The Structure and Stereochemistry of Lantanilic Acid. A New Triterpene Isolated from Lantana camara

Department of Chemistry, Bose Institute, Calcutta-700 009 Manuscript received 18 September 1984, accepted 15 February 1985 The structure of lantanilic acid, a new triterpene isolated from the leaves of Lantana camara, has been finally established as 22β-β,β-dimethylacryloyloxy-3,25-epoxy-3α- hydroxy-oiean-12-ene-28-oic acid (la)