期刊
JOURNAL OF NATURAL PRODUCTS
卷 69, 期 12, 页码 1676-1679出版社
AMER CHEMICAL SOC
DOI: 10.1021/np060132r
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Biological and chemical investigations of the methanolic crude extract of the Red Sea marine sponge Hyrtios erectus led to the isolation of a novel azepino-indole-type alkaloid named hyrtiazepine (2) and 5-hydroxy-1H-indole-3-carboxylic acid methyl ester (3), together with the known metabolites hyrtiosulawesine (1), 5-hydroxyindole-3-carbaldehyde (4), hyrtiosin A (5), and hyrtiosin B (6). Their structures were elucidated on the basis of mass spectrometry and detailed 2D NMR spectroscopic data. Hyrtiosulawesine (1) displayed a significant antiphospholipase A(2) activity with an IC50 value of 14 mu M in a fluorometric assay using Crotalus adamanteus venom phospholipase A(2).
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