Browsing by Author "Eckhardt, Gert"

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    • (+ )-9C(-HYOROXYMATRINE FROM SOPHORA MACROCARPA 
      Negrete Córdova, Rosa; Cassels Niven, Bruce; Eckhardt, Gert (Pergamon Press Ltd., 1983-01-21)
      A new quinolizidine alkaloid, (+ )-9cx-hydroxymatrine, was isolated from the lea ves of Sophora macrocarpa. Its structure was determined by a combination of spectroscopic methods, among which nuclear Overhauser enhancement ...
    • MASS SPECTROMETRY OF ARISTOLOCHIC ACIDS 
      Eckhardt, Gert; Urzúa, Alejandro; Cassels Niven, Bruce (American Chemical Society, 1981-12-08)
      The electron impact-induced fragmentation of aristolochic acids and some synthetic model compounds has been investigated using high resolution mass spectrometry. It was found that the only primary cleavage given by ...