B. Bogomolov, E. D. Gel'fand, G. F. Prokshin
Mar 1, 1966
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Journal
Chemistry of Natural Compounds
Abstract
The alkaloids were absorbed completely from the acid extract by KU-1 cation-exchanger, and desorption was carried out with a 1.5% solution of ammonia in 85% ethyI alcohol with subsequent elimination of the solvent by distillation in a vacuum apparatus. The yield of total alkaloids was 1.1%; from the mixture dubinidine was obtained in the form of the hydrochloride (yield 0.11% of the weight of the plant). We have treated more than I ton of raw material by this method.