A novel polyhydroxyl sterol from Asterina pectinifera.
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.
Zhang
Li-Xin
LX
Institute of Oceanology, The Chinese Academy of Sciences, Qingdao, China.
Fan
Xiao
X
Shi
Jian-Gong
JG
D000818:Animals; D047288:Asterina / Q000737:chemistry*; D019906:Nuclear Magnetic Resonance, Biomolecular; D013261:Sterols / Q000737:chemistry / Q000302:isolation & purification*
D013261:Sterols