Acylated flavone C-glycosides from Hemistepta lyrata.
Two new acylated flavone C-glycosides, 6''-O-(2'''-methylbutyryl)isoswertisin (1) and 6''-O-(2'''-methylbutyryl)isoswertiajaponin (2), together with four known acylated flavone C-glycosides, were isolated for the first time from the whole plants of Hemistepta lyrata (Compositae). Their structures were elucidated on the basis of chemical and spectroscopic methods including HR-ESI-MS, ESI-MS, UV, IR, and 1D and 2D NMR spectral techniques.
Dong
Fang-Yan
FY
Institute of Phytochemistry, Jilin Academy of Chinese Medicine Sciences, Changchun, China.
Guan
Li-Na
LN
Zhang
Ying-Hua
YH
Cui
Zheng-Hua
ZH
Wang
Li
L
Wang
Wei
W
D019659:Asteraceae / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D047309:Flavones / Q000737:chemistry / Q000302:isolation & purification*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular
C552783:6''-O-(2'''-methylbutyryl)isoswertiajaponin; C552784:6''-O-(2'''-methylbutyryl)isoswertisin; D004365:Drugs, Chinese Herbal; D047309:Flavones; D006027:Glycosides