title: Three new seco-ursadiene triterpenoids from Salvia syriaca.
abstract: Three new seco-ursadiene triterpenoids 1-3 together with 11 known compounds were isolated from Salvia syriaca of Jordanian origin. The compounds were identified by using NMR spectroscopy including extensive 2D NMR experiments and mass spectrometry. The structure of compound 3 was confirmed by X-ray crystallography, and the information thus obtained was used to confirm the stereochemistry of compounds 1 and 2. This is the second report of 17,22-seco-17(28),12-ursadien-22-oic acids.
authors.affiliation: a Chemistry Department , Faculty of Science, The University of Jordan , Amman 11942 , Jordan.
authors.forename: Amal M F
authors.initials: AM
authors.lastname: Al-Aboudi
authors.forename: Musa H
authors.initials: MH
authors.lastname: Abu Zarga
authors.forename: Barakat E
authors.initials: BE
authors.lastname: Abu-Irmaileh
authors.forename: Firas F
authors.initials: FF
authors.lastname: Awwadi
authors.forename: Monther A
authors.initials: MA
authors.lastname: Khanfar
mesh_terms: D018360:Crystallography, X-Ray; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D015394:Molecular Structure; D027544:Salvia / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D014315:Triterpenes
keywords: 17,22-seco-17(28),12-ursadien-22-oic acid; Labiateae; Salvia syriaca; X-ray; seco-ursadiene; triterpenoids