A new sterol glycoside from Securidaca inappendiculata

From the roots of Securidaca inappendiculata, one new sterol glycoside securisteroside ( 1) has been isolated, along with two known sterols, spinasterol ( 2) and 3-O-beta-D-glucopyranosyl- spinasterol ( 3). The new sterol was characterized by chemical and spectrometric methods, including EIMS, FABMS and one- and two-dimensional NMR experiments.