title: Diterpenes from Laennecia sophiifolia.
abstract: From the aerial parts of Laennecia sophiifolia (Kunth) G.L. Nesom, a neo-clerodane and an acyclic furano diterpene were isolated, along with four known compounds, 2beta-hydroxyhardwickiic acid, hawtriwaic acid, apigenin, and beta-sitosterol. Their structures were established as 12-epi-bacchotricuneatin A and (2E,6E)-9-(3-furyl)-6-methyl-2-(4-methylpent-3-enyl)-nona-2,6-dienoic acid, by analysis of spectral evidence. The absolute structure of 12-epi-bacchotricuneatin A was determined by a circular dichroism spectral comparison with that of bacchotricuneatin A.
authors.affiliation: INTEQUI-CONICET-Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Argentina.
authors.forename: M J
authors.initials: MJ
authors.lastname: Simirgiotis
authors.forename: L S
authors.initials: LS
authors.lastname: Favier
authors.forename: P C
authors.initials: PC
authors.lastname: Rossomando
authors.forename: O S
authors.initials: OS
authors.lastname: Giordano
authors.forename: C E
authors.initials: CE
authors.lastname: Tonn
authors.forename: J I
authors.initials: JI
authors.lastname: Padrón
authors.forename: J T
authors.initials: JT
authors.lastname: Vázquez
mesh_terms: D019659:Asteraceae / Q000737:chemistry*; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D013057:Spectrum Analysis
chemical_list: D004224:Diterpenes