Secondary metabolite chemistry of the Australian brown alga Encyothalia cliftonii: Evidence for herbivore chemical defence
作者:Vassilios Roussis、Rachel L. King、William Fenical
DOI:10.1016/s0031-9422(00)90790-8
日期:1993.8
Two bis-prenylated phenols have been isolated from the Western Australian brown alga Encyothalia cliftonii Harvey. The structures of these compounds were determined by spectral and chemical methods. The major metabolite, 2,4-bis(3-methylbut-2-enyl)phenol, previously isolated as a minor metabolite from the related alga Perithalia caudata, showed significant feeding deterrence toward the herbivorous sea urchin Tripneustes esculentus (Leske). The minor metabolite is a new compound in which hydration of one of the isopentenyl olefinic bonds has taken place.