STUDIES ON THE CHEMICAL CONSTITUENTS OF CYNANCHUM THESIOIDES

Fourteen constituents were isolated from Cynanchum thesioides(Freyn)K. Schum. Onthe basis of chemical and spectral data, seven of them have been identified including two new com-pounds:glyeeride-1,3-dipalmito-2-sorbate (4), and thesoide (7); and five known compounds:amyrin acetate (1), lupeol acetate (2), α-amyrin caprylate (3), tamarixetin (5) and tamarixetin-3-O-β-D-galacto-pyranoside (6).