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Alkaloid studies LX. The structures of two novel aspidosperma alkaloids, deoxyaspidodispermine and aspidodispermine.

✍ Scribed by Masazumi Ikeda; Carl Djerassi


Publisher
Elsevier Science
Year
1968
Tongue
French
Weight
194 KB
Volume
9
Category
Article
ISSN
0040-4039

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Mass spectrometry in structural and ster
✍ Cari Djerassi; L.D. Antonaccio; H. Budzikiewicz; J.M. Wilson; B. Gilbert πŸ“‚ Article πŸ“… 1962 πŸ› Elsevier Science 🌐 French βš– 441 KB

IN continuation of our studies3 on the alkaloidal constituents of Brazilian Aspidosperma species, we have investigated the stem bark of Aspidosperma album (Vahl) R. Bent., which was collected in Manaus, Amaronas. The non-phenolic portion yielded the lcnown alkaloid4 (-)-quebmchamine, while from the

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In our first note1 we described some experiments with olivacine which lead to the conclusion that this base, isolated by Schmutz, Hunziker and Hirt' from A. ulei, and found by us in A. australe Mi& Argov., had a carbazol nucleus condensed with a pyridine ring; the indol-isoqtinoline structure being

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✍ A. Sandoval; F. Walls; J.N. Shoolery; J.M. Wilson; H. Budzikiewicz; Carl Djerass πŸ“‚ Article πŸ“… 1962 πŸ› Elsevier Science 🌐 French βš– 333 KB

AN earlier examination' of the alkaloids of Stemmadenia species led to the isolation of (+)-quebrachamine, a number of Iboga-type bases2 and a new alkaloid named stemmadenine (C2, H26\_28N203). The latter has also recently been en-countered3 in Diplorrhynchus condylocarpon together with a second new