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Alkaloide aus Conopharyngia durissima S TAPF Isovoacangin, Conopharyngin, Conodurin und Conoduramin
Author(s) -
Renner U.,
Prins D. A.,
Stoll W. G.
Publication year - 1959
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19590420519
Subject(s) - chemistry , stereochemistry , bark (sound) , alkaloid , forestry , geography
One known and four new alkaloids have been isolated from C. durissima S TAPF . Isovoacangine (VII) (first isolated from Stemmadenia ), conopharyngine (VIII), and possibly also Alkaloid E are monomeric isoquinuclidine bases found in root and stem bark; conodurine and conoduramine, however, are dimeric and found only in the roots. A mild and simple method is described for the decarbomethoxylation of ester bases of the voacangine type to substances of the ibogaine type.