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Flavone C-glycosides from Dendrobium gratiosissimum
被引:0
|作者:
Song, Zhijun
[1
]
Liu, Jimei
[1
]
Li, Changkang
[1
]
Sun, Xincheng
[1
]
Chen, Dawei
[1
]
Chen, Ridao
[1
]
Xie, Kebo
[1
]
Han, Yaotian
[1
]
Dai, Jungui
[1
]
机构:
[1] Chinese Acad Med Sci & Peking Union Med Coll, State Key Lab Bioact Subst & Funct Nat Med, CAMS Key Lab Enzyme & Biocatalysis Nat Drug, Beijing 100050, Peoples R China
关键词:
Dendrobium gratiosissimum;
Orchidaceae;
Flavone C -glycosides;
Cytotoxicity;
D O I:
10.1016/j.phytol.2023.03.003
中图分类号:
Q94 [植物学];
学科分类号:
071001 ;
摘要:
A phytochemical investigation of Dendrobium gratiosissimum Rchb. f. (Orchidaceae) led to the isolation of four new flavone C-glycosides (1-4) together with four known ones (5-8). The chemical structures of the new flavone C-glycosides (1-4) were elucidated by extensive spectroscopic data analysis including 1D- and 2D NMR, HR-ESI-MS, ESI-MS2 and careful comparison of the sugar unit spectroscopic data with those of reported in the literature. Biological assay revealed that compounds 6 and 7 showed moderate cytotoxicity against the human tumor cell line HepG2 by suppressing cell viability with an inhibition rate of 76.7 % and 79.6 % at 10.0 mu M, respectively.
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页码:158 / 162
页数:5
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