Cytotoxic peptides from the marine sponge Cymbastela sp.

Tetrahedron
1995.0

Abstract

Extracts of the sponge Cymbastela sp. have yielded the novel cytotoxic peptides geodiamolide G (11), hemiasteriin A (12), hemiasterlin B (13), criamide A (14) and criamide B (15). The structures of the new compounds were solved via spectroscopic analysis and chemical degradation.

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