title: A novel polyhydroxyl sterol from Asterina pectinifera.
abstract: A novel polyhydroxyl sterol (1) along with one known polyhydroxyl sterol (2), and two known monoglycosides, asterosaponin P1 (3) and its desulfated monoglycoside (4), have been isolated from the whole bodies of a common Pacific starfish Asterina pectinifera. The structure of the new polyhydroxyl sterol was determined as 15beta,16beta-isopropylidenedioxy-5alpha-cholestane-3beta,4beta,6alpha,7alpha,8,26-hexaol by spectroscopic methods, including FABMS, HR-FABMS, 1D and 2D NMR techniques.
authors.affiliation: Institute of Oceanology, The Chinese Academy of Sciences, Qingdao, China.
authors.forename: Li-Xin
authors.initials: LX
authors.lastname: Zhang
authors.forename: Xiao
authors.initials: X
authors.lastname: Fan
authors.forename: Jian-Gong
authors.initials: JG
authors.lastname: Shi
mesh_terms: D000818:Animals; D047288:Asterina / Q000737:chemistry*; D019906:Nuclear Magnetic Resonance, Biomolecular; D013261:Sterols / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D013261:Sterols