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Nor-lignans and steroidal saponins from Asparagus gobicus
被引:27
|作者:
Yang, CX
[1
]
Huang, SS
[1
]
Yang, XP
[1
]
Jia, ZJ
[1
]
机构:
[1] Lanzhou Univ, Coll Chem & Chem Engn, Natl Lab Appl Organ Chem, Lanzhou 730000, Gansu, Peoples R China
关键词:
Asparagus gobicus;
Asparagaceae;
nor-lignans;
steroidal saponins;
cytotoxic activity;
D O I:
10.1055/s-2004-818974
中图分类号:
Q94 [植物学];
学科分类号:
071001 ;
摘要:
From the roots of Asparagus gobicus, four new nor-lignans, 3-methoxynyasin, iso-agatharesinol, gobicusins A, B and one new steroidal saponin, 3-O-[beta-D-xylopyranosyl(1-4)-beta-D-glicopyranosyl(1 -2)-beta-D-glucopyranosyl]-(25S)-5beta-spirostan-3beta-ol (11) were isolated, together with twelve known compounds. The structures of the new compounds were established by spectroscopic methods including 2D-NMR techniques (H-1-H-1 COSY, HMBC, HMQC) and chemical transformations. Nyasol (5) and 11 exhibited remarkable in vitro cytotoxic activity against cultured HO-8910 (human ovarian carcinoma) and Bel-7402 (human hepatoma) cells With IC50 vales of 30.6 and 29.4 muM, 5.2 and 5.2 muM, respectively.
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页码:446 / 451
页数:6
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