Bicyclic cyclohexylamines and their use as nmda receptor antagonists
申请人:——
公开号:US20030236252A1
公开(公告)日:2003-12-25
Described are bicycle-substituted cyclohexylamines of Formula (I) and their pharmaceutically acceptable salts thereof. The compounds are antagonists of NMDA receptor channel complexes useful for treating cerebral vascular disorders such as, for example, cerebral ischemia, cardiac arrest, stroke, and Parkinson's specification. disease. The substituents are defined in the specification.
1
Provided is a novel amine compound represented by the following formula (I) having a superior peripheral blood lymphocyte decreasing action and superior in the immunosuppressive action, rejection suppressive action and the like, which shows decreased side effects of, for example, bradycardia and the like, or a pharmaceutically acceptable acid addition salt thereof, or a hydrate thereof, or a solvate thereof.
wherein each symbol is as defined in the specification.
Cell-Permeable and Plasma-Stable Peptidomimetic Inhibitors of the Postsynaptic Density-95/<i>N</i>-Methyl-<scp>d</scp>-Aspartate Receptor Interaction
作者:Anders Bach、Jonas N. N. Eildal、Nicolai Stuhr-Hansen、Rasmus Deeskamp、Marie Gottschalk、Søren W. Pedersen、Anders S. Kristensen、Kristian Strømgaard
DOI:10.1021/jm1013924
日期:2011.3.10
The protein protein interaction between the NMDA receptor and its intracellular scaffolding protein, PSD-95, is a potential target for treating ischemic brain diseases, neuropathic pain, and Alzheimer's disease. We have previously demonstrated that N-alkylated tetrapeptides are potent inhibitors of this interaction, and here, this template is exploited for the development of blood plasma-stable and cell-permeable inhibitors. Initially, we explored both the amino acid sequence of the tetrapeptide and the nature of the N-alkyl groups, which consolidated N-cyclohexylethyl-ETAV (1) as the most potent and selective compound. Next, the amide moieties of N-methylated ETAV were systematically replaced with thioamides, demonstrating that one of three amide bonds could be :replaced without compromising the affinity. Subsequent optimization of the N-alkyl groups and evaluation of cell permeability led to identification of N-cyclohexylethyl-ETA(s)V (54) as the most potent, plasma-stable and cell-permeable inhibitor, which is a promising tool in unraveling the therapeutic potential of the PSD-95/NMDA receptor interaction.