Synthetic analogs of indole-containing natural products as inhibitors of sortase A and isocitrate lyase
作者:Yeon-Ju Lee、Yu-Ri Han、Wanki Park、Seo-Hee Nam、Ki-Bong Oh、Hyi-Seung Lee
DOI:10.1016/j.bmcl.2010.10.029
日期:2010.12
Guided by the inhibitory activities of indole-containing natural products against isocitratelyase (ICL) from Candida albicans and sortase A (SrtA) from Staphylococcus aureus, a series of compounds structurally analogous to natural products were synthesized. Eight SrtA inhibitors and an ICL inhibitor having higher activities than the natural products were discovered by screening the enzyme inhibitory
The Pictet-Spengler reaction between tryptamine and aldehydes was catalyzed by Dowex 50W-X4 acidic ion-exchange resin. The products were obtained from the resin in high purity by ‘catch and release’ without the need for separate chromatographic purification.
[EN] ACYLTETRAHYDRO-Beta-CARBOLINE COMPOUNDS AS WELL AS DERIVATIVES, APPLICATIONS AND PREPARATION METHODS THEREOF<br/>[FR] COMPOSÉS D'ACYLTÉTRAHYDRO-Beta-CARBOLINE AINSI QUE LEURS DÉRIVÉS, LEURS APPLICATIONS ET LEURS PROCÉDÉS DE PRÉPARATION
Biocatalytic asymmetric formation of tetrahydro-β-carbolines
作者:Peter Bernhardt、Aimee R. Usera、Sarah E. O’Connor
DOI:10.1016/j.tetlet.2010.06.075
日期:2010.8
Strictosidine synthase triggers the formation of strictosidine from tryptamine and secologanin, thereby generating a carbon-catbon bond and a new stereogenic center Strictosidine contains a tetrahydro-beta-carboline moiety an important N-heterocyclic framework found in a range of natural products and synthetic pharmaceuticals Stereoselective methods to produce tetrahydro-B-carboline enantiomers are greatly valued We report that strictosidine synthase from Ophiorrhiza pumila utilizes a range of simple achiral aldehydes and substituted tryptamines to form highly enantioenriched (ee >98%) tetrahydro-beta-carbolines via a Pictet-Spengler reaction This is the first example of aldehyde substrate promiscuity in the strictosidine synthase family of enzymes and represents a first step toward developing a general biocatalytic strategy to access chiral tetrahydro-beta-carbolines (C) 2010 Elsevier Ltd All rights reserved