title: Novel polyprenylated phloroglucinols from Hypericum sampsonii.
abstract: Hypericum sampsonii Hance (Clusiaceae) is a folk medicine used in Taiwan to treat blood stasis, relieve swelling, and as an anti-hepatitis drug. Two new polyprenylated phloroglucinol derivatives, hypersampsone R (1) and hypersampsone S (2), and a known prenylated benzophenone, hyperibone K (3) were isolated from the aerial parts of H. sampsonii. Their structures were determined by extensive 1D and 2D NMR, and MS spectral analyses.
authors.affiliation: Department of Pharmacy, Tajen University, Pingtung 907, Taiwan. jjchen@tajen.edu.tw.
authors.forename: Jih-Jung
authors.initials: JJ
authors.lastname: Chen
authors.affiliation: National Research Institute of Chinese Medicine, Taipei 112, Taiwan. f92641017@ntu.edu.tw.
authors.forename: Hong-Jhang
authors.initials: HJ
authors.lastname: Chen
authors.affiliation: National Research Institute of Chinese Medicine, Taipei 112, Taiwan. yllin@nricm.edu.tw.
authors.forename: Yun-Lian
authors.initials: YL
authors.lastname: Lin
mesh_terms: D066241:Carbon-13 Magnetic Resonance Spectroscopy; D020902:Hypericum / Q000737:chemistry*; D010696:Phloroglucinol / Q000737:chemistry* / Q000302:isolation & purification*; D054876:Prenylation; D066244:Proton Magnetic Resonance Spectroscopy
chemical_list: D010696:Phloroglucinol