Glucopyranuronic acid

Finally D-glucopyranuronic acid (78) was converted into methyl... 

This directly coupled HPLC-NMR method has been used to investigate the acyl migration kinetics of individual isomers of 2-, 3- and 4-fluoro-, and 2- and 3-trifluoromethylbenzoyl-D-glucopyranuronic acid separated from an equilibrium mixture of the (3-1-O-acyl isomer, the a- and [3-2-0-acyl isomers, the... 

M. Bols, Stereoselective synthesis of 1-O-pivaloyl-jS-D-glucopyranuronic acid, J. Org. Chem., 56 (1991) 5943-5945. 

Whereas mannuronic and galacturonic acids exist in both a- and /3-d-pyranoid forms, glucuronic acid is only found in the /3-d form. Glucuronic and mannuronic acids form crystallizable lactones, but that of galacturonic acid has not yet been crystallized. On isolation, D-glucuronic acid appears as needle-like crystals of /3-D-glucopyranuronic acid (I), which is... 

D-Glucopyranuronic acid Silver jS-D-glucopyranuronate Sodium d-D-glueopyranuronate, monohydrate Cinchonine /S-n-glucopyranuronate... 

D-Glucopyranuronic acid, 2,4-dinitrophenylhydrazone Brucine 0-D-glucopyranuronate 1-phosphate Benzylamine d-n-glucopyranuronate 1-phosphate Methyl tetra-O-acetyl-a-D-glucopyranuronate Methyl tetra-O-acetyl-d-D-glucopyranuronate... 

Preparation of 2,3,4-tri-0-acetyl-l-0-[4-[ /- Hs-(3R,4.S )-3-[3-(.S )-acetyloxy-3-(4-fluorophenyl)propyl]-l-(4-fluorophenyl)-2-oxo-4-azetidinyl]phenyl]-p-D-glucopyranuronic acid methyl ester... 

Access to the unprotected, 1-esterified D-glucopyranuronic acids was provided251 by way of synthesis of the perbenzylated 1-O-acyl derivatives (78), followed by catalytic debenzylation. Thus, reaction of the benzylated intermediate 13 (having OH-1 free) with aliphatic acids in the presence of DGC, or with aroyl chlorides in pyridine, led... 

Bugianesi and Shen38 accomplished the synthesis of 1-O-indometh-acin-/3-D-glucopyranuronic acid (85), a major urinary metabolite235 of the anti-inflammatory drug indomethacin, by using 18 as the sugar component. Thus, DCC condensation of 18 and indomethacin in tetra-hydrofuran at room temperature, followed by treatment of the product (50% yield) with zinc dust in acetic acid, afforded the zinc salt of 85 its structure was confirmed by conversion into 86, identical by i.r. and H-n.m.r. spectra with an authentic specimen.263... 

Immobilization of 2,3,4-Tri-O-Acetyl-l-Azido-l-Deoxy-/3-D-Glucopyranuronic Acid onto MBHA Resin (13)... 

Fiigedi, P, Synthesis of 4-0-(a-L-rhamnopyranosyl)-D-glucopyranuronic acid, J. Carbohydr. Chem., 6, 377-398, 1987. 

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