Motohashi, Keiichiro JBIR-56 and JBIR-57, 2(1H)-pyrazinones from a marine sponge-derived Streptomyces sp. SpD081030SC-03. [electronic resource] - Journal of natural products Jul 2011 - 1630-5 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 1520-6025 Standard No.: 10.1021/np200386c doi Subjects--Topical Terms: AnimalsMarine BiologyMolecular StructureNuclear Magnetic Resonance, BiomolecularOligopeptides--chemistryPorifera--microbiologyPyrazines--chemistryStreptomyces--chemistry