New C21 Steroidal Glycosides from Marsdenia tenacissima Advances in studies on C21 steroidal glycosides of plants in Asclepiadaceae Current situation of research on Cynanchi Bungei Radix A NOVEL C21 STEROIDAL GLYCOSIDE FROM MARSDENIA INCISA Determination of C21 steroidal glycosides in total glycosides H from Marsdenia tenaccima New Steroidal Glycosides from Ophiopogon japonicus Effect of C21 teroidal glycoside from root of Cynanchum auriculatum on D-galactose induced aging model mice Cixi-ophiopogon A and B,C27 Steroidal Glycosides from Ophiopogon japonicum Study on C21 steroidal glycosides of Cynanchum atratum by LC-MS Studies on Chemical Constituents of Hemsleya graciliflora (Harms) Cogn. A New Steroidal Glycoside from Ophiopogon japonicus (Thunb.) Ker-Gawl. Enzymatic Degradation of Parvifloside Research advances on chemical constituents of Solanum melongena and their pharmacological activities Optimization of the hydrolysis process for C21 steroidal glycoside of Bai Shou Wu by acetic acid with multi-target orthogonal design Steroidal glycosides from Solanum nigrum A new neolignan from fruit of Solanum torvum Deter mination of C21 steroidal glycosides in Marsdenia tenacissima by colorimetric method Distribution of C(21) steroidal glycosides in plants of Asclepiadaceae and their pharmacological activities Determination of C21 steroidal glycosides in total glycosides H from Marsdenia tenaccima