| abstract |
FIELD: organic chemistry, chemical technology, medicine, pharmacy. n SUBSTANCE: invention describes derivatives of benzodiazepine of the general formula (I) n and their pharmaceutically acceptable acid-additive salts wherein X means a ordinary bond or ethynediyl group; when X means ordinary bond then R 1 means halogen atom, (lower)-alkyl, (lower)-alkylcarbonyl, (lower)-cycloalkyl, benzoyl, phenyl substituted optionally with halogen atom, hydroxyl, (lower)-alkyl, (lower)-alkoxy-group, halogen-(lower)-alkoxy-group or cyano-group; styryl, phenylethyl, naphthyl, diphenyl, benzofuranyl, or 5- or 6-membered heterocyclic ring representing thiophenyl, furanyl, pyridinyl, dihydropyridinyl, tetrahydropyridinyl which are optionally substituted; when X means ethynediyl group then R 1 means hydrogen atom, (lower)-alkyl substituted optionally with oxo-group; (lower)-cycloalkyl substituted with hydroxyl; (lower)-cycloalkenyl substituted optionally with oxo-group; (lower)-alkenyl, optionally substituted phenyl; 5- or 6-membered heterocyclic ring representing thiophenyl, thiazolyl, pyridinyl, dihydropyridinyl, tetrahydropyridinyl or dihydropyranyl and substituted optionally; R 3 means phenyl, pyridyl, thiophenyl or thiazolyl which are substituted optionally. These compounds can be used for treatment or prophylaxis of acute and/or chronic neurological diseases, such as psychosis, schizophrenia, Alzheimer's disease, disorder of cognitive ability and memory disorder. Also, invention describes a medicinal agent based on these compounds and a method for preparing compounds of the formula (I). n EFFECT: improved method for preparing, valuable medicinal properties of compounds. n 10 cl, 1 tbl, 173 ex |