title: Limonoids from Cedrela sinensis.
abstract: Five limonoids were isolated from the leaves of Cedrela sinensis (Meliaceae) and their structures were determined to be 11beta-hydroxy-7alpha-obacunyl acetate, 11-oxo-7alpha-obacunyl acetate, 11-oxo-7alpha-obacunol, 11beta-hydroxycneorin G, and 11-oxocneorin G, by 2D NMR spectroscopic experiments, X-ray crystallographic analysis, and chemical methods.
authors.affiliation: School of Pharmacy, Tokyo University of Pharmacy and Life Science, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan.
authors.forename: Kumiko
authors.initials: K
authors.lastname: Mitsui
authors.forename: Masato
authors.initials: M
authors.lastname: Maejima
authors.forename: Haruhiko
authors.initials: H
authors.lastname: Fukaya
authors.forename: Yukio
authors.initials: Y
authors.lastname: Hitotsuyanagi
authors.forename: Koichi
authors.initials: K
authors.lastname: Takeya
mesh_terms: D031587:Cedrela / Q000737:chemistry*; D018360:Crystallography, X-Ray; D036701:Limonins / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D008968:Molecular Conformation; D015394:Molecular Structure; D010084:Oxidation-Reduction; D018515:Plant Leaves / Q000737:chemistry
chemical_list: C495471:11-oxo-7alpha-obacunol; C495474:11-oxo-7alpha-obacunyl acetate; C495473:11beta-hydroxy-7alpha-obacunyl acetate; C495472:11beta-hydroxycneorin G; D036701:Limonins