Urease inhibitor from Datisca cannabina linn

A new flavonoid datisdirin (1), along with eight known compounds tectochrysine (2), cearoin (3), sideroxyline (4), ursolic acid (5), corosolic acid (6), arjunolic acid (7), erythrodiol (8) and oleanolic acid (9), were isolated from the ethyl acetate fraction of D. cannabina Linn. The structure of compound 1 was deduced on the basis of its spectral data. Datisdirin showed activity against the ureases enzyme.