The compounds of the following formula: wherein R, R2, R3 and A have the meanings given in the specification, are endowed with selective A3 adenosine receptor antagonist activity. These compounds can be used in a pharmaceutical composition to treat disorders caused by excessive activation of the...http://www.google.es/patents/US6921825?utm_source=gb-gplus-sharePatente US6921825 - Adenosine A3 receptor modulators
