Cinanthrenol A, an Estrogenic Steroid Containing Phenanthrene Nucleus, from a Marine Sponge Cinachyrella sp.
文摘
Cinanthrenol A (1), a new steroid composed of a phenanthrene and a spiro[2,4]heptane system, was isolated from the marine sponge Cinachyrella sp. It is the first phenathrene-containing steroid with estrogen activity.