Structural Determination of Three Sphingolipids from Two Marine-derived Mangrove Endophytic Fungal Strains

A set of three sphingolipids, N-2'-hydroxypalmitoyl-1-O-β-D-glucopyrariosyl-9-methyl-4E, 8E-sphingadiene (A), N-2'-hydroxyl-3'E-octadecenoyl-1-O-β-D-glucopyranosyl-9-methyl-4E, 8E- sphingadiene (B) and N-palmitoyldihydrosphingosine (C), were isolated from two marine-derived mangrove endophytic fungal strains (strains No. 1924 and 3893) from the South China Sea. Their structures were elucidated by 2D NMR and FABMS methods. It is the first time that these sphingolipids were separated and obtained from marine-derived mangrove endophytic fungus from the South China Sea.