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Glycoconjugate synthesis using chemoselective ligation.

Shuihong Cheng1, Paeton L Wantuch, Megan E Kizer

  • 1CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, Chaoyang, China.

Organic & Biomolecular Chemistry
|February 20, 2019
PubMed
Summary
This summary is machine-generated.

Chemoselective ligation efficiently attaches carbohydrates to peptides using adipic acid dihydrazide. This method produces homogeneous glycoconjugates in high yield and regioselectivity.

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Area of Science:

  • Bioconjugation Chemistry
  • Glycochemistry
  • Peptide Chemistry

Background:

  • Glycoconjugates are vital in biological processes.
  • Producing homogeneous glycoconjugates is challenging.
  • Existing methods lack efficiency and selectivity.

Purpose of the Study:

  • To develop a novel chemoselective ligation method for carbohydrates and polypeptides.
  • To enable the efficient synthesis of homogeneous glycoconjugates.
  • To utilize adipic acid dihydrazide as a cross-linker.

Main Methods:

  • Two-step ligation strategy.
  • Utilizing the reducing end of carbohydrates.
  • Employing adipic acid dihydrazide as a cross-linker.

Main Results:

  • High yield of glycoconjugate formation.
  • High regioselectivity achieved in the ligation.
  • Successful production of homogeneous glycoconjugates.

Conclusions:

  • The developed method provides an efficient route to homogeneous glycoconjugates.
  • This strategy is valuable for synthesizing well-defined carbohydrate-peptide conjugates.
  • Adipic acid dihydrazide is an effective cross-linker for this application.