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 comp...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.展开更多
文摘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.
