5,6:8,9-diepoxy and other cytotoxic sterols from the marine sponge Homaxinella sp.

Autor: Mansoor TA; College of Pharmacy, Pusan National University, Busan 609-735, Korea., Lee YM, Hong J, Lee CO, Im KS, Jung JH
Jazyk: angličtina
Zdroj: Journal of natural products [J Nat Prod] 2006 Jan; Vol. 69 (1), pp. 131-4.
DOI: 10.1021/np0502950
Abstrakt: Four new (1, 2, 4, and 5) and 14 known (3 and 6-18) polyoxygenated sterols have been isolated from the MeOH extract of the marine sponge Homaxinella sp. by bioactivity-guided fractionation. The planar structures of the sterols were established by 1D and 2D NMR and MS spectroscopic analysis. 5,6:8,9-Diepoxy sterols (1-3) were isolated from a marine organism for the first time. The isolated sterols were tested against a panel of five human solid tumor cell lines and exhibited varying degrees of cytotoxicity.
Databáze: MEDLINE