
14,15-Secopregnane-type C21-steriosides from the roots of Cynanchum stauntonii
Keywords: Cynanchum stauntonii; Asclepiadaceae; 14,15-Secopregnane-type C21-steriosides; Stauntogenins E and F; Stauntosides U, V, V1-V3, W, and C1-C3; Structure elucidation; Anti-inflammatory activity;