Unusual acidic monosaccharides as components of O-specific polysaccharides of Vibrio

E. L. Nazarenko, A. S. Shashkov, Yu. A. Knirel, E. P. Ivanovov, Yu. S. Ovodov

Pacific Institute of Bioorganic Chemistry, Far East Division, Academy of Sciences N. D. Zelinsky Institute of Organic Chemistry, Academy of Sciences of the USSR, Moscow

Abstract: On mild acid hydrolysis of O-specific polysaccharides of Vibrio alginolyticus and Vibrio fluvialis two unusual monosaccharides were isolated, viz., 5,7-diacetamido-3,5,7,9-tetradeoxy-D-glycero-L-galacto-nonulosonic acid and 3-O-[(R)-1-hydroxyethyl]-L-rhamnose (rhamnolactilic acid), respectively. Structural elucidation of these sugars was carried Ľout by using 1H and 13C NMR spectroscopy. Rhamnolactilic acid was also identified by comparison with] the authentic sample obtained from the Shigella dysenteriae type 5 O-specific polysaccharide.

Russian Journal of Bioorganic Chemistry 1990, 16 (10):1426-1429

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