'Zang-Yin-Chen' ( ZYC) is a traditional Tibetan medicine for the treatment of hepatitis and cholecystitis. The plant Swertia franchetiana Smith (family Gentianaceae) is distributed in Qinghai-Tibet Plateau and used as plant materials of ZYC. In order to clarify the chemical foundation of this herb, the dissertation describes the preparation, isolation and characterization of bioactive principles from S. franchetiana. The main research results are as follows:
The methanol crude extract o...