abstract |
Use of a compound of formula (I) wherein R 1 is selected from alkyl, aryl, alkoxy, aryloxy, 0thioalkyl, thioaryl, CN, halo, NR 5 R 6 , NR 4 COR 5 , NR 4 CONR 5 R 6 , NR 4 CO 2 R 7 and NR 4 SO 2 R 7 ; R 2 is selected from N, O or S-containing heteroaryl groups, wherein the heteroaryl group is attached via an unsaturated carbon atom which is adjacent to one or two N, O or S-heteroatom(s), other than ortho, ortho-disubstituted heteroaryl groups; R 3 is selected from H, alkyl, COR 8 , CONR 9 R 10 , CONR 8 NR 9 R 10 , CO 2 R 11 and SO 2 R 11 ; R 4 , R 5 and R 6 are independently selected from H, alkyl and aryl or where R 5 and R 6 are in an (NR 5 R 6 ) group then R 5 and R 6 may be linked to form a heterocyclic ring; R 7 is selected from alkyl and aryl; R 8 , R 9 and R 10 are independently selected from H, alkyl and aryl, or R 9 and R 10 may be linked to form a heterocyclic ring, or where R 8 , R 9 and R 10 are in a (CONR 8 NR 9 R 10 ) group, R 8 and R 9 may be linked to form a heterocyclic group; and R 11 , is selected from alkyl and aryl, or a pharmaceutically acceptable salt thereof or prodrug thereof, in the treatment or prevention of a disorder in which the blocking of purine receptors, particularly adenosine receptors and more particularly A 2A receptors, may be beneficial, particularly wherein said disorder is a movement disorder such as Parkinson's disease or said disorder is depression, cognitive or memory impairment, acute or chronic pain, ADHD or narcolepsy, or for neuroprotection in a subject; compounds of formula (I) for use in therapy; and novel compounds of formula (I) per se. |