在铂催化的反应中,一些容易获得的Boc保护的2-(3-甲氧基-1-丙炔基)苯胺和硝酮可提供[1,2]恶嗪基[5,4- b ]吲哚。报道了十二个产量为41–95%的例子。可以容忍不同的取代基,例如硝基,三氟甲基,氟,溴和酯基。关于机理,该反应可能结合了最初的分子内环化/消除为乙烯基类胡萝卜素物质,以及随后与硝酮的逐步的分子间[3 + 3]环加成反应。
[EN] FACTOR XIa INHIBITORS<br/>[FR] INHIBITEURS DE FACTEUR XIA
申请人:MERCK SHARP & DOHME
公开号:WO2016168098A1
公开(公告)日:2016-10-20
The present invention provides a compound of Formula (I); and pharmaceutical compositions comprising one or more said compounds, and methods for using said compounds for treating or preventing thromboses, embolisms, hypercoagulability or fibrotic changes. The compounds are selective Factor XIa inhibitors or dual inhibitors of Factor XIa and plasma kallikrein.
An enantioselective consecutive cyclization/coupling process, catalyzed by palladium is reported. Stereoinduction arises from an enantioselective carbopalladation, generating an intermediate which promotes a nucleopalladation step. The dual cyclization sequence was compatible with a variety of alkyne-tethered oxygen- and nitrogen-centered nucleophiles, and a variety of alkenyl-tethered aryl iodides
4‐Aryl‐2(1H)‐quinolones were efficiently synthesized viacopper‐catalyzedhydroarylation of (o‐aminophenyl)propiolates with arylboronic acid neopentyl glycol esters. The substrate propiolates were prepared from the corresponding silylalkynes with carbon dioxide by Kondo’s carboxylation method using N,N‐dimethylformamide as a solvent. Hydroarylation was performed in the presence of 3 mol% copper(II)
Visible-Light-Induced Radical Carbo-Cyclization/<i>gem</i>-Diborylation through Triplet Energy Transfer between a Gold Catalyst and Aryl Iodides
作者:Lumin Zhang、Xiaojia Si、Frank Rominger、A. Stephen K. Hashmi
DOI:10.1021/jacs.0c03197
日期:2020.6.10
because of their unique structures and reactivity. However, benzo-furan-, indole- and benzothiophene-based benzylic gem-diboronates, building blocks for biologically relevant compounds, are unknown. A promising protocol using visible light and aryl iodides for constructing valuable building blocks, including benzofuran-, indole- and benzothiophene-based benzylic gem-diboronates, via radical carbo-cy
HETEROCYCLIC INHIBITORS OF HISTAMINE RECEPTORS FOR THE TREATMENT OF DISEASE
申请人:Borchardt Allen
公开号:US20110257137A1
公开(公告)日:2011-10-20
The present invention relates to compounds and methods which may be useful as inhibitors of H
1
R and/or H
4
R for the treatment or prevention of inflammatory, autoimmune, allergic, and ocular diseases.