The present invention aims to provide a novel type I natural ceramide derivative having a structure more similar to that of a type I natural ceramide composed of sphingosine and an ω-acyloxy long-chain carboxylic acid; and a method for producing the same. The derivative is provided by reacting an ω-acyloxy long-chain fatty acid derivative with dihydrosphingosine or a salt thereof. The thus produced novel type I natural ceramide derivative, when combined with other ceramides, can significantly improve the compatibility of ceramides, which facilitates preparation of a composition containing ceramides, such as a moisturizer or a cosmetic, and also increases the storage stability of the composition.
本发明旨在提供一种新型 I 型天然神经酰胺衍
生物,其结构与由
鞘氨醇和 ω-acyloxy 长链
羧酸组成的 I 型天然神经酰胺的结构更为相似;以及生产该衍
生物的方法。该衍
生物是通过ω-乙酰氧基长链
脂肪酸衍
生物与二氢鞘
磷脂或其盐反应而得到的。由此制得的新型 I 型天然神经酰胺衍
生物与其他神经酰胺结合使用时,可显著提高神经酰胺的相容性,从而有助于制备含有神经酰胺的组合物,如保湿剂或化妆品,还能提高组合物的储存稳定性。