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一种来自褐藻绳藻的新型间苯三酚鞣质。

A new phlorotannin from the brown alga Ecklonia stolonifera.

作者信息

Kang Hye Sook, Chung Hae Young, Jung Jee Hyung, Son Byeng Wha, Choi Jae Sue

机构信息

Faculty of Food Science and Biotechnology, Pukyong National University, Busan, Korea.

出版信息

Chem Pharm Bull (Tokyo). 2003 Aug;51(8):1012-4. doi: 10.1248/cpb.51.1012.

DOI:10.1248/cpb.51.1012
PMID:12913249
Abstract

A new phlorotannin, named eckstolonol (1), was isolated from the EtOAc soluble fraction of the methanolic extract of the brown alga, Ecklonia stolonifera OKAMURA, along with three known phlorotannins, eckol (2), phlorofucofuroeckol A (3), and dieckol (4). The structure of eckstolonol was identified as 5,8,13,14-tetraoxa-pentaphene-1,3,6,9,11-pentaol on the basis of spectroscopic evidence. The new compound was found to be a radical scavenger on the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical.

摘要

从褐藻冈村鹅掌菜（Ecklonia stolonifera OKAMURA）甲醇提取物的乙酸乙酯可溶部分中分离出一种新的间苯三酚单宁，命名为eckstolonol（1），同时还分离出三种已知的间苯三酚单宁，eckol（2）、phlorofucofuroeckol A（3）和dieckol（4）。基于光谱证据，eckstolonol的结构被鉴定为5,8,13,14-四氧杂-戊并苯-1,3,6,9,11-五醇。发现该新化合物是1,1-二苯基-2-苦基肼基（DPPH）自由基的清除剂。

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