Citropremide and Citropridone: A New Ceramide and a New Acridone Alkaloid from the Stem Bark of Citropsis gabunensis

Helvetica Chimica Acta
2011.0

Abstract

<jats:title>Abstract</jats:title><jats:p>The structure elucidation and complete <jats:sup>1</jats:sup>H‐ and <jats:sup>13</jats:sup>C‐NMR assignments are reported for two new compounds: the ceramide citropremide (<jats:bold>1</jats:bold>), and the acridone alkaloid citropridone (<jats:bold>2</jats:bold>). Both of these secondary metabolites were isolated from the stem bark of <jats:italic>Citropsis gabunensis.</jats:italic> High‐resolution mass, IR and UV spectrometry, and NMR experiments including COSY, HMQC, and HMBC were used for the determination of the structures and NMR spectral assignments.

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