title: Two new limonoids from the stem barks of Chukrasia tabularis var. velutina.
abstract: Two new phragmalin-type limonoid orthoesters, C-15 enolic acyl type and 13/14/18-cyclopropanyl type, named chukvelutilide H (1) and tabularin R (2), together with three known limonoid orthoesters (3-5), were isolated from the stem barks of Chukrasia tabularis var. velutina. The structures of these two new compounds were elucidated on their extensive HR-ESI-MS, 1D, and 2D spectroscopic analysis including HSQC, HMBC, and ROESY experiments.
authors.affiliation: School of Traditional Chinese Medicine, China Pharmaceutical University, Nanjing 210009, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Li
authors.forename: Jun
authors.initials: J
authors.lastname: Luo
authors.forename: Qiang
authors.initials: Q
authors.lastname: Wang
authors.forename: Ling-Yi
authors.initials: LY
authors.lastname: Kong
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification*; D036701:Limonins / Q000737:chemistry* / Q000302:isolation & purification*; D029582:Meliaceae / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D024301:Plant Bark / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry
chemical_list: D004365:Drugs, Chinese Herbal; D036701:Limonins; C561950:chukvelutilide H; C561951:tabularin R