TY - BOOK AU - INDERPAL, Singh TI - Chemistry and biological activity of sesouiterpene lactones from Saussurea lappa U1 - T 547.71 I-2C PY - 1992/// CY - Ludhiana PB - PAU KW - TERPENES KW - L - METHYLENE - R - LACTOENE KW - LACTONES KW - SAUSSUREA LAPPASESQUITERPENE LACTONES N2 - Research work on costus roots oil (Saussurea lappa) has led to the isolation of two hitherto unknown sesquiterpene lactonls 4- -methoxy dehydrocostus factone and saussureal. A variety of reactions have been carried out on various terpenoids from costus ro ER -