Chemical investigation of an Okinawan marine soft coral resulted in the isolation of one new compound (1) and five known cholic acid type keto-steroids 2–6 possessing enone or dienone A-rings and desmosterol (7). The structures of all compounds were elucidated from spectral data, mainly by 1D and 2D NMR techniques, mass spectra, comparison of NMR data with those of reported compounds, and by chemical transformations. Compounds 1–7 showed potent cytotoxic activity.
通过对冲绳海洋软珊瑚进行
化学研究,分离出一种新化合物(1)和五种已知的
胆酸类
酮类固醇(2-6),它们具有烯酮或二烯酮A环和去甲
胆甾醇(7)。通过光谱数据,主要采用一维和二维核磁共振技术、质谱、核磁共振数据与已报道化合物数据的比较以及
化学转化,阐明了所有化合物的结构。化合物1-7显示出强大的细胞毒性活性。