Total Synthesis of a Structurally Complex Tetrasaccharide Repeating Unit of <i>Vibrio cholerae</i> O43
作者:Ankita Paul、Diksha Rai、Kabita Pradhan、Preeti Balhara、Amar Kumar Mishra、Suvarn S. Kulkarni
DOI:10.1021/acs.orglett.3c02430
日期:2023.9.1
Herein we report the first total synthesis of a densely functionalized tetrasaccharide repeatingunit of Vibrio cholerae O43, which contains rare deoxy amino sugars d-quinovosamine and d-viosamine attached with the rare amino acid N-acetyl-l-allothreonine. Synthesis of orthogonally protected rare sugars and unnatural amino acid building blocks, stereoselective construction of three consecutive 1,2-cis