Several 6-substituted tetrahydrocarbazole derivatives were designed, synthesized and evaluated for the antibacterialactivities against Staphylococcus aureus Newman strain. Subsequently, 2,4-diaminopyrimidine scaffold was merged with the tetrahydrocarbazole unit to generate a series of novel hybrid derivatives and the antibacterialactivities were also investigated. Among these novel hybrids, compound
设计,合成和评价了几种6-取代的四氢咔唑衍生物对金黄色葡萄球菌Newman菌株的抗菌活性。随后,将2,4-二氨基嘧啶支架与四氢咔唑单元合并以生成一系列新型杂化衍生物,并研究了其抗菌活性。在这些新型杂种中,化合物12c对金黄色葡萄球菌Newman和大肠杆菌AB1157菌株的活性最强,MIC为0.39–0.78μg/ mL 。另外,化合物12c对一组金黄色葡萄球菌的多重耐药菌株表现出低MIC值。
Copper-catalyzed tri- or tetrafunctionalization of alkenylboronic acids to prepare tetrahydrocarbazol-1-ones and indolo[2,3-<i>a</i>]carbazoles
作者:Hong-Yan Bi、Cheng-Jing Li、Cui Wei、Cui Liang、Dong-Liang Mo
DOI:10.1039/d0gc01514h
日期:——
We describe a cascade strategy for tri- or tetrafunctionalization of alkenylboronic acids to prepare diverse tetrahydrocarbazol-1-ones and indolo[2,3-a]carbazoles in good yields with N-hydroxybenzotriazin-4-one (HOOBT) and arylhydrazines as oxygen and nitrogen sources, respectively. Mechanistic studies reveal that the domino reaction undergoes the copper-catalyzed Chan–Lam reaction, [2,3]-rearrangement
我们描述了烯基硼酸的三或四官能化的级联策略,以制备具有N的高收率的各种四氢咔唑-1-酮和吲哚[2,3- a ]咔唑-羟基苯并三嗪-4-酮(HOOBT)和芳基肼分别作为氧和氮源。机理研究表明,多米诺反应在一锅法反应中经过五个步骤,经历了铜催化的Chan-Lam反应,[2,3]重排,亲核取代,氧化和顺序[3,3]重排。该反应显示出广泛的底物范围,并且可以耐受多种官能团。更重要的是,该反应易于以克为单位进行,并且产物可以通过简单的萃取,洗涤和重结晶进行纯化,而无需快速柱色谱。本协议的特点是易于获得的起始原料,高位标记的功能化,一锅中的五步串联,多个C–C / C–O / C–N键形成以及吲哚图案的多样性。
Convenient and Efficient Synthesis of 1-Oxo-1,2,3,4-tetrahydrocarbazoles via Fischer Indole Synthesis
作者:Rong Sheng、Li Shen、You-Qin Chen、Yong-Zhou Hu
DOI:10.1080/00397910802499567
日期:2009.2.25
Abstract A convenient synthesis of 1-oxo-1,2,3,4-tetra-hydrocarbazoles has been developed by reaction of 2-aminocyclohexanone hydrochlorides with various phenylhydrazine hydrochlorides viaFischerindolesynthesis under mild conditions. The method is more satisfactory in terms of the easy availability of starting materials and the simple one-pot operation.
Les tétrahydrocarbazolones 15-27 sont obtenues par cyclisation des phénylhydrazones 2-14. La cyclisation de ces carbazolones 15-27 qui est opérée au moyen du triformarnidométhane dans le formamide fournit les dihydropyrimidinocarbazoles 28-40. Les spectres de rmn enregistrés dans le DMSO-d6 confirment la structure des dérivés obtenus.
Tetrahydrocarbazoles as Active Agents for Inhibiting VEGF Production by Translational Control
申请人:Lennox William
公开号:US20090042866A1
公开(公告)日:2009-02-12
The present invention relates to methods, compounds, and compositions for inhibiting angiogenesis. More particularly, the present invention relates to methods, compounds, and compositions for inhibiting VEGF production.