title: Synthesis of bis-peptides attached on poly[n]norbornene molecular scaffolds with well-defined relative positions and distances.
abstract: This article describes novel synthetic approaches to polynorbornene molecular scaffolds substituted with peptides at various, well-defined positions. A library of norbornene building blocks with attached peptides was prepared. Alkene cyclobutane epoxide (ACE) coupling method was used as a key step reaction for the connection of two norbornene building blocks into bis-peptide scaffolds. Photodimerization of cyclobutene diesters offers an alternative route to polynorbornene bis-peptides. Pyrrolo-peptides were used for preparation of peptide-substituted 7-aza norbornenes. Asymmetrical bis-peptide scaffolds were prepared by ACE coupling of peptide-norbornane epoxide with another norbornene-peptide block. Chemical elaboration of bridgehead dimethyl esters of ACE products or epoxide ACE reagents was also used for peptide attachment.
authors.affiliation: Centre for Molecular Architecture, Central Queensland University, Rockhampton, QLD, 4702, Australia.
authors.forename: Muhong
authors.initials: M
authors.lastname: Shang
authors.forename: Ronald N
authors.initials: RN
authors.lastname: Warrener
authors.forename: Douglas N
authors.initials: DN
authors.lastname: Butler
authors.forename: Yasujiro
authors.initials: Y
authors.lastname: Murata
authors.forename: Davor
authors.initials: D
authors.lastname: Margetić
mesh_terms: D008958:Models, Molecular; D009636:Norbornanes / Q000737:chemistry*; D010455:Peptides / Q000138:chemical synthesis* / Q000737:chemistry*; D057786:Peptidomimetics
chemical_list: D009636:Norbornanes; D010455:Peptides; D057786:Peptidomimetics