Process for the manufacture of tropenol
    3.
    发明授权
    Process for the manufacture of tropenol 有权
    制备托品酚的方法

    公开(公告)号:US06610849B2

    公开(公告)日:2003-08-26

    申请号:US10160702

    申请日:2002-06-03

    IPC分类号: C07D45106

    CPC分类号: C07D451/06 C07D451/10

    摘要: A process for preparing tropenol (I) or an acid addition salt thereof, the process comprising: (a) reducing a scopine ester of formula (II)  wherein R is C1-C4-alkyl or C1-C4-alkylene-phenyl, each optionally substituted by hydroxy or C1-C4-alkoxy, or an acid addition salt or hydrate thereof, using zinc in a suitable solvent in the presence of an activating metal salt; and (b) saponifying the product of (a) using a suitable base to obtain the tropenol of formula (I) or the acid addition salt thereof.

    摘要翻译: 一种制备托品醇(I)或其酸加成盐的方法,所述方法包括:(a)还原式(II)的莨菪碱,其中R是C 1 -C 4 - 烷基或C 1 -C 4亚烷基 - 苯基,各自任选取代 羟基或C 1 -C 4 - 烷氧基,或其酸加成盐或水合物,在活化金属盐的存在下,在合适的溶剂中使用锌; 和(b)使用合适的碱使(a)的产物皂化,得到式(I)的妥尔醇或其酸加成盐。

    Benzimidazole derivative
    5.
    发明授权
    Benzimidazole derivative 有权
    苯并咪唑衍生物

    公开(公告)号:US08455650B2

    公开(公告)日:2013-06-04

    申请号:US13351621

    申请日:2012-01-17

    IPC分类号: C07D401/12

    CPC分类号: C07D401/12

    摘要: The invention relates to a process for preparing the compound of formula 1, a valuable intermediate product in the synthesis of the pharmaceutical active substance dabigatran etexilate.

    摘要翻译: 本发明涉及制备式1化合物的方法,该化合物是合成药物活性物质达比加群酯的有价值的中间产物。

    BENZIMIDAZOLE DERIVATIVE
    6.
    发明申请
    BENZIMIDAZOLE DERIVATIVE 有权
    苯并咪唑衍生物

    公开(公告)号:US20120116089A1

    公开(公告)日:2012-05-10

    申请号:US13351621

    申请日:2012-01-17

    IPC分类号: C07D401/12

    CPC分类号: C07D401/12

    摘要: The invention relates to a process for preparing the compound of formula 1, a valuable intermediate product in the synthesis of the pharmaceutical active substance dabigatran etexilate.

    摘要翻译: 本发明涉及制备式1化合物的方法,该化合物是合成药物活性物质达比加群酯的有价值的中间产物。

    Process for purifying 20(S)-camptothecin
    9.
    发明授权
    Process for purifying 20(S)-camptothecin 有权
    纯化20(S) - 喜树碱的方法

    公开(公告)号:US06476225B2

    公开(公告)日:2002-11-05

    申请号:US10051707

    申请日:2002-01-17

    IPC分类号: C07D4922

    CPC分类号: C07D491/14

    摘要: A process for purifying 20(S)-camptothecin, the process comprising: (a) combining an aqueous base and a starting material containing 20(S)-camptothecin to convert the lactone ring of the 20(S)-camptothecin into a carboxylate salt; (b) hydrogenating to the product of step (a) in the presence of a transition metal catalyst; (c) acidifying the aqueous phase of the product of step (b) to form 20(S)-camptothecin crystals; (d) adding at least one polar aprotic solvent to the product of step (c); and (e) separating off the purified 20(S)-camptothecin crystals.

    摘要翻译: 一种纯化20(S) - 喜树碱的方法,该方法包括:(a)将含水的碱和含有20(S) - 喜树碱的原料混合,将20(S) - 喜树碱的内酯环转化为羧酸盐 (b)在过渡金属催化剂的存在下氢化成步骤(a)的产物;(c)酸化步骤(b)的产物的水相以形成20(S) - 喜树碱晶体;(d) 向步骤(c)的产物中加入至少一种极性非质子溶剂; 和(e)分离纯化的20(S) - 喜树碱晶体。

    Process for preparing sugar acetonides
    10.
    发明授权
    Process for preparing sugar acetonides 失效
    制备糖类化合物的方法

    公开(公告)号:US5627272A

    公开(公告)日:1997-05-06

    申请号:US301099

    申请日:1994-09-06

    CPC分类号: C07H9/04

    摘要: A method of preparing sugar acetonides, such as for example 1,2:5,6-Di-O-isopropylidene-.alpha.-D-glucofuranose, by reacting the corresponding sugar, e.g. D-(+)-glucose, with acetone in the presence of a Lewis acid and a carboxylic acid derivative of general formula ##STR1## wherein X is a leaving group which may be readily replaced by a hydroxyl group.

    摘要翻译: 通过使相应的糖例如1,2-二氧杂环己烷-β-D-吡喃葡萄糖反应制备糖类丙烯酸酯,例如1,2:5,6-二-O-异亚丙基-α-D-呋喃葡萄糖的方法。 D - (+) - 葡萄糖与丙酮在路易斯酸和通式为“IMAGE”的羧酸衍生物存在下反应,其中X是可以容易地被羟基取代的离去基团。