title: Macrophyllols A and B, two unusual novel sesquiterpene and monoterpene dimers from the bark of Inula macrophylla.
abstract: [structure: see text] Two novel sesquiterpene and monoterpene dimers, macrophyllols A (1) and B (2), were isolated from the bark of Inula macrophylla. Their structures were determined on the basis of spectral evidence (especially HREIMS and 2D NMR) as well as chemical transformation. The structure of macrophyllol A (1) was confirmed by X-ray analysis. The possible biosynthetic pathways of macrophyllols A (1) and B (2) are discussed.
authors.affiliation: Faculty of Pharmaceutical Sciences, University of Tokushima, Japan.
authors.forename: B N
authors.initials: BN
authors.lastname: Su
authors.forename: Y
authors.initials: Y
authors.lastname: Takaishi
authors.forename: M
authors.initials: M
authors.lastname: Tori
authors.forename: S
authors.initials: S
authors.lastname: Takaoka
authors.forename: G
authors.initials: G
authors.lastname: Honda
authors.forename: M
authors.initials: M
authors.lastname: Itoh
authors.forename: Y
authors.initials: Y
authors.lastname: Takeda
authors.forename: O K
authors.initials: OK
authors.lastname: Kodzhimatov
authors.forename: O
authors.initials: O
authors.lastname: Ashurmetov
mesh_terms: D019281:Dimerization; D038143:Inula; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D015394:Molecular Structure; D013729:Terpenes / Q000737:chemistry / Q000302:isolation & purification*; D014197:Trees / Q000737:chemistry*
chemical_list: D013729:Terpenes