13C-NMR. Spectroscopy of Naturally Occurring Substances. XXXII. Vincaleucoblastine and related alkaloids
Autor: | E. W. Hagaman, Ernest Wenkert, Jean C. Miller, Gerald E. Gutowski, Bansi Dr. Lal, Allen S. Katner, Norbert Neuss |
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Rok vydání: | 1975 |
Předmět: | |
Zdroj: | Helvetica Chimica Acta. 58:1560-1567 |
ISSN: | 1522-2675 0018-019X |
DOI: | 10.1002/hlca.19750580608 |
Popis: | The total assignment of the 13C-shifts of the complex Vinica rosea L. alkaloids vincaleucoblastine, leurosidine and leurosine and of a synthetic isomer of the latter is presented. The structure of leurosidine is corrected and a tentative structure for the acid-catalyzed product of isomerization of leurosine is proposed. |
Databáze: | OpenAIRE |
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