Preparation of water soluble camptothecin derivatives
    1.
    发明授权
    Preparation of water soluble camptothecin derivatives 失效
    水溶性喜树碱衍生物的制备

    公开(公告)号:US5342947A

    公开(公告)日:1994-08-30

    申请号:US960498

    申请日:1992-10-09

    IPC分类号: C07D491/22 C07D491/147

    CPC分类号: C07D491/22

    摘要: The present invention relates to the synthesis of water soluble, camptothecin derivatives of formula (I), ##STR1## wherein: n represents the integer 1 or 2;R.sup.1 represents independently, hydrogen, lower alkyl, (C.sub.3-7)cycloalkyl, (C.sub.3-7)cycloalkyl lower alkyl, lower alkenyl, hydroxy lower alkyl, lower alkoxy lower alkyl; andR.sup.2 represents hydrogen andthe pharmaceutically acceptable salts thereof.

    摘要翻译: 本发明涉及式(I)的水溶性喜树碱衍生物的合成,其中:n表示整数1或2; R 1独立地表示氢,低级烷基,(C 3-7)环烷基,(C 3-7)环烷基低级烷基,低级烯基,羟基低级烷基,低级烷氧基低级烷基; 和R2代表氢及其药学上可接受的盐。

    Process for the synthesis of cyclopentene derivatives of purines
    2.
    发明授权
    Process for the synthesis of cyclopentene derivatives of purines 失效
    合成环丙基衍生物的方法

    公开(公告)号:US5144034A

    公开(公告)日:1992-09-01

    申请号:US505969

    申请日:1990-04-06

    IPC分类号: C07D473/00 C07F7/08

    CPC分类号: C07F7/0818 C07D473/00

    摘要: This invention relates to a new process for preparing certain optically active cyclopentene derivatives and novel intermediates used in this process. In particular, the invention concerns the synthesis of the 1'R-cis isomer of carbovir, (1'R-cis)-2-amino-1,9-dihydro-9[4-(hydroxymethyl)-2-cyclopenten-1-yl]-6H-purin-6-one, an antiviral agent.

    摘要翻译: 本发明涉及制备某些光学活性环戊烯衍生物的新方法和用于该方法的新型中间体。 特别地,本发明涉及羰基维生素的1'R-顺式异构体的合成,(1'R-顺式)-2-氨基-1,9-二氢-9- [4-(羟基甲基)-2-环戊烯-1-酮 - 基] -6H-嘌呤-6-酮,抗病毒剂。