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D78 荚膜多糖全-1,2--连接重复单元的全合成。

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

机构信息

Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton Rouge, Louisiana 70806, United States.

出版信息

Org Lett. 2022 May 20;24(19):3461-3465. doi: 10.1021/acs.orglett.2c01034. Epub 2022 May 6.

DOI:10.1021/acs.orglett.2c01034
PMID:35522755
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9127968/
Abstract

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

摘要

化学合成工作已经成功制备了 KL4 相关荚膜多糖的指定四糖重复亚单位。一个关键的合成策略是基于 1,2-选择性[2+2]糖苷化来生成完全保护的四糖,这是该合成成功的关键。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/01b3/9127968/252598da6a7d/ol2c01034_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/01b3/9127968/3693b2506362/ol2c01034_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/01b3/9127968/94e47c84585d/ol2c01034_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/01b3/9127968/699e1f09cb3d/ol2c01034_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/01b3/9127968/a60bac0dd2e3/ol2c01034_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/01b3/9127968/252598da6a7d/ol2c01034_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/01b3/9127968/3693b2506362/ol2c01034_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/01b3/9127968/94e47c84585d/ol2c01034_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/01b3/9127968/699e1f09cb3d/ol2c01034_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/01b3/9127968/a60bac0dd2e3/ol2c01034_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/01b3/9127968/252598da6a7d/ol2c01034_0005.jpg

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