New glycosphingolipids, named agelasphins (1-8), have been isolated by antitumor and immunostimulatory bioassay-guided purification from an extract of a marine sponge, Agelas mauritianus. Strongly active agents in agelasphins had characteristic ol-galactosylceramide structures, the isolation of which from natural products has not previously been reported. The absolute configurations of agelasphins were elucidated by the total synthesis.
US6281196B1
申请人:——
公开号:US6281196B1
公开(公告)日:2001-08-28
Structural determination of glucosylceramides isolated from marine sponge by fast atom bombardment collision-induced dissociation linked scan at constant B/E
作者:Young Min Ahn、Won-Woong Lee、Jee H. Jung、Sang-gi Lee、Jongki Hong
DOI:10.1002/jms.1678
日期:——
reversed phase high‐performance liquid chromatography from the MeOH extracts of a marine sponge, Haliclona (Reniera) sp., collected from the coast of Ulleung Island, Korea, and analyzed by fastatombombardment mass spectrometry (FAB–MS) in positive‐ion mode. FAB‐mass spectra of these compounds included protonated molecules [M + H]+ and abundant sodiated molecules [M + Na]+ from a mixture of m‐NBA