2-Substituted piperazine-derived imidazole carboxamides as potent and selective CCK1R agonists for the treatment of obesity
摘要:
The discovery and structure-activity relationship of 1,2-diarylimidazole piperazine carboxamides bearing polar side chains as potent and selective cholecystokinin 1 receptor (CCK1R) agonists are described. Optimization of this series resulted in the discovery of isopropyl carboxamide 40, a CCK1R agonist with sub-nanomolar functional and binding activity as well as excellent potency in a mouse overnight food intake reduction assay. (C) 2008 Elsevier Ltd. All rights reserved.
2-Substituted piperazine-derived imidazole carboxamides as potent and selective CCK1R agonists for the treatment of obesity
摘要:
The discovery and structure-activity relationship of 1,2-diarylimidazole piperazine carboxamides bearing polar side chains as potent and selective cholecystokinin 1 receptor (CCK1R) agonists are described. Optimization of this series resulted in the discovery of isopropyl carboxamide 40, a CCK1R agonist with sub-nanomolar functional and binding activity as well as excellent potency in a mouse overnight food intake reduction assay. (C) 2008 Elsevier Ltd. All rights reserved.
β-Peptides with improved affinity for hDM2 and hDMX
作者:Elizabeth A. Harker、Douglas S. Daniels、Danielle A. Guarracino、Alanna Schepartz
DOI:10.1016/j.bmc.2009.01.039
日期:2009.3
We previously described a series of 3(14)-helical beta-peptides that bind the hDM2 protein and inhibit its interaction with a p53-derived peptide in vitro. Here we present a detailed characterization of the interaction of these peptides with hDM2 and report two new beta-peptides in which non-natural side chains have been substituted into the hDM2-recognition epitope. These peptides feature both improved affinity and inhibitory potency in fluorescence polarization and ELISA assays. Additionally, one of the new beta-peptides also binds the hDM2- related protein, hDMX, which has been identified as another key therapeutic target for activation of the p53 pathway in tumors. (C) 2009 Elsevier Ltd. All rights reserved.