Antioxidant compounds from Algerian Convolvulus tricolor (Convolvulaceae) seed husks.
NATURAL PRODUCT COMMUNICATIONS(2012)
Abstract
Seed husk extracts of Convolvulus tricolor L. (Convolvulaceae) afforded six compounds, identified for the first time from this plant: isorhamnetin 3-O-beta-D-galactopyranoside (1), isorhamnetin 3-O-beta-D-(6 "-acetyl)-galactopyranoside (2), isorhamnetin 3-O-robinobioside (3), 3,4-di-O-caffeoylquinic acid (4), gentisic acid 5-O-glucoside (5), and scopoletin (6). Separation of compounds was carried out by CC and CPC. Structural elucidations were performed by HPLC-UV-DAD, HPLC-ESI/MS (negative mode) and NMR.
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Key words
Convolvulus tricolor,Isorhamnetin-3-O-glycosides,Caffeoylquinic acid,HPLC-ESI/MS,NMR
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