Ryuhei Ookura, Keijiro Kito, T. Ooi
May 7, 2008
Citations
1
Influential Citations
53
Citations
Journal
The Journal of organic chemistry
Abstract
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.