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Uronic acid azides

Uronic acid azides constitute important precursors for A -glycosyl amino acids and their various peptide derivatives, and may be formed by a comparable pathway. Thus, the treatment of acetyl-protected uronic acid esters with tri-methylsilyl azide and SnCU gives the desired acetylated 1,2-trans methyl (o-glycopyranosyl azide)uronates in crystalline form. " Whereas the yields for the gluco 61 and galacto derivatives 62 are satisfactory, the manno analog 63 was obtained in only 11 % yield. Even with an excess of trimethylsilyl azide, the results could not be improved. ... [Pg.114]

I-Deoxygalactopyranosyl azide uronic acid. (Galactopyranosyl axide)uronate... [Pg.510]

Deoxygalactopyranosyl azide uronic acid, G-175 6-Deoxygalactopyranosyl azide, F-94... [Pg.1027]

Deoxygluconic acid, D-I87 l-Deoxyglucopyranosyl azide uronic acid, G-468 6-Deoxyglucopyranosyl bromide, D-129... [Pg.1027]

Deoxymannopyranosyl azide uronic acid, M-110 6-Deoxymannopyranosyl fluoride, R-12... [Pg.1029]

By this method in HMPA, a 1,2-cis azidouronic acid derivative was prepared. The yield of methyl (2,3,4-tri-O-acetyl-a-D-glucopyranosyl azide)uron-ate (196) was 56% starting with the (3-chloride 195, and its further transformation into the corresponding acid 197 was also described. ... [Pg.134]

See other pages where Uronic acid azides is mentioned: [Pg.98]    [Pg.62]    [Pg.189]    [Pg.140]    [Pg.156]    [Pg.567]    [Pg.1055]    [Pg.236]    [Pg.572]    [Pg.579]    [Pg.18]    [Pg.703]    [Pg.921]    [Pg.691]   
See also in sourсe #XX -- [ Pg.114 ]



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2- uronate

Acid azide

Uronates

Urones

Uronic

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