The solvolysis of topotecan in alcohols and acetic anhydride
作者:Jiajun Li、Guolin Wang、Mengjie Dong、Qian Zhang
DOI:10.1016/j.bmcl.2011.02.080
日期:2011.4
Six derivatives of 10-hydroxycamptothecin were prepared via solvolysis of topotecan in corresponding alcohols and acetic anhydride. We attributed the specific reactivity of topotecan to the internal hydrogen-bonding between 10-hydroxy and the nitrogen atom in position 9. As a result the reaction underwent through an intermediate ortho-quionomethlide species to reach equilibrium. Bioactivity screening
[EN] WATER SOLUBLE CAMPTOTHECIN ANALOGUES, PROCESSES AND METHODS
申请人:SMITHKLINE BEECHAM CORPORATION
公开号:WO1992005785A1
公开(公告)日:1992-04-16
(EN) A process for the preparation of water soluble camptothecin analogs, including methods for the preparation of intermediates thereof, and the compounds prepared by said process. Water soluble camptothecin analogs are prepared which may be used for inhibiting the growth of tumor cells sensitive to such analogs.(FR) On décrit un procédé de préparation d'analogues de camptothécine solubles dans l'eau, y compris des procédés de préparation des produits intermédiaires, et les composés préparés selon ledit procédé. Des analogues de camptothécine solubles dans l'eau et pouvant être utilisés pour inhiber la croissance de cellules tumorales sensibles à de tels analogues sont préparés.