title: Structure elucidation and NMR spectral assignment of five new xanthones from the bark of Garcinia xanthochymus.
abstract: Five new xanthones, namely Garcinexanthones A-E (1-5), were isolated from the barks of Garcinia xanthochymus. Their structures were elucidated by spectral analysis, primarily NMR, MS, and UV. The complete assignments of the (1)H NMR and (13)C NMR chemical shifts for the compounds were achieved by using 1D and 2D NMR techniques, including DEPT, HSQC, and HMBC NMR experiments.
authors.affiliation: Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, Central China Normal University, 152 Luoyu Road, Wuhan 430079, PR China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Chen
authors.forename: Fangfang
authors.initials: F
authors.lastname: Zhong
authors.forename: Hongwu
authors.initials: H
authors.lastname: He
authors.forename: Yun
authors.initials: Y
authors.lastname: Hu
authors.forename: Dan
authors.initials: D
authors.lastname: Zhu
authors.forename: Guangzhong
authors.initials: G
authors.lastname: Yang
mesh_terms: D029760:Garcinia / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D013058:Mass Spectrometry; D015394:Molecular Structure; D024301:Plant Bark / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D044004:Xanthones / Q000737:chemistry*
chemical_list: D044004:Xanthones