Indenoindolone derivatives as topoisomerase II–inhibiting anticancer agents
摘要:
Based on known heterocyclic topoisomerase II inhibitors and anticancer agents, various indenoindolone derivatives were predicted as potential topoisomerase II-inhibiting anticancer agents. They are hydrazones, (thio)semicarbazones, and oximes of indenoindolones, and indenoindolols. These derivatives with suitable substitutions exhibited potent specific inhibition of human DNA TopoII alpha, while not showing inhibition of topoisomerase I and DNA intercalation, despite the fact that parent indenoindolones are known poor/moderate inhibitors of topoisomerase II. The potent topoisomerase II inhibitor indenoindolone derivatives exhibited good anticancer activities compared to etoposide and 5-fluorouracil, and relatively low toxicity to normal cells. These derivatizations of indenoindolones were found to result in enhancement of anticancer activities. (C) 2012 Elsevier Ltd. All rights reserved.
Facile Access to 3-Acylindoles through Palladium-Catalyzed Addition of Indoles to Nitriles: The One-Pot Synthesis of Indenoindolones
作者:Yuanhong Ma、Jingsong You、Feijie Song
DOI:10.1002/chem.201203354
日期:2013.1.21
The palladium‐catalyzed addition of indoles to nitriles affords 3‐acylindoles. The reaction proceeds with high selectivity, wide substrate scope, broadly available starting materials, and an operationally simple procedure. Combination with the palladium‐catalyzed intramolecular oxidative coupling of 3‐indolylarylketone gives access to indenoindolones in a one‐pot synthesis.
possessing fused seven-membered rings were efficiently synthesized via the Pd-catalyzed intramolecular carbopalladation-annulation of 3-(2-iodobenzyl)-indoles and alkynes. A remarkable base effect on the chemoselectivity of this transformation has been found: switching from Et(3)N to CsOAc completely reverses the reaction path to intramolecular cyclization forming fused five-membered rings.
Friedel-Crafts 3-(2-Bromobenzoylation) of Indoles and Intramolecular Direct Arylation: An Efficient Route to Indenoindolones
作者:Sankar Guchhait、Maneesh Kashyap
DOI:10.1055/s-0031-1289663
日期:2012.2
Friedel-Crafts reaction of 2-bromobenzoyl chlorides with indoles to give 3-(2-bromobenzoyl)indoles and their palladium-catalyzed intramolecular direct arylation to give indenoindolones, has been developed. 3-(2-Bromobenzoyl)indoles were crucial intermediates; the method was successful with N-unprotected or N-protected indoles. This approach affords a convenient preparation of diverse substituted and functionalized
Pd-Catalyzed Cyclocarbonylation of 2-(2-Bromoaryl)indoles with CO as a C1 Source: Selective Access to 6 <i>H</i>-Isoindolo[2,1-<i>a</i>]indol-6-ones and Indeno[1,2-<i>b</i>]indol-10(5 <i>H</i>)-ones
作者:Shenghai Guo、Li Tao、Fang Wang、Xuesen Fan
DOI:10.1002/asia.201601067
日期:2016.11.7
A highly efficient and regioselectivesyntheticroute to 6 H‐isoindolo[2,1‐a]indol‐6‐ones and indeno[1,2‐b]indol‐10(5 H)‐ones through the Pd‐catalyzed cyclocarbonylation of 2‐(2‐bromoaryl)indoles under atmospheric CO pressure has been achieved. Notably, the regioselectivity of the reaction was exclusively dependent on the structural characteristics of the indole substrates. With N‐unsubstituted indoles
通过2的Pd催化环羰基化反应制得6 H-异吲哚并[2,1- a ]吲哚-6-和茚并[1,2 - b ] indol-10(5 H)-1的高效且区域选择性的合成途径 在大气压CO压力下获得了(2-溴芳基)吲哚。值得注意的是,反应的区域选择性仅取决于吲哚底物的结构特征。以N-未取代的吲哚为起始原料,该反应获得了6 H-异吲哚并[2,1 - a ]吲哚-6-酮,收率为优良。另一方面,以N-取代的吲哚为底物,反应得到茚并[1,2 - b ] indol-10(5 H)-以高度区域选择性的方式进行。
一种茚[1,2-b]吲哚-10(5H)-酮类化合物的合 成方法
申请人:河南师范大学
公开号:CN106349150B
公开(公告)日:2018-12-28
本发明公开了一种茚[1,2‑ b ]吲哚‑10(5 H )‑酮类化合物的合成方法。本发明的技术方案要点为:以 N ‑取代‑2‑(2‑溴芳基)‑1 H ‑吲哚类化合物和CO为起始原料,以醋酸钯为催化剂,以DABCO为碱,以正丁基二(1‑金刚烷基)膦为配体,以二甲基亚砜或N‑甲基吡咯烷酮为溶剂,在反应容器中于120℃加热搅拌反应制得目标产物茚[1,2‑ b ]吲哚‑10(5 H )‑酮类化合物。本发明具有反应条件温和、起始原料简单易制备、底物适用范围广和操作简单等优点。