New polyhydroxylated sterols stylisterols A–C and a novel 5,19-cyclosterol hatomasterol from the Okinawan marine sponge Stylissa sp.
作者:Hidemichi Mitome、Nao Shirato、Ayako Hoshino、Hiroaki Miyaoka、Yasuji Yamada、Rob W.M. Van Soest
DOI:10.1016/j.steroids.2004.10.003
日期:2005.1
New polyhydroxylated sterols, stylisterol A-C (1-3), and a novel 5,19-cyclosterol, hatomasterol (4) were isolated from the Okinawan sponge Stylissa sp. Structural determinations of these compounds were made by spectroscopic analysis and chemical conversion. Assessment of cytotoxicity toward HeLa cells was also determined.
从冲绳海绵 Stylissa sp. 中分离出新的多羟基甾醇、stylisterol AC (1-3) 和新的 5,19-环甾醇 hatomasterol (4)。这些化合物的结构测定是通过光谱分析和化学转化进行的。还确定了对 HeLa 细胞的细胞毒性评估。