![Biosynthesis of three cyclopropene-containing sterols in the sponge Calyx niceaensis]()
Biosynthesis of three cyclopropene-containing sterols in the sponge Calyx niceaensisMargot, Christian; Catalan, Cesar A. N.; Proudfoot, John R.; Sodano, Guido; Sica, Donato; Djerassi, Carl · Journal of the Chemical Society, Chemical Communications · 1987