Isolation and Identification of Dioscin and Pseudoprodioscin from Di'ao Xinxuekang / 中国药房

OBJECTIVE:To isolate and identify the major constituents-steroidal saponins from Di'ao xinxuekang.METHODS:The constituents were separated and purified using normal-pressured and pressurized silica gel column chromatography technology,and the structures were identified based on the physico-chemical property and spectral analysis.RESULTS:Two steroidal saponins were obtained from Di'ao xinxuekang and their structures were identified as dioscin(1)and pseudoprodioscin(2).CONCLUSION:Compound 1 and 2 were demonstrated to be two major constituents in Di'ao xinxuekang.This finding is of great importance for the quality control and evaluation of Di'ao xinxuekang(Chinese Medicine).