Synthesis and biological evaluation of 2-aminothiazoles and their amide derivatives on human adenosine receptors. Lack of effect of 2-aminothiazoles as allosteric enhancers
作者:Anikó Göblyös、Sabrina Neves Santiago、Daniele Pietra、Thea Mulder-Krieger、Jacobien von Frijtag Drabbe Künzel、Johannes Brussee、Adriaan P. IJzerman
DOI:10.1016/j.bmc.2005.01.006
日期:2005.3
A number of 2-aminothiazoles (2a-e) and their amide derivatives (4-10) were prepared. The 2-aminothiazoles themselves were tested as allosteric enhancers of agonist binding to human adenosine A, receptors. In a variety of experimental set-ups the compounds did not show any such effect, in contrast to earlier findings by another research group. Subsequently the 2-aminothiazoles were used as intermediates in the synthesis of a number of amide derivatives of either aromatic (4-6) or aliphatic nature (7-10). Some of the compounds emerged as moderately active antagonists on human adenosine A(1) and/or A(2A) receptors with lower or negligible potency at adenosine A(3) receptors. (c) 2005 Elsevier Ltd. All rights reserved.