METHOD OF PREPARING SENNOSIDE A, B AND $$$ MIXTURE, MIXTURE OF SENNOSIDES A, B AND $$$ AND PURGATIVE AGENT BASED ON THEREOF Russian patent published in 1998 - IPC

FIELD: pharmacy technology. SUBSTANCE: invention relates to isolation of sennosides A, B and $$$. Sennosides mixture is subjected for reduction to corresponding anthrone-8-glucosides followed by liquid-liquid dispersing anthrone-8-glucosides to remove aloe-emodin components. After extraction the obtained rhein-9-anthrone-8-glucoside is oxidized again to sennosides A, B and $$$. Invention relates to pharmaceutical agent prepared on the basis of sennosides A, B and $$$ also. EFFECT: improved method of preparing. 8 cl, 1 tbl