Five new prenylated benzoylphloroglucinol derivatives, garciesculentones A-E (1-5), a new xanthone, garciesculenxanthone A (6), and 15 known compounds were isolated from the petroleum ether extract and the EtOAc-soluble fraction of a 80% (v/v) EtOH extract of Garcinia esculenta. The structures of the new compounds were elucidated by 1D- and 2D-NMR spectroscopic analysis and mass spectrometry. Experimental and calculated ECD and a convenient modified Mosher's method were used to determine the absolute configurations. The cytotoxicity of these compounds were evaluated by MTT assay against three human cancer cell lines (HepG2, MCF-7, and MDA-MB-231) and against normal hepatic cells (HL-7702). In addition, these isolates were evaluated for their inhibitory effects on interferon-γ plus lipopolysaccharide-induced nitric oxide production in RAW264.7 cells.
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http://dx.doi.org/10.1021/np5003498 | DOI Listing |
Mitochondrial DNA B Resour
October 2024
College of Pharmacy, Dali University, Dali, China.
Y. H. Li.
View Article and Find Full Text PDFFitoterapia
January 2024
BioBioPha Co., Ltd., Kunming 650201, People's Republic of China; Reference Substance Branch, National Engineering Research Center for Modernization of Traditional Chinese Medicine, Kunming 650201, People's Republic of China. Electronic address:
Six new compounds, including two depsidones garciculendepsidones A and B (1 and 2), one prenylated xanthone garciculenxanthone (3) and three dimeric xanthones bigarciculenxanthones A-C (4-6), were isolated from the twigs and leaves of Garcinia esculenta Y. H. Li.
View Article and Find Full Text PDFActa Pharmacol Sin
February 2021
Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
Nat Prod Res
July 2021
School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China.
One new xanthone, (±) garciesculenxanthone C (), two new biphenyls, garciesculenbiphenyls A () and B (), together with two known compounds, doitungbiphenyl B () and morusignin D (), were isolated from . The structures of new compounds were elucidated by spectroscopic analysis, and the absolute configuration of (±) garciesculenxanthone C () was assigned by a modified Mosher's method. All isolates were evaluated for their antistaphylococcal activities against Newman, USA300 LAC, USA400 MW2, and Mu50 strains.
View Article and Find Full Text PDFOncotarget
January 2016
School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, P.R. China.
Metastasis causes a large number of deaths among esophageal cancer patients. The activation of RAF family proteins elevates tumor metastasis and proliferation. In screen targeting the RAF protein, we identified that Griffipavixanthone (GPX), a dimeric xanthone isolated from Garcinia esculenta, is a B-RAF and C-RAF inhibitor against esophageal cancer cells.
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