d-Evalose (1: 6-deoxy-3-C-methyl-d-mannose) was synthesized from methyl 3, 3′-anhydro-4, 6-O-benzylidene-3-C-hydroxymethyl-2-O-methyl-α-d-mannopyranoside (3) through five-step derivations, and the structure was confirmed by the conversion into d-nogaloside (8: methyl 6-deoxy-3-C-methyl-2,3,4-tri-O-methyl-α-d-mannopyranoside).