Abstract: Use of a compound of the formula (I) wherein R1 is selected from alkyl, alkoxy, aryloxy, alkylthio, arylthio, aryl, halogen, CN, NR7R8, NR6COR7, NR6CO2R9 and NR6SO2R9; R2 is selected from aryl attached via an unsaturated carbon; R3 and R4 are independently selected from H, alkyl, halogen, alkoxy, alkylthio, CN and NR7R8; R5 is selected from H, acyclic alkyl, COR6, CONR7R8, CONR6NR7R8, CO2R9 and SO2R9; R6, R7 and R8 are independently selected from H, alkyl and aryl or where R7 and R8 are in an NR7R8 group R7 and R8 may be linked to form a hererocyclic group, or where R6, R7 and R8 are in a (CONR6NR7R8) group, R6 and R7 may be linked to form a hererocyclic group; and R9 is selected from alkyl and aryl, or a pharmaceutically acceptable salt thereof or prodrug thereof, in the manufacture of a medicament for the treatment or prevention of a disorder in which the blocking of purine receptors, particularly adenosine receptors and more particularly A2A receptors, may be beneficial, particularly wherein said disorder

Abstract: Use of a compound of formula (I) as defined herein, or a pharmaceutically acceptable salt or prodrug thereof, in the manufacture of a medicament for the treatment or prevention of a disorder in which the blocking of purine receptors, particularly adenosine receptors and more particularly A2a receptors, may be beneficial, such as a movement disorder, for example, Parkinson's Disease or progressive supemuclear palsy, Huntingtons disease, multiple system atrophy, corticobasal degeneration, Wilsons disease, Hallerrorder-Spatz disease, progressive pallidal atrophy, Dopa-responsive dystonia-Parkinsonism, spasticity, Alzheimer's disease or other disorders of the basal ganglia which result in dyskinesias.

Abstract: Use a compound of formula (I) wherein: R1 is hydrogen or alkyl; R2 and R3 are independently selected from hydrogen, alkyl, aryl and heterocyclyle or together may form a ring or R1 and R2 or R3 together may form an oxygen-containing, optionally fused ring pharmaceutically acceptable salts or prodrugs thereof, with the proviso that where R1 and R4 to R9 are hydrogen, R2 or R3 is not 3-methoxy-4-benzyloxyphenyl or 2-dimethylaminoethoxymethyl, in the manufacture of a medicament for the treatment or prevention of a disorder in which the blocking of purine receptors, particularly adenosine receptors and more particularly A2A receptors, may be beneficial.