Volume 59, Issue 12 pp. 4835-4839
Communication

Synthesis of Biaryl-Bridged Cyclic Peptides via Catalytic Oxidative Cross-Coupling Reactions

Mor Ben-Lulu

Mor Ben-Lulu

Department of Chemistry, Ben-Gurion University of the Negev, Beer Sheva, 84105 Israel

These authors contributed equally to this work.

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Eden Gaster

Eden Gaster

Department of Chemistry, Ben-Gurion University of the Negev, Beer Sheva, 84105 Israel

These authors contributed equally to this work.

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Anna Libman

Anna Libman

Department of Chemistry, Ben-Gurion University of the Negev, Beer Sheva, 84105 Israel

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Prof. Dr. Doron Pappo

Corresponding Author

Prof. Dr. Doron Pappo

Department of Chemistry, Ben-Gurion University of the Negev, Beer Sheva, 84105 Israel

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First published: 04 December 2019
Citations: 32

Graphical Abstract

An activating-group-assisted oxidative cross-coupling strategy for the assembly of biaryl-bridged cyclic peptides from natural amino acids was developed for the synthesis of arylomycin/G0775 and RP 66453 cyclic cores.

Abstract

Biaryl-bridged cyclic peptides comprise an intriguing class of structurally diverse natural products with significant biological activity. Especially noteworthy are the antibiotics arylomycin and its synthetic analogue G0775, which exhibits potent activity against Gram-negative bacteria. Herein, we present a simple, flexible, and reliable strategy based on activating-group-assisted catalytic oxidative coupling for assembling biaryl-bridged cyclic peptides from natural amino acids. The synthetic approach was utilized for preparing a number of natural and unnatural biaryl-bridged cyclic peptides, including arylomycin/G0775 and RP 66453 cyclic cores.

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