Chemical modifications of 1→4-2-amino-2-deoxy-α-d-galactan

Autor: Betty Matsuhiro, Luis E. Lillo
Rok vydání: 2003
Předmět:
Zdroj: Carbohydrate Polymers. 51:317-325
ISSN: 0144-8617
DOI: 10.1016/s0144-8617(02)00188-1
Popis: Oxidation of 1→4-2-amino-2-deoxy-α- d -galactan (poly-α- d -galactosamine) with nitrogen oxides allowed the formation of a carboxyl group at the C-6 position. The carboxylated polysaccharide by acetylation afforded a derivative similar to the antigenic Vi polysaccharide of Salmonella typhi. The reaction of the modified poly-α- d -galactosamine with caprolactam assisted by carbodiimide introduced at the C-6 position a secondary amide function with a new terminal acidic group. The caproic acid residue was used as a linker for the conjugation of the modified poly-α- d -galactosamine with tetanus toxoid and with bovine serum albumin.
Databáze: OpenAIRE