The structures and stereochemistry of cytotoxic sesquiterpene quinones from dactylospongia elegans
作者:Jaime Rodríguez、Emilio Quiñoá、Ricardo Riguera、Barbara M. Peters、Leif M. Abrell、Phillip Crews
DOI:10.1016/s0040-4020(01)80012-0
日期:1992.1
The cytotoxicity of a crude extract from Dactylospongia elegans stimulated a search for the active constituents. The structures and absolute stereochemistry are elucidated for four new 9, 11,18, 19, and thirteen previously described compounds, 3, 4, 6a, 7, 8, 10, 12 - 17, 21. These compounds were isolated from collections of D. elegans obtained from three different Indo-Pacific regions, Fiji, Papua
线虫(Dactylospongia elegans)粗提物的细胞毒性刺激了对活性成分的寻找。的结构和绝对立体化学被阐明为四个新的9,11,18,19,和13先前所描述的化合物,3,4,图6a,7,8,10,12 - 17,21。这些化合物是从斐济,巴布亚新几内亚和泰国三个不同的印度太平洋地区获得的秀丽线虫的集合中分离出来的。与其他海绵或海藻相比,该物种似乎更详细地描述了混合生物发生倍半萜烯-氢醌(-醌)代谢产物。三种化合物,4,9,和13,分别为有效的(IC 50小于1μg/ mL)。醌环对于这种体外活性似乎是必不可少的。