Synthesis and Biological Evaluation of Allosteric A1-Adenosine Receptor Modulators Structurally Related to (2-Amino-4,5,6,7-Tetrahydro-Benzo[B]Thiophen-3-YL)-(4-Chloro-Phenyl)-Methanone, a Potent Compound Useful to Reduce Neuropathic Pain
摘要:
New derivatives of (2-amino-4,5,6,7-tetrahydrobenzo[b]thiophen-3-yl)-(4-chlorophenyl)methanone (compound 1), an allosteric enhancer of agonist binding to the A(1)-adenosine receptor, have been synthesized and evaluated in an intact cell assay at different concentrations to determine which among them were potential allosteric enhancers of the action of adenosine to activate the human-A(1)adenosine receptor. None of the synthesized compounds appear to be more potent than 1 at a concentration of 10 mu M. Most of the compounds increase the cAMP content of CHO cells expressing the human A(1)-adenosine receptor, indicating an antagonist activity. Only two of the evaluated compounds (2 and 8) appeared to be allosteric enhancers at high concentration (10 mu M).
Synthesis and Biological Evaluation of Allosteric A1-Adenosine Receptor Modulators Structurally Related to (2-Amino-4,5,6,7-Tetrahydro-Benzo[B]Thiophen-3-YL)-(4-Chloro-Phenyl)-Methanone, a Potent Compound Useful to Reduce Neuropathic Pain
摘要:
New derivatives of (2-amino-4,5,6,7-tetrahydrobenzo[b]thiophen-3-yl)-(4-chlorophenyl)methanone (compound 1), an allosteric enhancer of agonist binding to the A(1)-adenosine receptor, have been synthesized and evaluated in an intact cell assay at different concentrations to determine which among them were potential allosteric enhancers of the action of adenosine to activate the human-A(1)adenosine receptor. None of the synthesized compounds appear to be more potent than 1 at a concentration of 10 mu M. Most of the compounds increase the cAMP content of CHO cells expressing the human A(1)-adenosine receptor, indicating an antagonist activity. Only two of the evaluated compounds (2 and 8) appeared to be allosteric enhancers at high concentration (10 mu M).
The present invention relates to compounds of formulas (IA) and (IB):
1
the preparation thereof, pharmaceutical formulations thereof, and their use in medicine as allosteric adenosine receptor modulators for uses including protection against hypoxia and ischemia induced injury and treatment of adenosine-sensitive cardiac arrhythmias.