title: Chemical constituents from the aerial parts of Lippia nodiflora Linn.
abstract: Phytochemical investigation of the methanolic extract of the aerial parts of Lippia nodiflora Linn. led to the isolation of a new triterpenoid lippiacin (1) and a benzofuranone rengyolone (halleridone, 2) through repeated silica gel column chromatography and semi preparative HPLC. The structures of these compounds were determined by spectroscopic methods, including 1D and 2D NMR, as well as by comparison with published data. A complete assignment of the 1H- and 13C-NMR data of 2 is reported based on 2D NMR (COSY-45, HMQC and HMBC) spectroscopic methods.
authors.affiliation: International Center for Chemical Sciences, H.E.J. Research Institute of Chemistry, and Dr. Panjwani Center for Molecular Medicine and Drug Research, University of Karachi, Karachi-75270, Pakistan. bina@khi.comsats.net.pk
authors.forename: Bina S
authors.initials: BS
authors.lastname: Siddiqui
authors.forename: Fayaz
authors.initials: F
authors.lastname: Ahmad
authors.forename: Fouzia A
authors.initials: FA
authors.lastname: Sattar
authors.forename: Sabira
authors.initials: S
authors.lastname: Begum
mesh_terms: D005663:Furans / Q000737:chemistry / Q000302:isolation & purification*; D006574:Heterocyclic Compounds, 2-Ring / Q000737:chemistry / Q000302:isolation & purification*; D032411:Lippia / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D005663:Furans; D006574:Heterocyclic Compounds, 2-Ring; C509673:Rengyolone; D014315:Triterpenes