Two New Cytotoxic Disulfated Holostane Glycosides from the Sea Cucumber<i>Pentacta quadrangularis</i>
作者:Hua Han、Qiang-Zhi Xu、Yang-Hua Yi、Wei Gong、Bing-Hua Jiao
DOI:10.1002/cbdv.200800324
日期:2010.1
Two new disulfated triterpene glycosides, pentactasides B and C (1 and 2, resp.), were isolated from the sea cucumber Pentacta quadrangularis collected from the South China Sea. Their structures were elucidated by extensive spectral analysis (2D-NMR and MS) and chemical methods. The compounds 1 and 2 possess the same tetrasaccharide moieties with two sulfated groups, but are different in the side chains
从南海采集的海参四角蓬中分离出两个新的二硫化三萜糖苷,五倍体糖苷B和C(分别为1和2)。通过广泛的光谱分析(2D-NMR和MS)和化学方法阐明了它们的结构。化合物1和2具有相同的带有两个硫酸基团的四糖部分,但是三萜糖苷配基的侧链不同。五齿asB和C(分别为1和2)对不同的人类肿瘤细胞系表现出明显的细胞毒性(IC(50)0.09-2.30 microM)。