Issue 1, 2018

Cyclic azole-homologated peptides from Marine sponges

Abstract

This review discusses the chemistry of cyclic azole-homologated peptides (AHPs) from the marine sponges, Theonella swinhoei, other Theonella species, Calyx spp. and Plakina jamaicensis. The origin, distribution of AHPs and molecular structure elucidations of AHPs are described followed by their biosynthesis, bioactivity, and synthetic efforts towards their total synthesis. Reports of partial and total synthesis of AHPs extend beyond peptide coupling reactions and include creative construction of the non-proteinogenic amino acid components, mainly the homologated heteroaromatic and α-keto-β-amino acids. A useful conclusion is drawn regarding AHPs: despite their rarity, exotic structures and the potent protease inhibitory properties of some members, their synthesis is under-developed and beckons solutions for outstanding problems towards their efficient assembly.

Graphical abstract: Cyclic azole-homologated peptides from Marine sponges

Article information

Article type
Review Article
Submitted
25 Oct 2017
Accepted
28 Nov 2017
First published
28 Nov 2017

Org. Biomol. Chem., 2018,16, 21-29

Cyclic azole-homologated peptides from Marine sponges

T. F. Molinski, Org. Biomol. Chem., 2018, 16, 21 DOI: 10.1039/C7OB02628E

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