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Streamlined construction of peptide macrocycles via palladium-catalyzed intramolecular S-arylation in solution and on DNA.

ABSTRACT: A highly efficient and versatile method for construction of peptide macrocycles via palladium-catalyzed intramolecular S-arylation of alkyl and aryl thiols with aryl iodides under mild conditions is developed. The method exhibits a broad substrate scope for thiols, aryl iodides and amino acid units. Peptide macrocycles of a wide range of size and composition can be readily assembled in high yield from various easily accessible building blocks. This method has been successfully employed to prepare an 8-million-membered tetrameric cyclic peptide DNA-encoded library (DEL). Preliminary screening of the DEL library against protein p300 identified compounds with single digit micromolar inhibition activity.

SUBMITTER: Yang P

PROVIDER: S-EPMC8179660 | biostudies-literature |

REPOSITORIES: biostudies-literature

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