| abstract |
The present invention relates to compounds of the general formula (I), (See formula I) wherein R is phenyl, optionally substituted by halogen, or is pyridin-3- or 4-yl, optionally substituted by lower alkyl, or is - NR1R2, wherein R1 and R2 form together with the N atom to which they are attached, heterocyclic rings selected from the group comprising morpholinyl, thiomorpholinyl, piperdinyl or piperazinyl, optionally substituted by - (CH2) n-hydroxy, lower alkyl or alkoxy lower; n is 0, 1 or 2; already pharmaceutically acceptable acid addition salts thereof.The compounds of formula I have been shown to have good affinity for the A2A receptor and are therefore useful for the treatment of diseases related to this receiver. |