Accelerated Synthesis of Bicyclo[1.1.1]pentylamines: A High-Throughput Approach.

Area of Science:

• Medicinal Chemistry
• Organic Synthesis
• Drug Discovery

Background:

• Strained bicyclic structures like bicyclo[1.1.1]pentylamines (BCPAs) are valuable arylamine bioisosteres in drug design.
• Expanding access to diverse BCPA scaffolds is crucial for medicinal chemistry programs.

Purpose of the Study:

• To develop rapid, library-amenable reaction conditions for synthesizing bicyclo[1.1.1]pentylamines.
• To maximize the chemical design space accessible through automated synthesis.

Main Methods:

• Leveraged high-throughput automated synthesis for reaction optimization.
• Employed a copper-mediated C-N coupling reaction.
• Utilized accessible and bench-stable iodo-bicyclo[1.1.1]pentane building blocks.

Main Results:

• Established robust and scalable reaction conditions for BCPA synthesis.
• Demonstrated the incorporation of bicyclo[1.1.1]pentyl groups into drug-like molecules.
• Generated a library of valuable aniline-like isosteres.

Conclusions:

• The developed protocol significantly expands access to bicyclo[1.1.1]pentylamines for medicinal chemistry.
• Automated synthesis provides an efficient route to novel BCPA-containing compounds.
• This approach facilitates the exploration of new chemical space for drug discovery.