title: Triterpenoids from Lawsonia alba.
abstract: Two pentacyclic triterpenoids have been isolated from the aerial parts of Lawsonia alba. The structures of the new constituents, named as lawsonic acid and lawsonin have been elucidated as 3 alpha-E-ferulyloxy-lup-20(29)-en-28-oic acid and 3 alpha-E-ferulyloxy-urs-11-en-13 beta-ol respectively through spectroscopic studies.
authors.affiliation: H.E.J. Research Institute of Chemistry, University of Karachi, Pakistan. bina@khi.comsats.net.pk
authors.forename: B S
authors.initials: BS
authors.lastname: Siddiqui
authors.forename: M N
authors.initials: MN
authors.lastname: Kardar
mesh_terms: D000935:Antifungal Agents / Q000737:chemistry / Q000302:isolation & purification; D029561:Lythraceae / Q000737:chemistry*; D009285:Naphthoquinones / Q000737:chemistry* / Q000302:isolation & purification; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D000935:Antifungal Agents; D009285:Naphthoquinones; D014315:Triterpenes; C005090:lawsone