title: Guajadial: an unusual meroterpenoid from guava leaves Psidium guajava.
abstract: Guajadial (1), a novel caryophyllene-based meroterpenoid, was isolated from the Leaves of Psidium guajava (guava). The structure and relative stereochemistry of guajadial (1) were elucidated by extensive spectroscopic analysis. A possible biosynthetic pathway for 1 was proposed.
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, P. R. China.
authors.forename: Xiao-Long
authors.initials: XL
authors.lastname: Yang
authors.forename: Kun-Lung
authors.initials: KL
authors.lastname: Hsieh
authors.forename: Ji-Kai
authors.initials: JK
authors.lastname: Liu
mesh_terms: D009682:Magnetic Resonance Spectroscopy / Q000379:methods / Q000592:standards; D013058:Mass Spectrometry / Q000379:methods; D008968:Molecular Conformation; D018515:Plant Leaves / Q000737:chemistry*; D031647:Psidium / Q000737:chemistry*; D012015:Reference Standards; D013237:Stereoisomerism; D013729:Terpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D013729:Terpenes; C525798:guajadial