P-D-Glucuronic acid

Circled group is replaced by —COO- in the anion of P-D-glucuronic acid (GlcA), a component of many mucopolysaccharides... 

Figure 2.3. Boat and chair forms of P-D-glucuronic acid, (a) Cj chair conformation (left) and planar projection (right) (b) Boat conformation and (c) 1C chair conformation of P-D-glucuronic acid.The latter two conformations are energetically less stable than the Ci chair conformation.

Preparation of l-0-[4-[fra s-(3R,4S)-l-(4-fluorophenyl)-2-oxo-3-[3-(S)-(hydroxy-4-fluorophenyl)propyl]]-4-azetidinyl]phenyl]-p-D-glucuronic acid... 

The main xanthan chain consists ofp-D-(l— 4) glucose units that also occur in cellulose. Side chains (usually trisaccharides) consist of a D-glucuronic acid residue and two D-mannose residues (4-180). To the terminal D-mannose unit of the side chain is attached to P-d-glucuronic acid through - (1 4) glycosidic bond. Glucuronic acid is further linked to a-D-mannose by a (1— 2) bond. The structure is further complicated by the presence of pyruvic add linked, as an... 

Ethyl-2,4-hexadienoate, 2,5-Af-P-D-Acetylglucosamine, 1,4- (chitin) tert-Butylmethacrylate 2,3,4-trimethoxy-5-hydroxyvaleric acid 2,5-Dimethylterephthalaldehyde lsobutyl-2,4-hexadienoate, 2,5-p-D-Galactosamine-a/t-l,4-P-D-glucuronic acid, 1,3-P D-Glucosamine-a/t-1, 4-p-D-glucuronic acid, 1,3-... 

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