:US5463061A

    公开(公告)日:1995-10-31

    申请号:US175397

    申请日:1994-01-13

    CPC分类号: C07D303/22 C07D405/12

    摘要: A glycide derivative represented by the following general formula (I) is produced by reacting a hydroxyaryl or heteroaryl represented by A-OH with glycidyl tosylate in the presence of a cesium base as a base. Thereby, an aryl glycidyl ether derivative, which is an important intermediate for drug production, can be produced easily and reliably. Particularly when optically active glycidyl tosylate is used, said compound can be obtained at a high optical purity. ##STR1## wherein A represents an aryl group or a heteroaryl group.

    摘要翻译: PCT No.PCT / JP93 / 00626 Sec。 371日期1994年1月13日 102(e)日期1994年1月13日PCT提交1993年5月13日PCT公布。 公开号WO93 / 23386 日期:1月25日。由以下通式(I)表示的糖苷衍生物是通过使羟基芳基或由A-OH表示的杂芳基与甲苯磺酸缩水甘油酯在铯基作为碱的存在下反应制备的。 因此,可以容易且可靠地制造作为药物生产的重要中间体的芳基缩水甘油醚衍生物。 特别是当使用光学活性的甲苯磺酸缩水甘油酯时,可以高光学纯度获得所述化合物。 (I)其中A表示芳基或杂芳基。