Indenoisoquinolines and dihydroindenoisoquinolines are described. In particular, such compounds possessing one or more electron withdrawing substituents are described. The in vitro anticancer activities of these molecules tested in the National Cancer Institute's screen of 55 cell lines is described. The compounds tested for topoisomerase I (top1) inhibition is described.
[EN] NITRO AND AMINO SUBSTITUTED HETEROCYCLES AS TOPOISOMERASE I TARGETING AGENTS<br/>[FR] HETEROCYCLES A SUBSTITUTION NITRO ET AMINO UTILES EN TANT QU'AGENTS DE CIBLAGE DE LA TOPOISOMERASE I
申请人:UNIV RUTGERS
公开号:WO2004014862A1
公开(公告)日:2004-02-19
The invention provides compounds of formula (I): wherein: R1-R5, 'a' and X have any of the meanings defined in the specification and their pharmaceutically acceptable salts. The invention also provides pharmaceutical compositions comprising a compound of formula (I), processes for preparing compounds of formula (I), intermediates useful for preparing compounds of formula (I), and therapeutic methods for treating cancer using compounds of formula (I).
Indenoisoquinolines and dihydroindenoisoquinolines have been synthesized possessing a nitro-substituted isoquinoline ring in an effort to explore the effects of electron-withdrawing substituents on biological activity. The in vitro anticancer activities of these molecules have been tested in the National Cancer Institute's screen of 55 cell lines. The compounds have also been tested for topoisomerase I (topI) inhibition. The results indicate that these substances are a potent class of topI inhibitors with sub-micromolar cytotoxicity mean graph midpoints (MGM) and topI inhibition equal to camptothecin. (C) 2004 Elsevier Ltd. All rights reserved.
Nitro and amino substituted heterocycles as topoisomerase I targeting agents
申请人:LaVoie J. Edmond
公开号:US20070015751A1
公开(公告)日:2007-01-18
The invention provides compounds of formula I:
wherein: R
1
-R
5
,“a” and X have any of the meanings defined in the specification and their pharmaceutically acceptable salts. The invention also provides pharmaceutical compositions comprising a compound of formula I, processes for preparing compounds of formula I, intermediates useful for preparing compounds of formula I, and therapeutic methods for treating cancer using compounds of formula I.