A new dihydroxysterol from the marine phytoplankton Diacronema sp
| Autor: | Jaime Bermejo, Jorge Justino, Amélia P. Rauter, Manuela M. Filipe, Maria A.M. Sampayo, João Paulo Noronha, Carla Prata |
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| Rok vydání: | 2004 |
| Předmět: |
Pharmacology
Chromatography Magnetic Resonance Spectroscopy biology Silica gel General Medicine Pharmacognosy biology.organism_classification Mass spectrometry Sterol Mass Spectrometry chemistry.chemical_compound Sterols Column chromatography chemistry Algae Drug Discovery Phytoplankton Botany polycyclic compounds Animals lipids (amino acids peptides and proteins) Diacronema Chrysophyta Phytotherapy |
| Zdroj: | Fitoterapia. 76(5) |
| ISSN: | 0367-326X |
| Popis: | Diacronema sp. was cultured and its sterols were separated by column chromatography on silica gel. The new sterol 24-ethyl-4a-methyl-cholestane-3,20-diol (1) was characterised by NMR and MS spectrometry, as well as (22E)-24-ethyl-4a-methyl-5a-cholest-22-en-3h-ol (2) and h-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. D 2005 Elsevier B.V. All rights reserved. |
| Databáze: | OpenAIRE |
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