(2S, 2'R, 3R, 4E, 8E)-N-2'-Hydroxyoctadecanoyl-1-O-(β-D-glucopyranosyl)-9-methyl-4, 8- sphingadienine (Pen III), a cerebroside isolated from Penicillium funiculosum A-1 as the fruiting inducer against Basidiomycete Schizophyllum commune, was synthesized by