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Elucidation of the function of glycolipids in natural products is very important because ecology of animals containing them is not only understood, but also their compounds will lead to development of new drugs. This research tried to synthesis of new glycosphingolipids (1, 2, and 3) that were isolated from Hirsutella rhossiliensis. They have neogala-series, β-D-Galp(1→6)-β-D-Galp(1→6)-β-D-Galp, as core structure. Compound 1 contains also in Neurospora crassa, we already reported about synthesis of it. We attempted to synthesize of compounds 2 and 3.

When oligosaccharides are built by coupling of sugars, stereoselectivity of glycosidic bonds is important for the effective synthesis of the target compound. Stereoselectivity of glycosylation depend on neighbouring group, solvents, and temperature. We tried to synthesize a glycosphingolipid from Neurospora crassa.