Versatile, Modular, and General Strategy for the Synthesis of α-Amino Carbonyls

Area of Science:

• Organic Chemistry
• Medicinal Chemistry
• Synthetic Chemistry

Background:

• Modulating alkylamine basicity is key in pharmaceutical development.
• Alkylamines with proximal amide, ester, or ketone groups are prevalent in drug candidates.
• Efficient synthesis of α-amino carbonyls remains a synthetic challenge.

Purpose of the Study:

• To present a practical, modular, and programmable strategy for synthesizing diverse α-amino carbonyls.
• To address the synthetic challenges associated with preparing privileged pharmaceutical scaffolds.
• To enable the construction of novel α-amino amide libraries for drug discovery.

Main Methods:

• A novel method for generating carbamoyl radicals under mild conditions.
• Utilizing Lewis acid- and visible-light-mediated Norrish type-I fragmentation of carboxamides.
• Intercepting carbamoyl radicals via addition to in situ generated imines.

Main Results:

• Demonstrated a broad scope for both imine and carboxamide components.
• Showcased the generation of a library of novel, assay-ready α-amino amides.
• Successfully synthesized a wide range of α-amino carbonyl compounds.

Conclusions:

• The developed method offers a versatile and efficient approach to α-amino carbonyl synthesis.
• This strategy facilitates access to diverse chemical structures relevant to drug design.
• The modularity allows for rapid library generation, accelerating drug discovery efforts.