Four new alkaloids, (-)-8'-oxo-agelasine D (2), ageloxime B (3), (+)-2-oxo-agelasidine C (4), and 4-bromo-N-(butoxymethyl)-1H-pyrrole-2-carboxamide (5), and the known compound (-)-ageloxime D (1) were isolated from the marine sponge Agelas mauritiana. Their chemical structures were established on the basis of spectroscopic analysis. Compounds 1 and 3 both showed antifungal activity against Cryptococcus neoformans and antileishmanial activity against Leishmania donovani in vitro. Compound 3 also exhibited antibacterial activity against Staphylococcus aureus and methicillin-resistant S. aureusin vitro.
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Yang et al. (2012) studied this question.
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