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Structure determination and detailed 1H, 13C NMR assignments of triterpenes from Mimusops elengi

✍ Scribed by N. P. Sahu; Kazuo Koike; Zhonghua Jia; N. B. Mondal; B. Achari; Tamotsu Nikaido

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 116 KB
Volume: 37
Category: Article
ISSN: 0749-1581
DOI: 10.1002/(sici)1097-458x(199902)37:2<152::aid-mrc410>3.0.co;2-a

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✦ Synopsis

The seeds of Mimusops elengi yielded a new triterpene, mimusic acid, whose structure was elucidated as 2b,3b,16a,23-tetrahydroxyoleana-5,13(18)-dien-28-oic acid by NMR spectral studies. The detailed 1H and 13C NMR resonance assignments of this compound and of the previously reported congener mimusopic acid were achieved by using the 2D NMR techniques, HETCOR, COSY, NOESY and HMBC.

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