Baiyang Mu, Yiwei Zhang, Xudong Wang, Rui Jin, Weiwei Lu, Nidhal Selmi, Sixiu Liu, Avinash Bhat, Sara Pahlén, Giulia Bergonzini, Zhiqiang Duan, Yinan Song, Xiaojie Lu

Bioconjugate Chemistry

DOI: 10.1021/acs.bioconjchem.4c00581

Abstract

The C­(sp²)–C­(sp³) cross-coupling reaction is an effective way to increase the C­(sp³) content in compound collections for drug discovery, enhancing molecular diversity and offering a unique chemistry starting point. In this study, we report a mild, DNA-compatible, and off-DNA-inert photochemical cross-coupling reaction inspired by the amino radical transfer strategy. This method demonstrates broad substrate scopes for DNA-encoded library (DEL) constructions, utilizing commonly available structures on DNA and diverse alkyl boronate ester building blocks, which have not been widely applied in the current DEL chemical space.