Abstract
Abstract Three triterpenoids have for the first time been isolated from fresh undried jute root, ursolic acid as its acetate, corosolic acid as its acetate and indicated to be urs-2a,2β-diol-12-en-28-oic-acid and oxo-corosin isolated as its acetate-methyl-ester, C36H54O10, m.p. 160 °C, aD-15° (c 0.435%). The 24-carboxyl in corosin-anhydro-lactone-acetate has been reduced to the methyl group and the resultant lactone on acetylation indicated to be identical with tormentic acid lactone acetate.
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