Toward the Chemoenzymatic Synthesis of DNA-Encoded Libraries.

Area of Science:

• Medicinal Chemistry
• Biotechnology
• Organic Synthesis

Background:

• DNA-encoded libraries (DELs) are crucial in drug discovery, linking small molecules to DNA tags for binder identification.
• Current DEL synthesis is limited by DNA tag stability and reaction efficiency, restricting chemical diversity.
• Developing DNA-compatible reactions is essential for expanding the DEL chemical space.

Purpose of the Study:

• To explore the potential of enzymatic catalysis for on-DNA synthesis.
• To address the limitations of traditional chemical synthesis in DEL platforms.
• To expand the accessible chemical space within DNA-encoded libraries.

Main Methods:

• Highlighting enzymatic catalysis as a method for on-DNA synthesis.
• Discussing the advantages of enzymes in performing reactions compatible with DNA tags.
• Reviewing strategies for integrating enzymatic reactions into DEL workflows.

Main Results:

• Enzymatic catalysis offers high selectivity and efficiency under mild, DNA-compatible conditions.
• Enzymes can facilitate complex chemical transformations directly on DNA-linked molecules.
• This approach minimizes side products and unreacted materials, improving hit identification.

Conclusions:

• Enzymatic catalysis is a powerful strategy for expanding DEL chemical space.
• On-DNA enzymatic synthesis overcomes key limitations of traditional DEL chemistry.
• This technology holds significant promise for accelerating drug discovery efforts.