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REVISED STRUCTURES OF THE AZAFLUORENONE ALKALOIDS FROM GUAITERIA DIELSIANA

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1986-10-28
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Tadic, Dragana
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REVISED STRUCTURES OF THE AZAFLUORENONE ALKALOIDS FROM GUAITERIA DIELSIANA
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  • Tadic, Dragana;
  • Cassels Niven, Bruce;
  • Cavé, André;
  • Goulart, Marília O. F.;
  • De Oliveira, Alaíde B.;
Abstract
The structures of three alkaloids isolated from Guatteria dielsiana, 6-methoxyonychine, dielsine and dielsinol, originally described as l-azafluoren-9-ones, are revised to 4-azafluoren-9-ones on the basis of previous synthetic work and current studies on alkaloids of the Annonaceae. Synthetic 6-methoxyonychine (6-methoxy-lmethyl- 4-azafluoren-9-one) is shown to be identical with the natural product.
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URI: https://repositorio.uchile.cl/handle/2250/119596
ISSN: 0031-9422
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Phytochemislry. Vol. 26, No. 5, pp. 1551-1552, 1987
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