Several flavonols have been transformed upon treatment by Trametes versicolor laccase. Most of the major oxidation products have been isolated by HPLC as pure compounds and their structures have been, when possible, investigated through spectral methods (HPLC–MS and NMR). The results are coherent with the predominance of a dismutation process, leading to cation formation, over direct radical–radical
[DE] 4-METHYLCATECHOLDERIVATE UND DEREN VERWENDUNG<br/>[EN] 4-METHYLCATECHOL DERIVATIVES UND USE THEREOF<br/>[FR] DÉRIVÉS DU 4-METHYLCATECHOL ET UTILISATIONS DESDITS DÉRIVÉS
申请人:THANARES GMBH
公开号:WO2013034119A1
公开(公告)日:2013-03-14
Die Erfindung betrifft Phenoxyderivate mit glycosidisch gebundenen Zuckerresten, pharmazeutische Zusammensetzungen mit solchen Verbindungen, Verwendungen von solchen Verbindungen und Zusammensetzungen sowie Verfahren zur Herstellung solcher Verbindungen und pharmazeutischen Zusammensetzungen.
981. Chelate systems. Part II
作者:B. L. Shaw、T. H. Simpson
DOI:10.1039/jr9520005027
日期:——
Flavonol glycosides from Costus spicatus
作者:Bernadete P. da Silva、Robson R. Bernardo、José P. Parente
DOI:10.1016/s0031-9422(99)00441-0
日期:2000.1
Two flavonol diglycosides, tamarixetin 3-O-neohesperidoside, kaempferide 3-O-neohesperidoside and the known quercetin 3-O-neohesperidoside, together with six other known flavonoids were isolated from the leaves of Costus spicatus and their structures were elucidated by a combination of spectroscopic and chemical methods. The flavonol diglycosides were evaluated for inhibitory activity of nitric oxide