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Structure revision of circumdatins A and B, benzodiazepine alkaloids produced by marine fungus Aspergillus ostianus, by X-ray crystallography. | LitMetric
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Structure revision of circumdatins A and B, benzodiazepine alkaloids produced by marine fungus Aspergillus ostianus, by X-ray crystallography.

Ryuhei Ookura Keijiro Kito Takashi Ooi Michio Namikoshi Takenori Kusumi

J Org Chem

Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8505, Japan and Tohoku Pharmaceutical University, Aoba-ku, Sendai, Japan

Published: June 2008

The structures of circumdatins A and B, pentacyclic alkaloids produced by Aspergillus ostianus, were revised from the previously reported betaine structures to unique oxepin ones by X-ray crystallography. The co-occurring known alkaloids, circumdatins D, E, and H, and a new compound reported here, circumdatin J, have a common framework.

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http://dx.doi.org/10.1021/jo800348dDOI Listing

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