| abstract |
New Formula (I) compounds are disclosed having NR2B selective NMDA receptor antagonist activity: n n nwhereinn one of the neighboring R 1 , R 2 , R 3 and R 4 groups is OH or NH2 and the others are each hydrogen , or two of the neighboring R 1 , R 2 R 3 and R 4 groups in given case together with one or more identical or different additional hetero atom and —CH═ and/or —CH 2 — groups forms a 5-6 membered homo- or heterocyclic ring, preferably pyrrole, pyrazole, imidazole, oxazole, oxo-oxazolidine, or 3-oxo-1,4-oxazine ring, and the other two of R 1 , R 2 , R 3 and R 4 groups are hydrogen atoms, R 5 and R 6 together with the nitrogen between them form a saturated or unsaturated, 4-6 membered heterocyclic ring, which is substituted by hydroxy group, and/or in given case phenyl or phenoxy, phenyl-(C 1 -C 4 alkyl), phenyl-(C 1 -C 4 alkoxy), phenoxy-(C 1 -C 4 alkyl), anilino, phenyl-(C 1 -C 4 alkylamino), [phenyl-(C 1 -C 4 alkyl)]-amino, benzoyl, hydroxy-diphenylmethyl, C 1 -C 4 alkoxycarbonyl-phenoxymethyl or benzhydrylidene group, optionally substituted on the aromatic ring by one or more halogen atom, cyano or hydroxy group, C 1 -C 4 alkyl or C 1 -C 4 alkoxy group, X is independently oxygen, —NH— or a CH2 group, Y is independently a nitrogen atom or a —CH— group, and the salts thereof formed with acids and bases. |