Synthesis of Quercetin Glycosides and Their α-Glucosidase Inhibitory Activities
摘要:
A series of quercetin glycosides as the analogues of 3,5,5'-trimethy1-7-O-beta-D-glucopyranosylquercetin (8) were synthesized, their structures were confirmed by H-1 NMR, C-13 NMR and MS. The inhibitory activities of those compounds against alpha-glucosidase were evaluated in vitro, in particular, the compounds V-c and V-d-2 showed promising bioactivities with IC50 of 19.4 mol.L-1 and 19.7 mu mol.L-1, are much higher than 8 (IC50 > 100 mu mol.L-1). This research will provide a reference in the study of the synthetic methods and hypoglycemic activity for the quercetin glycosides.
Synthesis of Quercetin Glycosides and Their α-Glucosidase Inhibitory Activities
摘要:
A series of quercetin glycosides as the analogues of 3,5,5'-trimethy1-7-O-beta-D-glucopyranosylquercetin (8) were synthesized, their structures were confirmed by H-1 NMR, C-13 NMR and MS. The inhibitory activities of those compounds against alpha-glucosidase were evaluated in vitro, in particular, the compounds V-c and V-d-2 showed promising bioactivities with IC50 of 19.4 mol.L-1 and 19.7 mu mol.L-1, are much higher than 8 (IC50 > 100 mu mol.L-1). This research will provide a reference in the study of the synthetic methods and hypoglycemic activity for the quercetin glycosides.
[EN] FLAVONE GLYCOSIDE DERIVATIVES AND PREPARATION METHOD AND USE THEREOF<br/>[FR] DÉRIVÉS DE FLAVONE GLYCOSIDE, ET PROCÉDÉ DE PRÉPARATION ET UTILISATION DE CEUX-CI<br/>[ZH] 一类黄酮糖苷衍生物及其制备方法和用途
A series of quercetin glycosides as the analogues of 3,5,5'-trimethy1-7-O-beta-D-glucopyranosylquercetin (8) were synthesized, their structures were confirmed by H-1 NMR, C-13 NMR and MS. The inhibitory activities of those compounds against alpha-glucosidase were evaluated in vitro, in particular, the compounds V-c and V-d-2 showed promising bioactivities with IC50 of 19.4 mol.L-1 and 19.7 mu mol.L-1, are much higher than 8 (IC50 > 100 mu mol.L-1). This research will provide a reference in the study of the synthetic methods and hypoglycemic activity for the quercetin glycosides.