DNA-Compatible Synthesis of Pyrrolidine-Fused Scaffolds via a One-Pot Three-Component Cycloaddition Strategy.

Area of Science:

• Organic Chemistry
• Medicinal Chemistry
• Chemical Biology

Background:

• Pyrrolidines are essential structural motifs in numerous natural products and pharmaceuticals.
• Their unique biological activities make them highly sought after in drug discovery.
• Developing efficient synthetic routes to pyrrolidine-containing compounds is crucial.

Purpose of the Study:

• To establish a robust and DNA-compatible strategy for synthesizing pyrrolidine-fused scaffolds.
• To enable the diversification of these scaffolds for creating chemical libraries.
• To demonstrate the application of this method in synthesizing bioactive compounds and DNA-encoded libraries (DELs).

Main Methods:

• A three-component cycloaddition reaction involving azomethine ylides was employed.
• The synthesis strategy was designed to be compatible with DNA encoding.
• Post-synthesis diversification of the pyrrolidine scaffolds was achieved using various reagents.

Main Results:

• An efficient method for constructing pyrrolidine-fused scaffolds was successfully developed.
• The synthesized scaffolds possess reactive N-termini, allowing for extensive chemical modification.
• The methodology facilitated the on-DNA synthesis of bioactive molecules and the creation of prototype DELs.

Conclusions:

• The described DNA-compatible strategy offers a powerful tool for generating diverse pyrrolidine-based compounds.
• This approach significantly enhances the chemical space accessible for DNA-encoded library construction.
• The method holds promise for accelerating the discovery of novel drug candidates.