title: Phenolic Compounds from the Leaves of Castanopsis fargesii.
abstract: In the course of a phytochemical and chemotaxonomical investigation ofCastanopsisspecies (Fagaceae), three new phenolic compounds, (3R,1'S)-[1'-(6″-O-galloyl-β-d-gluco-pyranosyl)oxyethyl]-3-hydroxy-dihydrofuran-2(3H)-one (1), (2R,3S)-2-[2'-(galloyl)oxyethyl]-dihydroxybutanoic acid (2), and (3S,4S)-3-hydroxymethyl-3,4-dihydro-5,6,7-trihydroxy-4-(4'-hydroxy-3'-methoxyphenyl)-1H-[2]-benzopyran-1-one (3) were isolated from the fresh leaves ofCastanopsis fargesii. In addition, a known phenolic glycoside, gentisic acid 5-O-α-l-rhamnopyranosyl-(1→2)-β-d-glucopyranoside (4) was also isolated and identified. Their structures were elucidated by means of spectroscopic methods including one- and two-dimensional NMR techniques.
authors.affiliation: Guangxi Key Laboratory of Functional Phytochemicals Research and Utilization, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, China. hyl@gxib.cn.
authors.forename: Yong-Lin
authors.initials: YL
authors.lastname: Huang
authors.affiliation: Guangxi Key Laboratory of Functional Phytochemicals Research and Utilization, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, China. wyf@gxib.cn.
authors.forename: Ya-Feng
authors.initials: YF
authors.lastname: Wang
authors.affiliation: Guangxi Key Laboratory of Functional Phytochemicals Research and Utilization, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, China. ljl@gxib.cn.
authors.forename: Jin-Lei
authors.initials: JL
authors.lastname: Liu
authors.affiliation: Guangxi Key Laboratory of Functional Phytochemicals Research and Utilization, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, China. jgswl@gxib.cn.
authors.forename: Lei
authors.initials: L
authors.lastname: Wang
authors.affiliation: Department of Natural Product Chemistry, Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan. t-tanaka@nagasaki-u.ac.jp.
authors.forename: Takashi
authors.initials: T
authors.lastname: Tanaka
authors.affiliation: Guangxi Key Laboratory of Functional Phytochemicals Research and Utilization, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, China. chyy@gxib.cn.
authors.forename: Yue-Yuan
authors.initials: YY
authors.lastname: Chen
authors.affiliation: Guangxi Key Laboratory of Functional Phytochemicals Research and Utilization, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, China. lufenglai@gxib.cn.
authors.forename: Feng-Lai
authors.initials: FL
authors.lastname: Lu
authors.affiliation: Guangxi Key Laboratory of Functional Phytochemicals Research and Utilization, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, China. ldp@gxib.cn.
authors.forename: Dian-Peng
authors.initials: DP
authors.lastname: Li
mesh_terms: D029962:Fagaceae / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010636:Phenols / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry; D018515:Plant Leaves / Q000737:chemistry*
chemical_list: D010636:Phenols; D010936:Plant Extracts
keywords: Castanopsis; Castanopsis fargesii; cytotoxicity; phenolic