MEDICINAL COMPOSITION FOR TREATING HEPATITIS B

摘要

PURPOSE: A medicinal composition, which is useful for treating hepatitis B, and a method for recovering trapezoid compound are provided. CONSTITUTION: The medicinal composition for treating hepatitis B contains tanshinol B of a following formula 1, tanshinone IIB of a following formula 2, przewaquinone A of a following formula 3, Salvia militarize Bunge extract, Salvia militarize Bunge separated materials as an effective ingredient. The method for recovering tanshinol B of the following formula 1, tanshinone IIB of the following formula 2 and przewaquinone A of the following formula 3 comprises steps of: (i) obtaining Salvia militarize Bunge extract by using water, organic solvent or a mixture solvent thereof as an extracting solvent; (ii) concentrating the extract of step (i); and (iii) performing solvent separation and column chromatography of step (ii) to separate and purify.