title: Spicachlorantins G-J, new lindenane sesquiterpenoid dimers from the roots of Chloranthus spicatus.
abstract: Four new lindenane sesquiterpenoid dimers, spicachlorantins G-J (1-4), were isolated from the roots of Chloranthus spicatus together with seven known compounds, including chloramultilide A, shizukaol B, shizukaol D, shizukaol F, shizukaol P, chlorahololide D, and cycloshizukaol A. The planar structures of the new compounds were established by 1D-, 2D-NMR, and MS analyses. The absolute configurations of these compounds were determined by analyzing rotating Overhauser enhancement and exchange spectroscopy (ROESY) and circular dichroism (CD) spectra.
authors.affiliation: Graduate School of Pharmaceutical Sciences, University of Tokushima, and Department of Clinical Pharmacy, Tokushima University Hospital, Tokushima, Japan.
authors.forename: Sang-Yong
authors.initials: SY
authors.lastname: Kim
authors.forename: Yoshiki
authors.initials: Y
authors.lastname: Kashiwada
authors.forename: Kazuyoshi
authors.initials: K
authors.lastname: Kawazoe
authors.forename: Kotaro
authors.initials: K
authors.lastname: Murakami
authors.forename: Han-Dong
authors.initials: HD
authors.lastname: Sun
authors.forename: Shun-Lin
authors.initials: SL
authors.lastname: Li
authors.forename: Yoshihisa
authors.initials: Y
authors.lastname: Takaishi
mesh_terms: D002942:Circular Dichroism; D019281:Dimerization; D029624:Ferns; D008968:Molecular Conformation; D015394:Molecular Structure; D010936:Plant Extracts / Q000032:analysis* / Q000737:chemistry* / Q000302:isolation & purification; D018517:Plant Roots; D012717:Sesquiterpenes / Q000032:analysis* / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D010936:Plant Extracts; D012717:Sesquiterpenes