The facile synthesis of 2-bromoindoles via Cs<sub>2</sub>CO<sub>3</sub>-promoted intramolecular cyclization of 2-(gem-dibromovinyl)anilines under transition-metal-free conditions
作者:Pinhua Li、Yong Ji、Wei Chen、Xiuli Zhang、Lei Wang
DOI:10.1039/c2ra22172a
日期:——
2-Bromoindoles were readily prepared through a facile Cs2CO3-promoted intramolecular cyclization of 2-(gem-bromovinyl)-N-methylsulfonylanilines in excellent yields under transition-metal-free conditions. This methodology could be extended to the synthesis of corresponding 2-chloroindoles. The reaction mechanism suggested that cyclization occurs through a key intermediate, phenylethynyl bromide, followed by cyclization in one-pot.
FeCl<sub>3</sub>-Promoted Annulation of 2-Haloindoles: Switchable Synthesis of Spirooxindole-chromeno[2,3-<i>b</i>]indoles and Spirooxindole-chromeno[3,2-<i>b</i>]indoles
Electrophilic indoles bearing a leaving group at C2 undergo C3-regioselective dearomative hydroaryloxylation and subsequent 1,2-tertiary alkyl migration/aromatization. This is the first ring-opening migration of the spiroindolenine intermediate formed by the C3 nucleophilic addition reaction. Various spiro-oxindole-chromeno[3,2-b]/[2,3-b]indoles were successfully synthesized in excellent yields (up
[EN] NOVEL COMPOUNDS AS NADPH OXIDASE INHIBITORS<br/>[FR] NOUVEAUX COMPOSÉS UTILISÉS EN TANT QU'INHIBITEURS DE LA NADPH OXYDASE
申请人:GENKYOTEX SUISSE SA
公开号:WO2020065048A1
公开(公告)日:2020-04-02
The present invention is related to new compounds, pharmaceutical composition thereof and to their use for the treatment and/or prophylaxis of disorders or conditions related to Nicotinamide adenine dinucleotide phosphate oxidase (NADPH Oxidase). Formula (I).