反应详情

2′,4′,6′-triiodo-3′,5′-bis(N-methylacetamido)-3,5-dinitrobiphenyl-4-carboxylic acid (14) is coupled with 1,3,4,6-tetra-O-acetyl-D-glucosamine in the presence of 1-[3-(dimethylamino)propyl]-3-ethylcarbodiimide hydrochloride and N-hydrosuccinamide to yield 2,6-dinitro-4-[3′,5′-bis(N-methylacetamido)-2′,4′,6′-triiodophenyl]-benzoyl-1,3,4,6-tetra-O-acetyl-D-glucosamine. The protecting acetyl groups on the glucosamine moiety are removed by treatment with sodium carbonate in methanol to yield 2,6-dinitro-4-[3′,5′-bis(N-methylacetamido)-2′,4′,6′-triiodophenyl]-benzoyl-D-glucosamine (15).