Carbohydrates as Multifunctional Chiral Scaffolds in Combinatorial Synthesis.

Area of Science:

• Carbohydrate Chemistry
• Organic Synthesis
• Polymer Chemistry

Background:

• Carbohydrates are versatile chiral building blocks.
• Solid-phase synthesis requires stable protecting groups and anchors for combinatorial approaches.
• Achieving high molecular diversity is a key goal in synthetic chemistry.

Purpose of the Study:

• To develop a method for utilizing carbohydrates as chiral scaffolds in combinatorial solid-phase synthesis.
• To identify and implement orthogonally stable protecting groups and a selectively cleavable anchor compatible with basic conditions.

Main Methods:

• Development of a synthetic strategy employing four orthogonally stable protecting groups (SG) on a carbohydrate scaffold.
• Attachment of a selectively cleavable anchor (A) to the carbohydrate scaffold, enabling linkage to a polymer carrier (P).
• Sequential selective deprotection, functionalization, and solid-phase washing, followed by anchor cleavage for combinatorial synthesis.

Main Results:

• Demonstrated the stability of the protecting groups and anchor under basic conditions.
• Successfully utilized the carbohydrate scaffold in a combinatorial solid-phase synthesis workflow.
• Enabled the generation of diverse molecular structures from a single carbohydrate template.

Conclusions:

• The developed method provides a robust platform for employing carbohydrates as chiral polyfunctional scaffolds.
• This approach facilitates high-diversity combinatorial synthesis, expanding the utility of carbohydrates in drug discovery and materials science.