ACYLOXY- AND PHOSPHORYLOXY-BUTADIENE-FE(CO)3 COMPLEXES AS ENZYME-TRIGGERED CO-RELEASING MOLECULES
申请人:Schmalz Hans-Guenther
公开号:US20120202774A1
公开(公告)日:2012-08-09
The present invention provides acyloxy- and phosphoryloxy-butadiene-Fe(CO)
3
complexes which can deliver carbon monoxide to a physiological target, wherein release of carbon monoxide can be enzymatically-triggered. The present invention also provides for methods of manufacturing the enzymatically-triggered carbon monoxide releasing molecules and methods for their use.
Antagonism of a zinc metalloprotease using a unique metal-chelating scaffold: tropolones as inhibitors of P. aeruginosa elastase
作者:Jessica L. Fullagar、Amanda L. Garner、Anjali K. Struss、Joshua A. Day、David P. Martin、Jing Yu、Xiaoqing Cai、Kim D. Janda、Seth M. Cohen
DOI:10.1039/c3cc41191e
日期:——
Tropolone emerged from the screening of a chelator fragment library (CFL) as an inhibitor of the Zn2+-dependent virulence factor, Pseudomonas aeruginosa elastase (LasB). Based on this initial hit, a series of substituted tropolone-based LasB inhibitors was prepared, and a compound displaying potent activity in vitro and in a bacterial swarming assay was identified. Importantly, this inhibitor was found to be specific for LasB over other metalloenzymes, validating the usage of tropolone as a viable scaffold for identifying first-in-class LasB inhibitors.
Lewis Acid Catalyzed Inverse-Electron-Demand Diels−Alder Reaction of Tropones
作者:Pingfan Li、Hisashi Yamamoto
DOI:10.1021/ja908127f
日期:2009.11.25
Lewisacidcatalyzed inverse-electron-demand Diels-Alderreaction of tropone derivatives was developed. Up to 97% ee was obtained for the chiral dinucleus BINOL-aluminum complex catalyzedreaction between tropones and ketene diethyl acetal to give bicyclo[3.2.2] ring structures, which opens up a unique way of making chiral seven-membered rings.
Asymmetric Synthesis of Bicyclo[4.3.1]decadienes and Bicyclo[3.3.2]decadienes via [6 + 3] Trimethylenemethane Cycloaddition with Tropones
作者:Barry M. Trost、Patrick J. McDougall、Olaf Hartmann、Peter T. Wathen
DOI:10.1021/ja806979b
日期:2008.11.12
trimethylenemethane donor undergoes palladium-catalyzed [6 + 3] cycloaddition with a variety of tropones to yield bicyclo[4.3.1]decadienes in excellent regio-, diastereo-, and enantioselectivity. Products of the Pd-TMM [6 + 3] cycloaddition participate in a thermal [3,3] sigmatropic rearrangement to yield bicyclo[3.3.2]decadienes in good yield.
Medium-sized rings, including those embedded in bridged and fused bicyclicscaffolds, are common core structures of myriad bioactive molecules. Among various synthetic strategies towards their synthesis, intermolecular higher-order cycloaddition provides great potential to build complex medium-sized rings from simple buildingblocks. Unfortunately, such transformations are often plagued with competitive