The polybuffer separation of the alkaloids of Vinca erecta
By separating the total alkaloids ofV.erecta according to their basicities in an APS, in addition to bases known previously we have isolated ervincidine, apovincamine, (+)-quebrachamine, dl-eburnamine, (−)-1,2-dehydroaspidospermidine, and kopsanone. This is the first time that these alkaloids have been obtained from this plant. Thin-layer chromatography showed the presence of another 10–12 uncharacterized alkaloids.
The region of the passage into the buffer solutions of some alkaloids has also been established.
KeywordsAlkaloid Total Alkaloid Vincamine Caustic Potash Petroleum Ether Fraction
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