Structural and stereochemical studies of saraines: Macrocyclic alkaloids of the sponge Reniera sarai
โ Scribed by Yuewei Guo; Anna Madaio; Enrico Trivellone; Gennaro Scognamiglio; Guido Cimino
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- French
- Weight
- 478 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0040-4020
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๐ SIMILAR VOLUMES
Two cytotoxic alkaloids, haliclamines A and B, have been isolated from a sponge Haliclona sp., and their structures were elucidated mainly by spectroscopic analyses including extensive 2D NMR experiments.
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