Ceramides from the Roots of Serratula chinensis
华麻花头根中的神经酰胺成分

A mixture of five ceramides was isolated from the roots of Serratula chinensis (Compositae). The structures of these compounds were elucidated as (2S, 3S, 4R, 8E)-2-amino-8-octadecene-1, 3, 4-triol with five 2-hydroxy fatty acids of varying chain lengths (C16, C22-25) linked to the amino group (1a-1e, respectively).Ceramide 1a was a new compound. The structures were established by spectroscopic and chemical means. The KMnO4 oxidation method was applied to locate the double bond position in monounsaturated long chain bases.