Will combinatorial chemistry deliver real medicines?

Area of Science:

• Medicinal Chemistry
• Drug Discovery
• Chemical Biology

Background:

• Library synthesis is crucial for accelerating the lead optimization phase in drug discovery.
• Combinatorial chemistry offers vast potential for exploring chemical space and identifying novel therapeutic agents.
• Despite advancements, discovering new molecular structures for challenging biological targets remains a significant hurdle.

Purpose of the Study:

• To evaluate the role and limitations of library synthesis and combinatorial chemistry in modern drug discovery.
• To assess the effectiveness of these technologies against different classes of biological targets.
• To provide a realistic outlook on the impact of these methods in the next decade.

Main Methods:

• Review of current trends in library synthesis and combinatorial chemistry.
• Analysis of high-throughput screening data for synthetic compounds and natural products.
• Discussion of target-specific challenges in small molecule drug discovery.

Main Results:

• Library synthesis is expected to significantly shorten lead optimization timelines.
• Combinatorial chemistry's success is more certain for well-established targets like GPCRs, ion channels, and proteases.
• Novel structure discovery for complex targets, such as protein-protein interactions, remains challenging despite increased screening efforts.

Conclusions:

• Combinatorial chemistry is a valuable tool for accelerating drug discovery, particularly for tractable targets.
• Further innovation is needed to enhance the discovery of novel chemical entities for complex biological targets.
• The strategic application of library synthesis and combinatorial chemistry will be key to future drug development successes.