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Planta Med 1986; 52(2): 89-95
DOI: 10.1055/s-2007-969088
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© Georg Thieme Verlag Stuttgart · New York

GC/MS-Analyse methylierter Iridoidglykoside1

GC/MS-Analysis of Methylated Iridoid Glycosides1 Adrian Franke, Horst Rimpler
  • Institut für Pharmazeutische Biologie der Universität, Schänzlestr. 1, D-7800 Freiburg
1 Herrn Professor Dr. Dr. hc. mult. E. Stahl mit den besten Wünschen zum 60. Geburtstag gewidmet
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Publication History

1985

Publication Date:
26 February 2007 (online)

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Abstract

A procedure for analyzing permethylated iridoid glycosides by GLC/MS is described. Four different plant extracts containing various types of iridoid structures have been separated by column chromatography. These purified fractions as well as a total of 13 authentic iridoids have been methylated and analyzed by gas-liquid chromatography/mass spectrometry. The extraction of 10 g dried plant material gave sufficient yields to identify known iridoids by the mass-and infrared-spectra of their methylated derivatives. The methylation of carbonyl group containing glycosides resulted in O- and C-methylation and some other reactions. The structure of the methylated products of various representative iridoids has been determined by mass-and 1H-nmr-spectroscopy.