会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明授权
    • Preparation of a camptothecin derivative by intramolecular cyclization
    • 通过分子内环化制备喜树碱衍生物
    • US06462196B1
    • 2002-10-08
    • US09552214
    • 2000-04-19
    • Francis Gerard FangEdward McDonald HuieShiping XieDaniel L. Comins
    • Francis Gerard FangEdward McDonald HuieShiping XieDaniel L. Comins
    • C07D41304
    • C07D213/64C07D213/69C07D491/04
    • The present invention relates to a method for the preparation for camptothecin and camptothecin-like compounds and to novel intermediates used in this preparation. In particular, the invention provides a process for the preparation of the camptothecin derivative of formula (I′) known by the chemical name “7-(4-methylpiperazino-methylene)-10,11-ethylenedioxy-20(R,S)-camptothecin”, which comprises cyclising the compound of formula (II′), wherein X is halogen, particularly chloro, bromo, or iodo; and when the compound of formula (I′) is obtained as a mixture of enantiomers optionally resolving the mixture to obtain the desired enantiomer; and/or if desired, converting the resulting compound of formula (I′) or a salt thereof into a physiologically acceptable salt or solvate thereof.
    • 本发明涉及一种制备喜树碱和喜树碱样化合物的方法以及本制剂中使用的新型中间体。 特别地,本发明提供制备式(I')的喜树碱衍生物的方法,该化合物名称为“7-(4-甲基哌嗪基 - 亚甲基)-10,11-亚乙基二氧基-20(R,S) - 喜树碱“,其包括使式(II')化合物环化,其中X是卤素,特别是氯,溴或碘; 并且当以对映异构体的混合物获得式(I')化合物时,任选地拆分混合物以获得所需的对映异构体; 和/或如果需要,将所得的式(I')化合物或其盐转化为其生理学上可接受的盐或溶剂化物。
    • 6. 发明授权
    • Preparation of a camptothecin derivative by intramolecular cyclisation
    • 通过分子内环化制备喜树碱衍生物
    • US06821982B2
    • 2004-11-23
    • US10395806
    • 2003-03-24
    • Francis Gerard FangEdward McDonald HuieShiping XieDaniel L. Comins
    • Francis Gerard FangEdward McDonald HuieShiping XieDaniel L. Comins
    • A61K31436
    • C07D491/22C07D519/00
    • The present invention relates to a method for the preparation for camptothecin and camptothecin-like compounds and to novel intermediates used in this preparation. In particular, the invention provides a process for the preparation of the camptothecin derivative of formula (I′) known by the chemical name “7-(4-methylpiperazino-methylene)-10,11-ethylenedioxy-20(R,S)-camptothecin”, which comprises cyclising the compound of formula (II′), wherein X is halogen, particularly chloro, bromo, or iodo; and when the compound of formula (I′) is obtained as a mixture of enantiomers optionally resolving the mixture to obtain the desired enantiomer; and/or if desired, converting the resulting compound of formula (I′) or a salt thereof into a physiologically acceptable salt or solvate thereof.
    • 本发明涉及一种制备喜树碱和喜树碱样化合物的方法以及本制剂中使用的新型中间体。 特别地,本发明提供制备式(I')的喜树碱衍生物的方法,该化合物名称为“7-(4-甲基哌嗪基 - 亚甲基)-10,11-亚乙基二氧基-20(R,S) - 喜树碱“,其包括使式(II')化合物环化,其中X是卤素,特别是氯,溴或碘; 并且当以对映异构体的混合物获得式(I')化合物时,任选地拆分混合物以获得所需的对映异构体; 和/或如果需要,将所得的式(I')化合物或其盐转化为其生理学上可接受的盐或溶剂化物。