Rearrangement de la catharine en milieu acide: action de l'acide trifluoroacetique |
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| Authors: | P Rasoanaivo N Langlois A Chiaroni C Riche |
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| Institution: | Institut de Chimie des Substances Naturelles, C.N.R.S., 91190 Gif-sur-Yvette, France |
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| Abstract: | Cleavage of catharine 1 by trifluoroacetic acid led to a pentacyclic product formed by rearrangement of the ibogane moiety with participation of the enamide function. The N-formyl group of compound 5, obtained after NaBH3CN reduction, was hydrolyzed leading to a hexacyclic derivative, the structure of which was established by X-ray analysis. |
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