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Hierarchical and Programmable One-Pot Oligosaccharide Synthesis
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Hierarchical and Programmable One-Pot Oligosaccharide Synthesis.

Cheng-Wei Cheng1, Yixuan Zhou1, Wen-Harn Pan2

  • 1Genomics Research Center, Academia Sinica.

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This study introduces a method for rapid, large-scale oligosaccharide synthesis using a one-pot approach and Auto-CHO software. This enables efficient synthesis of complex molecules like the SSEA-4 stem cell marker.

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Area of Science:

  • Carbohydrate Chemistry
  • Synthetic Biology
  • Computational Chemistry

Background:

  • Oligosaccharide synthesis is crucial for understanding biological processes.
  • Current methods can be time-consuming and yield limited amounts.
  • Automated solutions are needed to accelerate discovery.

Purpose of the Study:

  • To present a general experimental protocol for programmable one-pot oligosaccharide synthesis.
  • To demonstrate the utility of Auto-CHO software for designing synthetic routes.
  • To enable fast, large-scale synthesis of oligosaccharides.

Main Methods:

  • Utilized thioglycoside building blocks (BBLs) with defined relative reactivity values (RRVs).
  • Employed Auto-CHO software, incorporating a BBL library and support vector regression for RRV prediction.
  • Implemented a hierarchical one-pot synthesis algorithm within Auto-CHO.

Main Results:

  • Developed a programmable one-pot synthesis protocol.
  • Auto-CHO software successfully identified synthetic solutions from a library of validated and virtual BBLs.
  • Demonstrated successful one-pot synthesis of stage-specific embryonic antigen 4 (SSEA-4).

Conclusions:

  • The presented protocol and Auto-CHO software facilitate efficient and scalable oligosaccharide synthesis.
  • This approach accelerates the production of complex carbohydrate structures, including important biomarkers.
  • Auto-CHO's feedback mechanism allows for continuous improvement of the BBL library.