[关键词]
[摘要]
目的 研究采自中国南海的短指软珊瑚Sinularia sp. 的化学成分。方法 利用硅胶柱色谱、Sephadex LH-20凝胶柱色谱等方法进行分离纯化,并根据MS、NMR等波谱数据对化合物的结构进行鉴定。结果 从短指软珊瑚的乙醚提取物中分离得到11个化合物,分别鉴定为胆固醇(1)、3β-羟基胆甾-5-烯-7-酮(2)、3β-羟基麦角甾-5,24(28)-二烯-7-酮(3)、菜油甾醇(4)、24-亚甲基胆固醇(5)、过氧化麦角甾醇(6)、axinysterol(7)、麦角甾醇(8)、(3β,4α,5α,8β)-4-甲基麦角甾-24(28)-烯-3,8-二醇(9)、花生四烯酸(10)、花生四烯酸甲酯(11)。结论 化合物1~9属于3种不同类型的甾醇,而化合物10和11属于不饱和脂类。其中,化合物7和11为首次从该属中分离得到。
[Key word]
[Abstract]
Objective To investigate the chemical constituents of South China Sea soft coral Sinularia sp. Methods Compounds were isolated and purified by column chromatography on silica gel and Sephadex LH-20. Their structures were identified on the basis of mass (MS) and nuclear magnetic resonance (NMR) spectral data. Results Eleven compounds were isolated and identified as cholesterol (1), 3β-hydroxycholest-5-en-7-one (2), 3β-hydroxyergosta-5,24(28)-dien-7-one (3), campesterol (4), 24-methylene-cholesterol (5), ergosterol peroxide (6), axinysterol (7), ergosterol (8), (3β,4α,5α,8β)-4-methylergost-24 (28)-ene-3,8-diol (9), arachidonic acid (10), and methyl arachidonate (11). Conclusion Compounds 1-9 belong to sterols with three different types, while compounds 10 and 11 are unsaturated lipids. Moreover, compounds 7 and 11 are obtained from the soft corals of genus Sinularia sp. for the first time.
[中图分类号]
[基金项目]
国家自然科学基金资助项目(41506187,21672230,81520108028);湖南省自然科学基金资助项目(2015JJ3176);中国博士后科学基金资助项目(2016M601677);中国科学院国家新药研究重点实验室项目(SIMM1501ZZ-03);中国科学院药物创新研究院自主部署科研项目(CASIMM0120152039)