Organocatalytic Route to Dihydrocoumarins and Dihydroquinolinones in All Stereochemical Configurations
摘要:
A straightforward stereodivergent route to dihydrocoumarins and dihydroquinolinones based on cinchona alkaloid catalyzed addition reactions of monothiomalonates (MTMs) to functionalized nitroolefins followed by deprotection and chemoselective cyclization has been developed. The synthesis proceeds under mild conditions and yields heterocycles with adjacent quaternary and tertiary stereogenic centers in very high yields and stereoselectivities. Moreover, full control over the relative and absolute configuration is achieved by the use of (pseudo)enantiomeric catalysts and the difference in reactivity of thioester versus oxoester moieties.
[EN] NOVEL CHROMEN-2-ONE BASED HYDROXAMIC ACID DERIVATIVES HAVING ANTI-INFLAMMATORY ACTIVITY, THE PREPARATION THEREOF AND A COMPOSITION CONTAINING THE SAME FOR TREATING INFLAMMATORY DISEASE<br/>[FR] NOUVEAUX DERIVES D'ACIDE HYDROXAMIQUE A BASE DE CHROMENE-2-ONE QUI PRESENTENT UNE ACTIVITE ANTI-INFLAMMATOIRE, PREPARATION DE CEUX-CI ET COMPOSITION CONTENANT CEUX-CI, UTILISEE POUR TRAITER DES MALADIES INFLAMMATOIRES
申请人:JEIL PHARMACEUTICAL CO LTD
公开号:WO2007008037A1
公开(公告)日:2007-01-18
[EN] The present invention relates to novel chromen-2-one based hydroxamic acid derivatives having anti-inflammatory activity, the preparation thereof and a composition containing the same for treating inflammatory disease. [FR] La présente invention concerne de nouveaux dérivés d'acide hydroxamique à base de chromène-2-one qui présentent une activité anti-inflammatoire, ainsi que la préparation de ceux-ci et une composition contenant ceux-ci, utilisée pour traiter des maladies inflammatoires.
Organocatalytic Route to Dihydrocoumarins and Dihydroquinolinones in All Stereochemical Configurations
作者:Oliver D. Engl、Sven P. Fritz、Alexander Käslin、Helma Wennemers
DOI:10.1021/ol502697s
日期:2014.10.17
A straightforward stereodivergent route to dihydrocoumarins and dihydroquinolinones based on cinchona alkaloid catalyzed addition reactions of monothiomalonates (MTMs) to functionalized nitroolefins followed by deprotection and chemoselective cyclization has been developed. The synthesis proceeds under mild conditions and yields heterocycles with adjacent quaternary and tertiary stereogenic centers in very high yields and stereoselectivities. Moreover, full control over the relative and absolute configuration is achieved by the use of (pseudo)enantiomeric catalysts and the difference in reactivity of thioester versus oxoester moieties.
Structure based optimization of chromen-based TNF-α converting enzyme (TACE) inhibitors on S1′ pocket and their quantitative structure–activity relationship (QSAR) study
作者:Jee Sun Yang、Kwangwoo Chun、Jung Eun Park、Misun Cho、Jeongjea Seo、Doona Song、Hongchul Yoon、Chun-Ho Park、Bo-Young Joe、Jong-Hee Choi、Myung-Hwa Kim、Gyoonhee Han
DOI:10.1016/j.bmc.2010.10.006
日期:2010.12
structure–activity relationship (QSAR) study using genetic function approximation technique (GFA) and docking study were performed to confirm the series of coumarin core TACE inhibitors. QSAR model have been evaluated internally and externally using test set prediction. Through docking study of each molecule, it is validated that the electrostatic descriptors from the QSAR equation could explain the importance