title: 7,9-O-ethylidene and 7,9-O-benzylidene derivatives of 5-acetamido-3,5-dideoxy-D-glycero-D-galacto-nonulosonic acid (N-acetylneuraminic acid).
mesh_terms: D005947:Glucose; D006868:Hydrolysis; D009682:Magnetic Resonance Spectroscopy; D009438:Neuraminic Acids / Q000138:chemical synthesis*; D010071:Oxaloacetates
chemical_list: D009438:Neuraminic Acids; D010071:Oxaloacetates; D005947:Glucose