Enantiomeric Excess of a Cruciferous Phytoalexin, Spirobrassinin, and Its Enantiomeric Enrichment in an Achiral HPLC System

descriptionPublicationkeyboard_double_arrow_right Article 26 Jul 2000 English Publisher:American Chemical Society (ACS)Journal:Journal of Natural Products, volume 63, pages 1,312-1,314 (issn: 0163-3864, eissn: 1520-6025,

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Authors: K, Monde; N, Harada; M, Takasugi; P, Kutschy; M, Suchy; M, Dzurilla;

doi: 10.1021/np000043t

pmid: 11000049

Enantiomeric Excess of a Cruciferous Phytoalexin, Spirobrassinin, and Its Enantiomeric Enrichment in an Achiral HPLC System

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Abstract

Enantiomeric purity of a cruciferous phytoalexin, spirobrassinin (1), was determined by chiral HPLC analysis. The enantiomeric excesses of two natural spirobrassinin fractions separated by nonchiral chromatography were considerably different. A significant enantiomeric enrichment was observed during the nonchiral chromatographic separation of an artificial enantiomeric mixture of 1.

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Keywords

Thiazoles, Plant Extracts, Terpenes, Phytoalexins, Spectrum Analysis, Spiro Compounds, Stereoisomerism, Brassica, Sesquiterpenes, Chromatography, High Pressure Liquid

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