Total Synthesis of an All-1,2-cis-Linked Repeating Unit from the Acinetobacter baumannii D78 Capsular Polysaccharide

Chemical synthetic efforts have resulted in the preparation of the assigned tetrasaccharide repeating subunit from the Acinetobacter baumannii KL4-associated capsular polysaccharide. A convergent synthetic strategy hinging on a 1,2-cis-selective [2+2] glycosylation to generate the fully protected tetrasaccharide was key to the success of this synthesis.

Automated summary

The assigned tetrasaccharide repeating subunit from the Acinetobacter baumannii KL4-associated capsular polysaccharide has been successfully synthesized through chemical synthetic efforts. A convergent synthetic strategy based on a 1,2-cis-selective [2+2] glycosylation was crucial for the synthesis of the fully protected tetrasaccharide.