《来自甜槠叶子的酚类化合物》。

Phenolic Compounds from the Leaves of Castanopsis fargesii.

机构信息

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.

Department of Natural Product Chemistry, Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan.

出版信息

Molecules. 2017 Jan 19;22(1):162. doi: 10.3390/molecules22010162.

DOI:10.3390/molecules22010162

PMID:28106844

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6155740/

Abstract

In the course of a phytochemical and chemotaxonomical investigation of species (Fagaceae), three new phenolic compounds, (3,1')-[1'-(6″--galloyl-β-d-gluco-pyranosyl)oxyethyl]-3-hydroxy-dihydrofuran-2(3)-one (), (2,3)-2-[2'-(galloyl)oxyethyl]-dihydroxybutanoic acid (), and (3,4)-3-hydroxymethyl-3,4-dihydro-5,6,7-trihydroxy-4-(4'-hydroxy-3'-methoxyphenyl)-1-[2]-benzopyran-1-one () were isolated from the fresh leaves of . In addition, a known phenolic glycoside, gentisic acid 5--α-l-rhamnopyranosyl-(1→2)-β-d-glucopyranoside () was also isolated and identified. Their structures were elucidated by means of spectroscopic methods including one- and two-dimensional NMR techniques.

摘要

在对种（壳斗科）的植物化学和化学分类学研究过程中，从的新鲜叶子中分离得到了三种新的酚类化合物：(3,1')-[1'-(6″-- 没食子酰基-β-d-吡喃葡萄糖基)氧基乙基]-3-羟基二氢呋喃-2(3)-酮 ()、(2,3)-2-[2'-( 没食子酰基)氧基乙基]-二羟基丁酸 () 和 (3,4)-3-羟甲基-3,4-二氢-5,6,7-三羟基-4-(4'-羟基-3'-甲氧基苯基)-1-[2]-苯并吡喃-1-酮 ()。此外，还分离并鉴定了一种已知的酚糖苷，即没食子酸 5--α-l-鼠李吡喃糖基-(1→2)-β-d-吡喃葡萄糖苷 ()。通过包括一维和二维 NMR 技术在内的光谱方法阐明了它们的结构。