柳穿鱼中神经酰胺类成分的结构鉴定

Studies on the Ceramides of Linaria vulgaris Mill.

从柳穿鱼全草中分离到一神经酰胺成分 ,通过化学方法和1H NMR ,13 C NMR ,1H 1HCOSY ,HMQC ,HMBC及MS波谱分析 ,确定其结构为 (2S ,3S ,4R ,8E) 8,9 二脱氢植物鞘氨醇(2′R) 2′ 羟基脂肪酰胺 ,其中脂肪酸链主要由二十二 ,二十三 ,二十四和二十五烷酸组成 .

A ceramide mixture was isolated from Linaria vulgaris Mill.and identified as (2 S,3S,4R,8E ) 8,9 didehydro phytosphingosine(2′ R ) 2′ hydroxy fatty amides.The fatty acid residues were composed of docosanoic,tricosanoic,tetracosanoic and pentacosanoic acids with a 2 hydroxy group.