Showing papers on "Indole alkaloid published in 1973"
64 citations
TL;DR: Chemical analysis showed that the seeds of Argyreia nervosa contain the highest percentage of indole alkaloid constituents (0.5-0.9%) of the genera of the Convolvulaceae thus far studied.
45 citations
8 citations
Patent•
24 Oct 1973TL;DR: In this article, the leaves of Vinca rosea were extracted with acid, neutralizing the acidic solution, extracting the dimeric indole alkaloids into an aromatic solvent, optionally subjecting the extracted alkaloid to gel exclusion chromatography, precipitating the sulfate salts and finally separating the denoised dimeric alkalinoids by high-pressure chromatography.
Abstract: Dimeric indole alkolids-vinblastine, des-N-methyl-vinblastine and vincristine-are purified by extracting leaves of Vinca rosea with acid, neutralizing the acidic solution, extracting the dimeric alkaloids into an aromatic solvent, optionally subjecting the extracted alkaloids to gel exclusion chromatography, precipitating the dimeric alkaloids as sulfate salts and finally separating the dimeric alkaloids by high-pressure chromatography.
6 citations
TL;DR: The qualitative characterization of 38 indole alkaloids has been performed by chromatography on kieselguhr G and Silufol with the reagents cerium ammonium sulfate and ferric chloride.
Abstract: The qualitative characterization of 38 indole alkaloids has been performed by chromatography on kieselguhr G and Silufol with the reagents cerium ammonium sulfate and ferric chloride.
1 citations