FIELD: chemistry.
SUBSTANCE: invention concerns benzothiazole derivatives of general formula (1) and their pharmaceutically acceptable acid-additive salts as adenosine receptor ligands with high affinity to A2A adenosine receptor, and based medicine. Compounds can be applied in treatment and prevention of diseases mediated by A2A adenosine receptors, such as Alzheimer's disease, some depressive states, toxicomania, Parkinson's disease. In general formula (I) 
, R is C5-C6-cycloalkyl non-substituted or substituted by hydroxy group, or is ethyl or isobutyl, or is tetrahydropyrane-4-yl or -(CH2)n-tetrahydrofurane-2 or 3-yl or is 5-hydroxybicyclo[2,2,1]hept-2-yl; X is CH or N; n is 0 or 1.
EFFECT: enhanced efficiency of composition and treatment method.
12 cl, 2 dwg, 14 ex
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