来自日本梨（Pyrus serotina Rehd.）品种“新光”嫩枝树皮的羽扇豆醇酯。

Lupeol esters from the twig bark of Japanese pear (Pyrus serotina Rehd.) cv. Shinko.

作者信息

Tomosaka H, Koshino H, Tajika T, Omata S

机构信息

Department of Chemistry and Materials Science, Gunma National College of Technology, Maebashi, Japan.

出版信息

Biosci Biotechnol Biochem. 2001 May;65(5):1198-201. doi: 10.1271/bbb.65.1198.

DOI:10.1271/bbb.65.1198

PMID:11440139

Abstract

Five new lupeol esters, lup-20(29)-ene-3beta-yl eicosanoate, docosanoate, tetracosanoate, hexacosanoate and octacosanoate, were isolated as a mixture from the twig bark of Japanese pear (Pyrus serotina Rehd.) cv. Shinko, together with lupeol and epifriedelinol. Their structures were determined by spectral analyses including 2D-NMR experiments.

摘要

从日本梨（Pyrus serotina Rehd.）品种新光的嫩枝树皮中分离出五种新的羽扇豆醇酯，即羽扇-20(29)-烯-3β-基二十烷酸酯、二十二烷酸酯、二十四烷酸酯、二十六烷酸酯和二十八烷酸酯，它们与羽扇豆醇和表木栓醇混合在一起。通过包括二维核磁共振实验在内的光谱分析确定了它们的结构。