An efficient microwave-assisted enzyme-catalyzed regioselective synthesis of long chain acylated derivatives of flavonoid glycosides
作者:Ziaullah、H.P. Vasantha Rupasinghe
DOI:10.1016/j.tetlet.2013.01.103
日期:2013.4
This work describes a method of microwave-assisted regioselective enzymatic acylation, using Novozyme 435 (R), of quercetin-3-O-glucoside (isoquercitrin) and phloretin-2'-glucoside (phloridzin) with different long chain saturated, mono-, and poly-unsaturated fatty acids. The synthesized esters were analyzed by H-1 NMR, and C-13 NMR spectroscopy. In this investigation, microwave irradiation under solvent free condition has been found to be more efficient and economical than conventional conditions both, in terms of time and energy. (c) 2013 Elsevier Ltd. All rights reserved.
[EN] ACYLATED DERIVATIVES OF PHLORIDZIN AND ISOQUERCETRIN AS ANTICANCER THERAPEUTICS AND METHODS OF USE THEREOF<br/>[FR] DÉRIVÉS ACYLÉS DE PHLORIDZINE ET D'ISOQUERCÉTRINE EN TANT QU'AGENTS THÉRAPEUTIQUES ANTICANCÉREUX ET LEURS PROCÉDÉS D'UTILISATION
申请人:UNIV DALHOUSIE
公开号:WO2015019193A3
公开(公告)日:2015-06-25
Sonochemical enzyme-catalyzed regioselective acylation of flavonoid glycosides
作者:Ziaullah、H.P. Vasantha Rupasinghe
DOI:10.1016/j.bioorg.2016.01.005
日期:2016.4
This work compares a highly efficient and alternative method of sonication-assisted lipase catalyzed acylation of quercetin-3-O-glucoside and phloretin-2′-glucoside, using Candida antarctica lipase B (Novozyme 435®), with a range of fatty acids. In this study, sonication-assisted irradiation coupled with stirring has been found to be more efficient and economical than conventional reaction conditions