Synthesis and antimicrobial activity of 2-alkenylchroman-4-ones, 2-alkenylthiochroman-4-ones and 2-alkenylquinol-4-ones
摘要:
2-Alkenylchroman-4-ones, 2-alkenylthiochroman-4-ones, and 2-alkenylquinol-4-ones were prepared with very good regioselectivity by Me3SiOTf-mediated conjugate addition of alkenylmagnesium bromides and alkenyllithium compounds to chromones thiochromones, and quinol-4-ones. A number of products exhibit a considerable antimicrobial activity. The best activity, with respect to the spectrum of antimicrobial activity, was observed for 2-vinylchroman-4-ones containing an unsubstituted vinyl group and a chloride group located at the chromanone moiety. (C) 2008 Elsevier Ltd. All rights reserved.
[DE] NEUE ANTIMIKROBIELLE CHROMAN-4-ONE<br/>[EN] NOVEL ANTIMICROBIAL CHROMAN-4-ONES<br/>[FR] NOUVELLES CHROMAN-4-ONES ANTIMICROBIENNES
申请人:UNIV ERNST MORITZ ARNDT
公开号:WO2004113317A1
公开(公告)日:2004-12-29
Die Erfindung betrifft unter anderem neue Chroman-4-one der allgemeinen Formel (I) Verfahren zur Herstellung derselben sowie deren Verwendung als antimikrobielle Wirkstoffe.
该发明涉及新的通式(I)的Chroman-4-one,其制备方法以及其作为抗微生物药物的用途。
Synthesis and structure–activity relationships of 2-vinylchroman-4-ones as potent antibiotic agents
作者:Uwe Albrecht、Michael Lalk、Peter Langer
DOI:10.1016/j.bmc.2004.12.031
日期:2005.3.1
A series of novel 2-vinylchroman-4-ones, analogues of the natural products Aposphaerin A and B, were identified as potent antibiotics. Derivatives exhibit a significant activity against multiresistant strains of S. aureus, such as MRSA (methicillin resistant S. aureus). The 2-vinylchroman-4-ones were efficiently prepared by Lewis acid mediated conjugate addition of vinylmagnesium bromide to chromones. (C) 2004 Elsevier Ltd. All rights reserved.
Synthesis and antimicrobial activity of 2-alkenylchroman-4-ones, 2-alkenylthiochroman-4-ones and 2-alkenylquinol-4-ones
2-Alkenylchroman-4-ones, 2-alkenylthiochroman-4-ones, and 2-alkenylquinol-4-ones were prepared with very good regioselectivity by Me3SiOTf-mediated conjugate addition of alkenylmagnesium bromides and alkenyllithium compounds to chromones thiochromones, and quinol-4-ones. A number of products exhibit a considerable antimicrobial activity. The best activity, with respect to the spectrum of antimicrobial activity, was observed for 2-vinylchroman-4-ones containing an unsubstituted vinyl group and a chloride group located at the chromanone moiety. (C) 2008 Elsevier Ltd. All rights reserved.