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Structure of a geranyl-alpha-pyrone from Mimulus aurantiacus leaf resin
J Daniel Hare1, Dan B Borchardt
1Department of Entomology, University of California, College of Natural and Agricultural Sciences, Riverside, CA 92521-0314, USA. daniel.hare@ucr.edu
Phytochemistry
|February 7, 2002
Abstract:
A previously reported but misidentified geranyl-alpha-pyrone, in addition to six known compounds, was isolated from the leaf resin of Mimulus aurantiacus. HMBC NMR analyses of the geranyl-alpha-pyrone resolved uncertainties in the site of attachment of the two side chains and necessitated a revision of the previously reported structure. This compound is shown to be 3-geranyl-4-hydroxy-6-(2-hydroxypropyl)-2-pyrone.