1. (-)-delta-N-normethylskytanthine from Tecoma arequipensis.
- Author
-
Harris GH, Fixman EC, Stermitz FR, and Castedo L
- Subjects
- Chemical Phenomena, Chemistry, Gas Chromatography-Mass Spectrometry, Models, Molecular, Peru, Plant Extracts analysis, Stereoisomerism, Trees analysis, X-Ray Diffraction, Alkaloids isolation & purification, Plants, Medicinal analysis
- Abstract
Bark of Tecoma arequipensis yielded the major alkaloidal component (-)-delta-N-normethylskytanthine whose structure was proven by X-ray diffraction analysis of the N-thiourea derivative. The stereochemistry of 1 at all four centers was enantiomeric with that of skytanthine previously reported from Tecoma stans and Skytanthus acutus. Gc-ms of the crude base fraction indicated the presence of several related alkaloids as very minor constituents.
- Published
- 1988
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