title: Minor and trace sterols in marine invertebrates. 62. Novel coprostanols with unusual side chains from the marine sponge Calyx nicaeensis.
abstract: Seventeen stanols with a variety of unusual side chains and possessing the rare 5 beta-dihydro nucleus have been isolated from the sponge Calyx nicaeensis. These stanols probably result from bacterial metabolism of the endogenous sponge sterols.
authors.affiliation: Dept. of Chemistry, Stanford University, CA 94305.
authors.forename: T B
authors.initials: TB
authors.lastname: Ha
authors.forename: C
authors.initials: C
authors.lastname: Djerassi
mesh_terms: D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D004083:Cholestanol / Q000302:isolation & purification; D002851:Chromatography, High Pressure Liquid; D009682:Magnetic Resonance Spectroscopy; D011161:Porifera / Q000032:analysis; D013237:Stereoisomerism; D013261:Sterols / Q000302:isolation & purification*
chemical_list: D013261:Sterols; D004083:Cholestanol