An unexpected route toward the synthesis of spiro-benzo[b]acridine-furan derivatives
摘要:
A facile and straightforward procedure for the synthesis of spiro-benzo[b]acridine-6,2'-furan derivatives via the reaction between benzo[b]acridine-6,11-dione, electron-deficient acetylenic compounds, and an isocyanide is described. The benzo[b]acridine-6,11-dione is obtained from the reaction between 2-(aminomethyl)aniline and 2-hydroxynaphthalene-1,4-dione via an unexpected reaction pathway. The products are synthesized in medium to high yields and no complicated purification is required. (C) 2012 Elsevier Ltd. All rights reserved.
Intramolecular Michael-type addition of azadienes to 1,4-naphthoquinones instead of Aza-Diels–Alder cycloaddition: a synthesis of ascididemin
作者:Juan M. Cuerva、Diego J. Cárdenas、Antonio M. Echavarren
DOI:10.1039/b202555h
日期:2002.5.23
α,β-Unsaturated hydrazones tethered by an amino group to 1,4-naphthoquinone or quinoline-5,8-dione do not react by intramolecular aza-DielsâAlder cycloaddition. Instead, these substrates cyclize to form benzo[b]acridine-6,11-dione or pyrido[2,3-b]acridine-5,12-dione derivatives, respectively. This route leads to a highly concise synthesis of the pyridoacridine alkaloid ascididemin.
New synthesis of pyridoacridines based on an intramolecular aza-Diels–Alder reaction followed by an unprecedented rearrangement†
作者:Juan M. Cuerva、Diego J. Cárdenas、Antonio M. Echavarren
DOI:10.1039/a905234h
日期:——
The synthesis of pyridoacridines related to the ascididemins can be performed by an intramolecular aza-DielsâAlder cycloaddition of an α,β-unsaturated hydrazone to a quinone followed by an unprecedented rearrangement to yield benzo- or pyrido-[b]acridine-6,11-diones.
Etienne; Staehelin, Bulletin de la Societe Chimique de France, 1954, p. 748,751
作者:Etienne、Staehelin
DOI:——
日期:——
DERIVES D'ASCIDIDEMINE ET LEURS APPLICATIONS THERAPEUTIQUES
申请人:LABORATOIRE L. LAFON
公开号:EP1202992A2
公开(公告)日:2002-05-08
[EN] ASCIDIDEMIN DERIVATIVES AND THEIR THERAPEUTIC APPLICATIONS<br/>[FR] DERIVES D'ASCIDIDEMINE ET LEURS APPLICATIONS THERAPEUTIQUES
申请人:LAFON LABOR
公开号:WO2001012631A2
公开(公告)日:2001-02-22
La présente invention concerne une composition pharmaceutique comprenant une quantité efficace d'un composé choisi parmi les composés de formules (I) et (Ia), dans lesquelles, R1, R2, R3, R4, R5, R6 et R7 sont tels que définis à la revendication 1. Ces composés possèdent des propriétés cytotoxiques intéressantes conduisant à une application thérapeutique comme médicaments anti-tumoraux.