title: Triterpenoids from Arctium lappa.
abstract: Phytochemical investigation of the leaves of Arctium lappa led to the isolation of two triterpenoids, characterised by NMR, IR and MS as 3α-hydroxylanosta-5,15-diene and 3α-acetoxy-hop-22(29)-ene. 3α-hydroxylanosta-5,15-diene is a new triterpenoid and is isolated for the first time from this genus.
authors.affiliation: Department of Chemistry, University of Kashmir, Srinagar 190006, Jammu and Kashmir, India. salikajeelani@yahoo.com
authors.forename: S
authors.initials: S
authors.lastname: Jeelani
authors.forename: M A
authors.initials: MA
authors.lastname: Khuroo
mesh_terms: D031170:Arctium / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008968:Molecular Conformation; D018515:Plant Leaves / Q000737:chemistry; D013055:Spectrophotometry, Infrared; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: C573164:3alpha-acetoxy-hop-22(29)-ene; C573163:3alpha-hydroxylanosta-5,15-diene; D014315:Triterpenes