title: Synthesis, crystal structure and molecular conformation of Nalpha-Boc-L-leucyl-(Z)-beta-(3-pyridyl)-alpha,beta- dehydroalanyl-L-leucine methyl ester.
abstract: A protected tridehydropeptide containing (Z)-beta-(3-pyridyl)-alpha,beta-dehydroalanine (Delta(Z)3Pal) residue, Boc-Leu-Delta(Z)3Pal-Leu-OMe (1), was synthesized via Erlenmeyer azlactone method. X-ray crystallographic analysis revealed that the peptide 1 adopts an extended conformation, which is similar to that of a Delta(Z)Phe analog, Boc-Leu-Delta(Z)Phe-Leu-OMe (2).
authors.affiliation: Department of Chemistry, Gunma University, Tenjin-cho, Kiryu, Gunma, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Yamada
authors.forename: H
authors.initials: H
authors.lastname: Oku
authors.forename: S-S
authors.initials: SS
authors.lastname: Shinoda
authors.forename: R
authors.initials: R
authors.lastname: Katakai
mesh_terms: D018360:Crystallography, X-Ray; D008968:Molecular Conformation; D009842:Oligopeptides / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: C502310:Nalpha-Boc-L-leucyl-(Z)-beta-(3-pyridyl)-alpha,beta- dehydroalanyl-L-leucine methyl ester; D009842:Oligopeptides