title: Two new triterpenoids from Zygophyllum eurypterum.
abstract: Two new triterpenoids trivially named as atriplicoide A and B were isolated from the n-BuOH extract of the whole plant of Zygophyllum eurypterum. Based on EI-MS, IR, 1H- and 13C-NMR, and 2D-NMR (HMQC, HMBC, COSY and NOESY) data, the structures of the new compounds were determined as 30-carboxy-3beta,24-dihydroxy-urs-28,13beta-lactam-N-acetate (1) and 3beta,24-dihydroxyursan-28,13beta-olide (2).
authors.affiliation: H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi-75270, Pakistan.
authors.forename: Shazia
authors.initials: S
authors.lastname: Iqbal
authors.forename: Afsar
authors.initials: A
authors.lastname: Khan
authors.forename: Viqar Uddin
authors.initials: VU
authors.lastname: Ahmad
authors.forename: Murad Ali
authors.initials: MA
authors.lastname: Khan
authors.forename: Sadia
authors.initials: S
authors.lastname: Bader
authors.forename: Umar
authors.initials: U
authors.lastname: Farooq
authors.forename: Saleha Suleman
authors.initials: SS
authors.lastname: Khan
authors.forename: Aqib
authors.initials: A
authors.lastname: Zahoor
authors.forename: Rasool Bakhsh
authors.initials: RB
authors.lastname: Tareen
mesh_terms: D009682:Magnetic Resonance Spectroscopy; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*; D032445:Zygophyllum / Q000737:chemistry*
chemical_list: D014315:Triterpenes; C557439:atriplicoide A; C557440:atriplicoide B