Confirmation of New, High-mass Saponins from Gleditsia japonica by Field Desorption Mass Spectrometry*

H.-R. Schulten; T. Komori; T. Kawasaki; T. Okuyama; S. Shibata

doi:10.1055/s-2007-970023

Planta Medica, Table of Contents

Planta Med 1982; 46(10): 67-73
DOI: 10.1055/s-2007-970023

Research Articles

Confirmation of New, High-mass Saponins from Gleditsia japonica by Field Desorption Mass Spectrometry*

H.-R. Schulten¹ , T. Komori² , T. Kawasaki² , T. Okuyama³ , S. Shibata³

¹Institute of Physical Chemistry, University of Bonn, Bonn, Federal Republic of Germany
²Faculty of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
³Department of Pharmacognosy and Phytochemistry, Meiji College of Pharmacy, Tokyo, Japan

* Field Desorption Mass Spectrometry of Natural Products-X, for part IX see reference [11].

Abstract

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Abstract

The molecular weights and complete sugar sequences have been determined in saponins carrying 3 to 8 free sugars. The results are in agreement with parallel chemical and instrumental analyses of the triterpenoid saponins derived from Gleditsia japonica. The capacity and limitations of field desorption mass spectrometry in structural elucidation of substituted oligoglycosides are described.

Key word Index

Gleditsia japonica - Triterpenoid Saponins - Field Desorption Mass Spectrometry - Isotopic Abundance Measurements - Molecular Weight and Sequence Determination

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