Venustatriol, a new tetracyclic ether derived from squalene, which has anti-viral activity, has been isolated from the red alga Laurencia venusta. Its structure and absolute configuration were determined by X-ray using the absolute structure parameter x. By comparison of their spectral properties, the absolute configuration of its congener, thyrsiferol, was deduced.
The final published version of this manuscript is available at http://www.sciencedirect.com/science/journal/00404039 and may be cited as: Sakemi, S., Higa, T., Jefford, C. W., & Bernardinelli, G. (1986). Venustratriol. A new, anti-viral, triterpene tetracyclic ether from Laurencia Venusta . Tetrahedron Letters, 27(36), 4287-4290. doi:10.1016/S0040-4039(00)94254-0
Florida Atlantic University. Harbor Branch Oceanographic Institute contribution #573.