Pseudopeptide CCK-4 analogues incorporating the Ψ[CH(CN)NH] peptide bond surrogate
作者:Susana Herrero、M.Luisa Suárez-Gea、Rosario González-Muñiz、M.Teresa García-López、Rosario Herranz、Santiago Ballaz、Ana Barber、Ana Fortuño、Joaquín Del Río
DOI:10.1016/s0960-894x(97)00107-8
日期:1997.1
The synthesis, binding to CCK receptors, and in vitro functional activity of pseudopeptide CCK-4 analogues incorporating the (R) or (S) Psi[CH(CN)NH] peptide bond surrogate at the Nle(31)-Asp(32) or Trp(30)-Nle(31) bonds are described. Z-Trp Psi[(S)CH(CN)NH]Nle-Asp-Phe-NH2 retained the high CCK-B receptor binding affinity of Boc-[Nle(31)]-CCK-4, and was a potent and selective CCK-B antagonist in the isolated guinea pig ileum. (C) 1997 Elsevier Science Ltd.