Pseudopeptide CCK-4 analogues incorporating the Ψ[CH(CN)NH] peptide bond surrogate
摘要:
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.
Pseudopeptide CCK-4 analogues incorporating the Ψ[CH(CN)NH] peptide bond surrogate
摘要:
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.