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
Timmermann BN
中科院分区:
生物学2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

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从酸浆的地上部分与八种已知化合物 (15-22) 一起分离出 14 个新的茄内酯 1-14,分别命名为 withalongolides A-N。通过光谱技术和化学方法阐明了化合物1-14的结构。此外,睡茄内酯1、2、3和6的结构通过X射线晶体分析得到证实。使用 MTS 活力测定,八种茄内酯(1、2、3、7、8、15、16 和 19)和四种乙酰化衍生物(1a、1b、2a 和 2b)对人头颈鳞状细胞癌(JMAR 和 MDA-1986)、黑色素瘤(B16F10 和 SKMEL-28)和正常细胞显示出有效的细胞毒性。胎儿成纤维细胞 (MRC-5) 细胞的 IC50 值在 0.067 至 9.3 μM 之间。
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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