A new dihydroxysterol from the marine phytoplankton Diacronema sp.
نویسندگان
چکیده
Diacronema sp. was cultured and its sterols were separated by column chromatography on silica gel. The new sterol 24-ethyl-4alpha-methyl-cholestane-3,20-diol (1) was characterised by NMR and MS spectrometry, as well as (22E)-24-ethyl-4alpha-methyl-5alpha-cholest-22-en-3beta-ol (2) and beta-sitosterol, the major components of the sterol fractions. Neither the biosynthetic origin of the new dihydroxysterol nor its role in the biochemistry of Diacronema is known.
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عنوان ژورنال:
- Fitoterapia
دوره 76 5 شماره
صفحات -
تاریخ انتشار 2005