Journal
CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
Volume 26, Issue 2, Pages 190-192Publisher
SCIENCE PRESS
DOI: 10.1007/s00343-008-0190-5
Keywords
red algae; Gymnogongrus flabelliformis Harv.; chemical constituents; MTT assay
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Eight compounds were isolated from red alga Gymnogongrus flabelliformis Harv. In normal phase silica gel, Sephadex LH-20 gel column chromatography, reverse phase HPLC, and recrystallization. Based on MS and 1D NMR spectroscopic data, their structures were determined as: stigmast-4-en-3-one (I), cholest-4-en-3-one (II), cholesterol (III), uracil (IV), uridine (V), adenosine (VI), succinic acid (VII), and 5-hydroxy-4-methyl-5-pentyl-2,5-dihydro-furan-2-on (VIII). All of them were obtained from this species for the first time. Cytotoxicity of these compounds was screened using standard MTT method, but all the compounds were inactive (IC50 > 10 mu g/ml).
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