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Alkaloids from swertia mileensis were isolated successfully by high speed countercurrent chromatography with a two phase solvent system, CHCl 3∶CH 3OH∶NaH 2PO 4(pH=5.3)=4∶3∶1,to obtain 6 components,in which 3 components exhibited orange red colour with bismuth potassium iodide reagent.The results were verified by TLC and six pure components were isolated.One was characterized as gentianine(28.5%) by spectroscopic method.
Alkaloids from swertia mileensis were isolated successfully by high speed countercurrent chromatography with a two-phase solvent system, CHCl 3: CH 3 OH: NaH 2 PO 4 (pH = 5.3) = 4: 3: 1, to obtain 6 components, orange red color with bismuth potassium iodide reagent.The results were verified by TLC and six pure components were isolated. One was characterized as gentianine (28.5%) by spectroscopic method.