Chiral Effect of a Phe Residue in Position 3 of the Dmt1-l(or d)-Tic2 Analogues on Opioid Functional Activities
摘要:
In this letter, we describe a structure-activity relationships study, specifically related to the chirality of third amino acid residue in our H-Dmt-L(or D)-Tic analogues, of which C-terminus is attached to a piperidinyl moiety. Observed selectivities and functional activities of these analogues demonstrated that the chiralities of the second and third position residues are crucial for determining whether these ligands act as antagonists or agonists at the delta opioid receptor, but not at the mu opioid receptor.
Understanding the structural requirements of 4-anilidopiperidine analogues for biological activities at μ and δ opioid receptors
摘要:
New 4-anilidopiperidine analogues in which the phenethyl group of fentanyl was replaced by several aromatic ring-contained amino acids (or acids) were synthesized to study the biological effect of the substituents on mu and delta opioid receptor interactions. These analogues showed broad (47 nM-76 mu M) but selective (up to 17-fold) binding affinities at the V opioid receptor over the 6 opioid receptor, as predicted from the message-address concept. (c) 2007 Elsevier Ltd. All rights reserved.
Development of Novel Enkephalin Analogues that Have Enhanced Opioid Activities at Both μ and δ Opioid Receptors
作者:Yeon Sun Lee、Ravil Petrov、Chad K. Park、Shou-wu Ma、Peg Davis、Josephine Lai、Frank Porreca、Ruben Vardanyan、Victor J. Hruby
DOI:10.1021/jm061465o
日期:2007.11.1
Enkephalin analogues with a 4-anilidopiperidine scaffold have been designed and synthesized to achieve therapeutic benefit for the treatment of pain due to mixed mu and delta opioid agonist activities. Ligand 16, in which a Dmt-substituted enkephalin-like structure was linked to the N-phenyl-N-piperidin-4-yl propionamide moiety, showed very high binding affinities (0.4 nM) at mu and delta receptors with an increased hydrophobicity (aLogP = 2.96). This novel lead compound was found to have very potent agonist activities in MVD (1.8 nM) and GPI (8.5 nM) assays.
Development of Potent μ and δ Opioid Agonists with High Lipophilicity
作者:Yeon Sun Lee、Vinod Kulkarani、Scott M. Cowell、Shou-wu Ma、Peg Davis、Katherine E. Hanlon、Todd W. Vanderah、Josephine Lai、Frank Porreca、Ruben Vardanyan、Victor J. Hruby
DOI:10.1021/jm100982d
日期:2011.1.13
An SAR study on the Dmt-substituted enkephalin-like tetrapeptide with a N-phenyl-N-piperidin-4-ylpropionamide moiety at the C-terminal was performed and has resulted in highly potent ligands at mu and delta opioid receptors In general, ligands with the substitution of D-Nle(2) and halogenation of the aromatic ring of Phe(4) showed highly increased opioid activities Ligand 6 with good biological activities in vitro demonstrated potent in vivo antihyperalgesic and antiallodynic effects in the tail-flick assay
Chiral Effect of a Phe Residue in Position 3 of the Dmt<sup>1</sup>-<scp>l</scp>(or <scp>d</scp>)-Tic<sup>2</sup> Analogues on Opioid Functional Activities
作者:Yeon Sun Lee、HongChang Qu、Peg Davis、Shou-Wu Ma、Ruben Vardanyan、Josephine Lai、Frank Porreca、Victor J. Hruby
DOI:10.1021/ml400115n
日期:2013.7.11
In this letter, we describe a structure-activity relationships study, specifically related to the chirality of third amino acid residue in our H-Dmt-L(or D)-Tic analogues, of which C-terminus is attached to a piperidinyl moiety. Observed selectivities and functional activities of these analogues demonstrated that the chiralities of the second and third position residues are crucial for determining whether these ligands act as antagonists or agonists at the delta opioid receptor, but not at the mu opioid receptor.
Understanding the structural requirements of 4-anilidopiperidine analogues for biological activities at μ and δ opioid receptors
作者:Yeon Sun Lee、Joel Nyberg、Sharif Moye、Richard S. Agnes、Peg Davis、Shou-wu Ma、Josephine Lai、Frank Porreca、Ruben Vardanyan、Victor J. Hruby
DOI:10.1016/j.bmcl.2007.01.114
日期:2007.4
New 4-anilidopiperidine analogues in which the phenethyl group of fentanyl was replaced by several aromatic ring-contained amino acids (or acids) were synthesized to study the biological effect of the substituents on mu and delta opioid receptor interactions. These analogues showed broad (47 nM-76 mu M) but selective (up to 17-fold) binding affinities at the V opioid receptor over the 6 opioid receptor, as predicted from the message-address concept. (c) 2007 Elsevier Ltd. All rights reserved.