title: A new triterpene from Salvia xanthocheila Boiss.
abstract: From the chloroform extract of the aerial parts of Salvia xanthocheila, one new triterpene, together with two known diterpenes, two known flavonoids and a phytosterol was isolated. On the basis of comprehensive spectroscopic analyses, including electron ionisation mass spectra, ¹H-NMR, ¹³C-NMR, 1-D nuclear Overhauser effect, distortionless enchancement by polarisation transfer, H,H correlation spectroscopy, heteronuclear multiple quantum coherence, rotating frame Overhauser enhancement spectroscopy spectra and comparison with spectral data of known compounds, the structure of new compounds was established as 1β,3β-dihydroxy-olean-9(11),12-dienyl (1). The five known compounds (2-6) were 7α-acetoxyroyleanone, taxodione, salvigenin, apigenin-7,4'-dimethyl ether and β-sitosterol, respectively. These known structures are isolated from the aerial parts of S. xanthocheila for the first time.
authors.affiliation: Faculty of Science, Department of Chemistry, Shahid Beheshti University, G.C., Tehran, Iran.
authors.forename: Somayyeh
authors.initials: S
authors.lastname: Gandomkar
authors.forename: Maryam
authors.initials: M
authors.lastname: Yousefi
authors.forename: Zohreh
authors.initials: Z
authors.lastname: Habibi
authors.forename: Mohammad Ali
authors.initials: MA
authors.lastname: As'habi
mesh_terms: D002725:Chloroform / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D035261:Plant Components, Aerial / Q000737:chemistry; D027544:Salvia / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: C573162:1beta,3beta-dihydroxy-olean-9(11),12-dienyl; D014315:Triterpenes; D002725:Chloroform