Immunomodulating Steroidal Glycosides from the Roots of Stephanotis Mucronata

1 Introduction The plants beonging to the Asclepiadaceae family are reported to be rich in pregnane and cardiac glycosides.In recent years, the pregnanes and their glycosides hale been shown to possess antitumor, antiepilepsy, and antifertility activities. The dried roots of Stephanotis mncronata(BLANCO) Meer.