Guaiacin A and B from the Leaves of Guaiacum officinale |
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| Authors: | Ahmad V U Perveen S Bano S |
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| Institution: | H. E. J. Research Institute of Chemistry, University of Karachi, Karachi-32, Pakistan. |
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| Abstract: | Guaiacin A and B, two new saponins, have been isolated from the leaves of G. OFFICINALE and were characterised on the basis of (13)C-NMR and FAD mass spectroscopy as 3- O-(beta- D-glucopyranosyl (1-->3)-alpha- L-arabinopyranosyl]-30-nor-olean-12,20(29)-dien-28- O-beta- D-glucopyranosyl ester ( 1) and 3- O- D-glucopyranosyl-(1-->3)-alpha- L-arabinopyranosyl] oleanolic acid-28- O-beta- D-glucopyranosyl ester ( 2). |
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