C-C Coupling through Nitrogen Deletion: Application to Library Synthesis

Chemistry. 2023 Jan 18;29(4):e202203470. doi: 10.1002/chem.202203470. Epub 2022 Dec 21.

Abstract

A protocol for parallel C(sp3 )-C(sp3 ) coupling of (hetero)aromatic aldehydes and (hetero)arylmethyl amines based on a reductive amination - "nitrogen deletion" reaction sequence has been developed. After preliminary validation experiments, an illustrative compound library of 25 members was prepared with 76 % synthetic efficiency. The estimated chemical space accessible by the proposed approach covers almost 600 000 representatives that are scarcely represented in current compound databases.

Keywords: combinatorial chemistry; heterocycles; lead-likeness; parallel synthesis; skeletal editing.