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(17S)-2[alpha],3[alpha],18[beta],23,24-Pentahydroxy-19(18-->17)- abeo-28-norolean-12-en-21-one from the rhizome of Phlomis umbrosa

UNCG Author/Contributor (non-UNCG co-authors, if there are any, appear on document)
Wei Jia, Professor and Co-Director of the UNCG Center for Research Excellence in Bioactive Food Components (Creator)
Institution
The University of North Carolina at Greensboro (UNCG )
Web Site: http://library.uncg.edu/

Abstract: A new nortriterpenoid, C29H48O6, with a novel skeleton was isolated from the rhizome of Phlomis umbrosa. The compound is composed of a linear array of four fused six-membered rings and a five-membered ring. The central ring has a slightly distorted half-chair conformation, while the other three sixmembered rings adopt chair conformations. There are one intra- and four intermolecular hydrogen bonds, forming an extensive hydrogen-bonding network within the crystal structure.

Additional Information

Publication
Acta Crystallographica Section E, 62, 919-921
Language: English
Date: 2006
Keywords
single-crystal X-ray study, structure report, crystallography, Phlomis Umbrosa