sinoacutine/stephania

A method which involves the combination of pH-zone-refining counter-current chromatography (pH-zone-refining CCC) and conventional high-speed counter-current chromatography (HSCCC) was established for the preparative separation of alkaloids from the crude extracts of Stephania kwangsiensis.

Eight alkaloids were isolated from the thin sulfuric acid extracts of the fresh roots of Stephania dentifolia by aluminum oxide, silica and Sephadex LH-20 column chromatography methods. Based on the spectroscopic analysis and chemical evidence, the structures of these alkaloids were identified as

OBJECTIVE To study the alkaloids in the stems and leaves of Stephania cepharantha. METHODS The dried stems and leaves of S. cepharantha were percolated with 95% ethanol and the solvent was removed by rotary evaporation to give a concentrate, and the concentrate was extracted by petroleum ether and

Seven bio-active alkaloids (stepholidine, sinoacutine, isocorydine, l-tetrahydropalmatine, crebanine, fanchinoline and tetrandrine) in Stephania plants were determined by RP-HPLC, using UV detection (282 nm) and gradient elution. The reversed phase system consisted of ODS column and