Sesterterpenoids from the marine sponge Hyrtios erectus.
Four new sesterterpenes, namely, (+)-20-formylhyrtiosal (1), (+)-16-O-acetyl-20-formylhyrtiosal (2), 12-alpha-O-acetylhyrtiolide (3), and 5,10-dihydroxyfurospinulosine-1 (4), together with seven known sesterterpenes (5-11) were isolated from the marine sponge Hyrtios erectus collected at Hainan, China. The structures were elucidated on the basis of extensive spectroscopic analysis involving mainly one- and two-dimensional NMR as well as mass spectroscopy.
Qiu
Yan
Y
State Key Laboratory of Natural and Biomimetic Drugs, Peking University, 100083, Beijing, People's Republic of China.
Deng
Zhiwei
Z
Pei
Yuehu
Y
Fu
Hongzheng
H
Li
Jun
J
Proksch
Peter
P
Lin
Wenhan
W
D000818:Animals; D002681:China; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D011161:Porifera / Q000737:chemistry*; D054830:Sesterterpenes; D013237:Stereoisomerism; D013729:Terpenes / Q000737:chemistry / Q000302:isolation & purification*
D054830:Sesterterpenes; D013729:Terpenes