Qingyanshengenin (NSC 379666; compound 2), a pregnane glycoside, is a C21 steroidal aglycone isolated from the root of Cynanchumot ophyllum (Asclepiadaceae). Qingyanshengenin has anti-cancer activity[1].
[1]. Dong J, et al. C21 steroidal glycosides with cytotoxic activities from Cynanchum otophyllum. Bioorg Med Chem Lett. 2018 May 15;28(9):1520-1524.
















