Antimicrobial activities of neo- and 1-epineo-isoshinanolones from Plumbago zeylanica roots.

Context: The roots of Plumbago zeylanica Linn. (Plumbaginaceae) are reputed to have a wide spectrum of therapeutic properties in the Ayurvedic system of medicine. They are useful in curing many ailments such as skin diseases, diarrhea, plague and leprosy.