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

Kenji Monde, Nobuyuki Harada, Mitsuo Takasugi, Peter Kutschy, Mojmı́r Suchý, Milan Dzurilla

Journal of Natural Products · 2000 · 37 citations · 9 references

Concepts

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.

References

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