title: Two new C-15 enolic acyl phragmalin-type limonoids from Chukrasia tabularis var. velutina.
abstract: Two new C-15 enolic acyl phragmalin-type limonoid orthoesters, chukvelutilide G (1) and chukrasine F (2), were isolated from the stem barks of Chukrasia tabularis var. velutina. Their structures were elucidated by their extensive high resolution-electrospray ionization mass spectrometry (HR-ESI-MS), one- and two-dimensional spectroscopic analysis, including heteronuclear single quantum coherence (HSQC), HMBC and NOESY experiments.
authors.affiliation: Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Luo
authors.forename: Yi
authors.initials: Y
authors.lastname: Li
authors.forename: Jun-Song
authors.initials: JS
authors.lastname: Wang
authors.forename: Ling-Yi
authors.initials: LY
authors.lastname: Kong
mesh_terms: D036701:Limonins / Q000737:chemistry*; D029582:Meliaceae / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D024301:Plant Bark / Q000737:chemistry*; D018547:Plant Stems / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization
chemical_list: D036701:Limonins