Patent ID: 7776833

Claim:
A method of treating diseases caused by disorders of nitrergic system and/or dopaminergic system of an organism comprising administering an active ingredient having normalizing effect with respect to nitrergic and dopaminergic systems, wherein the active ingredient is present in a pharmaceutically-acceptable carrier in an amount sufficient for effecting said systems, said active ingredient being a cyclic bioisostere of derivatives of a purine system having a general structural formula where R is selected from the group consisting of Li, Na, and K; R 1 is selected from the group consisting of —H, —NH 2 , —Br, —Cl, —OH, and —COOH; A is selected from the group consisting of —N═ and —C═; B is selected from the group consisting of —N═ and —C═; Z is selected from the group consisting of —C═ and —N═; wherein when A is —N═, then B is —N═ and Z is —C═, or pharmacologically acceptable salts thereof.