The compounds of the following formula:
1
wherein R, R
2
, R
3
and A have the meanings given in the specification, are endowed with selective A
3
adenosine receptor antagonist activity. These compounds can be used in a pharmaceutical composition to treat disorders caused by excessive activation of the A
3
receptor, or can be used in a diagnostic application to determine the relative binding of other compounds to the A
3
receptor. The compounds can be labeled, for example with fluorescent or radiolabels, and the labels used in vivo or in vitro to determine the presence of tumor cells which possess a high concentration of adenosine A
3
receptors.
The compounds of the following formula:
wherein R, R
2
, R
3
and A have the meanings given in the specification, are endowed with selective A
3
adenosine receptor antagonist activity. These compounds can be used in a pharmaceutical composition to treat disorders caused by excessive activation of the A
3
receptor, or can be used in a diagnostic application to determine the relative binding of other compounds to the A
3
receptor. The compounds can be labeled, for example with fluorescent or radiolabels, and the labels used in vivo or in vitro to determine the presence of tumor cells which possess a high concentration of adenosine A
3
receptors.
Pyrazolo[4,3-<i>e</i>]-1,2,4-triazolo[1,5-<i>c</i>]pyrimidine Derivatives as Highly Potent and Selective Human A<sub>3</sub> Adenosine Receptor Antagonists
作者:Pier Giovanni Baraldi、Barbara Cacciari、Romeo Romagnoli、Giampiero Spalluto、Karl-Norbert Klotz、Edward Leung、Katia Varani、Stefania Gessi、Stefania Merighi、Pier Andrea Borea