Cytotoxic withanolide constituents of Physalis longifolia.
Cytotoxic withanolide constituents of Physalis longifolia.
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DOI:
10.1021/np200635r
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发表时间:
2011-12-27
影响因子:
5.1
通讯作者:
Timmermann BN
中科院分区:
文献类型:
--
作者:
Zhang H;Samadi AK;Gallagher RJ;Araya JJ;Tong X;Day VW;Cohen MS;Kindscher K;Gollapudi R;Timmermann BN
Fourteen new withanolides 1-14, named withalongolides A-N, respectively, were isolated from the aerial parts of Physalis longifolia together with eight known compounds (15-22). The structures of compounds 1-14 were elucidated through spectroscopic techniques and chemical methods. In addition, the structures of withanolides 1, 2, 3, and 6 were confirmed by X-ray crystallographic analysis. Using a MTS viability assays, eight withanolides (1, 2, 3, 7, 8, 15, 16, and 19) and four acetylated derivatives (1a, 1b, 2a, and 2b) showed potent cytotoxicity against human head and neck squamous cell carcinoma (JMAR and MDA-1986), melanoma (B16F10 and SKMEL-28), and normal fetal fibroblast (MRC-5) cells with IC50 values in the range between 0.067 and 9.3 μM.
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影响因子:
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通讯作者:
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