87 results about "Adenosine a" patented technology

Compounds of formula (I) wherein: X is N; R1 is C1-C6 linear or branched alkyl or C1-C6 linear or branched alkenyl; R2 is hydrogen, C1-C6 linear or branched alkyl or C1-C6 linear or branched alkenyl, C6-C14 aryl or C6-C14 aryl(C1-C6) linear or branched alkyl or C6-C14 aryl(C1-C6) linear or branched alkenyl, with the aryl group optionally substituted by one or more substituents, either the same or different, selected from the group consisting of halogen, hydroxy, C1-C6 alkoxy linear or branched or C1-C6 alkenyloxy linear or branched, amino, optionally mono- or disubstituted with C1-C6 linear or branched alkyl; R3 is NH2, NHR4; R4 is C1-C6 alkyl or C1-C6 hydroxyalkyl, C1-C3 alkoxyalkyl, amino(C1-C6)alkyl, where the amino group is optionally substituted with one or two C1-C3 linear or branched alkyl groups, or with one or two C2-C3 alkenyl groups C6-C14 aryl or C6-C14 aryl(C1-C6)alkyl, with the aryl group optionally substituted by one or more substituents, either the same or different, selected from the group consisting by halogen, hydroxy, C1-C6 alkoxy linear or branched or C1-C6 alkenyloxy linear or branched, amino, mono- or di-substituted with C1-C6 alkyl linear or branched or C1-C6 alkenyl linear or branched; and their pharmaceutically acceptable salts. These compounds are antagonists of the adenosine A2a receptor and useful as medicaments, in particular for the treatment of Parkinson's disease.

The present invention is directed to methods of treating movement disorders by administering an effective amount of one or more adenosine A2A receptor antagonists to a patient in need thereof. The present invention also provides methods of decreasing the adverse effects of L-DOPA in patients receiving L-DOPA therapy in the treatment of Parkinson's disease. The present invention further provides methods and compositions for treating Parkinson's disease patients with sub-clinically effective doses of L-DOPA by combining L-DOPA treatment with an effective amount of one or more adenosine A2A receptor antagonists (i.e., L-DOPA sparing effect). The present invention further provides methods of effective treatment of Parkinson's disease by co-administering at least one adenosine A2A receptor antagonist, L-DOPA and a dopamine agonist and / or a COMT inhibitor and / or a MAO inhibitor. The present invention further provides methods of prolonging effective treatment of Parkinson's disease by administering an adenosine A2A receptor antagonist singly or together with a dopamine agonist, and / or a COMT inhibitor, and / or a MAO inhibitor without prior or subsequent administration of L-DOPA, delaying or removing on-set of L-DOPA motor complication.

Provided are therapeutic and / or preventive agents for migraine which comprise, as an active ingredient, a compound having a selective adenosine A2A receptor antagonistic activity or a pharmaceutically acceptable salt thereof; therapeutic and / or preventive agents for migraine which comprise, as an active ingredient, a compound having a selective adenosine A2A receptor antagonistic activity, which has an affinity for the adenosine A2A receptor 10 times or higher than that for the adenosine A1 receptor, or a pharmaceutically acceptable salt thereof; and the like.