The structural determination of a new steroidal metabolite from the brown alga Sargassum asperifolium.
An investigation of the natural products chemistry of the brown alga Sargassum asperifolium from the red sea yielded a new steroidal metabolite, 24-vinyl cholest-4-ene-24-ol-3-one, saringosterone (3), a known steroidal metabolite, 24-vinyl cholest-5-ene-3b,24-diol, saringosterol (4), and known diterpene with a hydroazulene skeleton, dictyone (1). The identification of the isolated metabolites was established mainly by spectral methods and chemical transformation of the dictyone (1) to its acetate (2).
Ayyad
Seif-Eldin N
SE
Department of Chemistry, Dammietta Faculty of Science, Mansoura University, New Dammietta P. O. 34517, Egypt. snayyad@mans.edu.eg
Sowellim
Salah Z A
SZ
el-Hosini
Mohamed S
MS
Abo-Atia
Amal
A
D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification; D000459:Phaeophyceae / Q000737:chemistry* / Q000378:metabolism; D013256:Steroids / Q000737:chemistry* / Q000302:isolation & purification; D013265:Stigmasterol / Q000031:analogs & derivatives* / Q000737:chemistry* / Q000302:isolation & purification
D004224:Diterpenes; D013256:Steroids; C442582:saringosterol; C478022:saringosterone; D013265:Stigmasterol