Steroids from the soft coral Sinularia crassa.

Steroids from the soft coral Sinularia crassa.
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DOI:
10.3390/md10020439
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发表时间:
2012-02
期刊:
影响因子:
5.4
通讯作者:
Sheu JH
Sheu JH
中科院分区:
医学2区
文献类型:
--
作者:
Chao CH;Chou KJ;Huang CY;Wen ZH;Hsu CH;Wu YC;Dai CF;Sheu JH

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从台湾软珊瑚Sinularia crassa中分离得到一个新甾醇,名为crassarosterol A(1),四个新甾体苷,名为crassarosterosides A-D(2-5)。用Mosher方法确定了1的绝对构型。2-5的糖部分的绝对构型通过对衍生自酸水解后释放的糖的邻甲苯基硫代氨基甲酸酯的HPLC分析来确定。化合物2和4在10 µM时可显著抑制促炎iNOS蛋白的表达。相反,发现1-3在该浓度下刺激考克斯-2蛋白的表达。类固醇1和4也显示出对所选择的人肝癌细胞的细胞毒性。
One new sterol, crassarosterol A (1), and four new steroidal glycosides, crassarosterosides A–D (2–5) were isolated from the Formosan soft coral Sinularia crassa. The absolute configuration of 1 was determined using the Mosher’s method. The absolute configurations for the sugar moieties of 2–5 were determined by HPLC analysis on the o-tolylthiocarbamates derived from the liberated sugar after acid hydrolysis. Compounds 2 and 4 could significantly inhibit the expression of pro-inflammatory iNOS protein at 10 µM. In contrast, 1–3 were found to stimulate the expression of COX-2 protein at this concentration. Steroids 1 and 4 also showed cytotoxicity toward the selected human liver cancer cells.
DOI: 10.1021/np040112u
发表时间: 2004-12-01
影响因子: 5.1
作者:
Ahmed, AF;Su, JH;Sheu, JH
通讯作者: Sheu, JH
DOI: 10.1016/j.steroids.2004.04.001
发表时间: 2004-07-01
期刊: STEROIDS
影响因子: 2.7
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影响因子: 5.1
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发表时间: 2009-10-01
影响因子: 7.3
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DOI: 10.1021/np020280r
发表时间: 2002-12-01
影响因子: 5.1
作者:
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