Indole Alkaloids from Tropical Sponge Hyrtios sp as Isocitrate Lyase Inhibitors

초록

A new beta-carboline alkaloid, 3,4-dihydrohyrtiosulawesine (8), and fifteen known alkaloids were isolated from the tropical marine sponge Hyrtios sp. Among these known compounds, beta-ketoserotonin (10) has been isolated for the first time from a natural source. The structures of the isolated compounds were determined by spectroscopic analyses and comparison with literature values. Compound 8 displayed potent inhibitory activities against isocitrate lyase (IC50: 92.9 mu M) from Candida albicans.

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