title: Peptide transformation leading to peptide-peptidosulfonamide hybrids and oligo peptidosulfonamides.
abstract: The sulfonamide moiety was introduced as a potential transition state isostere of the hydrolysis of the amide bond. Subsequently, the increased acidity of a sulfonamide N-H as compared to a regular amide N-H was explored in the development of peptidosulfonamide synthetic receptor molecules for binding and catalysis. The required building blocks for these compounds were accessible via an efficient synthesis, which also enabled the synthesis of oligopeptidosulfonamides as well as peptidosulfonamide-betapeptide hybrids. The structural consequences of the introduction of the peptidosulfonamide residues were studied and were further explored by the synthesis of cyclic peptidosulfonamides e.g. by ring-closing metathesis.
authors.affiliation: Department of Medicinal Chemistry, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, PO Box 80082, 3508 TB, Utrecht, The Netherlands. r.m.j.liskamp@pharm.uu.nl
authors.forename: Rob M J
authors.initials: RM
authors.lastname: Liskamp
authors.forename: John A W
authors.initials: JA
authors.lastname: Kruijtzer
mesh_terms: D001671:Biochemistry / Q000379:methods; D002384:Catalysis; D010455:Peptides / Q000737:chemistry* / Q000378:metabolism; D013329:Structure-Activity Relationship; D013449:Sulfonamides / Q000737:chemistry* / Q000378:metabolism
chemical_list: D010455:Peptides; D013449:Sulfonamides