Acylated flavone C-glycosides from Trollius ledebouri |
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| Authors: | Zou Jian-Hua Yang JunShan Zhou Liang |
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| Affiliation: | Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100094, People's Republic of China. |
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| Abstract: | Six new acylated flavone C-glycosides, 2'-O-(2'-methylbutyryl)isoswertisin (1), 3'-O-(2'"-methylbutyryl)isoswertisin (2), 2'-O-(2'"-methylbutyryl)vitexin (3), 2'-O-(2'"-methylbutyryl)orientin (4), 2'-O-(3'",4'"-dimethoxybenzoyl)vitexin (5), and 2'-O-(3'",4'"-dimethoxybenzoyl)orientin (6), and the known flavone C-glycoside, isoswertisin, were isolated from the flowers of Trollius ledebouri. The structures of 1-6 were elucidated by spectroscopic methods. |
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