First Total Synthesis of Caminoside A, an Antimicrobial Glycolipid from Sponge

Caminoside A, a novel antimicrobial tetrasaccharide ­glycolipid from the marine sponge Caminus sphaeroconia, which represents the first bacterial type III secretion inhibitor, is syn­thesized in a total of 57 steps starting from d-glucose, d-galactose, l-rhamnose, and 9-decenal.