Chemical and Pharmaceutical Bulletin 2000-Aug
Two new acylated flavonol glycosides from Vicia amurensis.
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요약
Two new acylated flavonol glycosides, named amurenosides A and B, together with quercetin 3-(2,6-di-O-alpha-rhamnopyranosyl-beta-galactopyranoside), have been isolated from the whole plant of Vicia amurensis. Their structures were elucidated as quercetin 3-O-alpha-L-(3-feruloylrhamnopyranosyl)(1-->6)-[alpha-L-rhamnopyra nosyl(1-->2)]-beta-D-galactopyranoside and quercetin 3-O-alpha-L-(2-feruloylrhamnopyranosyl)(1-->6)-[alpha-L-rhamnopyra nosyl(1-->2)]-beta-D-galactopyranoside on the basis of various NMR techniques, FAB mass spectrometry and chemical reactions.