NOVEL METHOD OF PREPARING ISOOXAZOLYL-AND ISOTHIAZOLYLIMIDAZOBENZODIAZODIAZEPINE, NOVEL SUCH COMPOUND, THEIR USE AS PHARMACEUTICAL AGENT AND COMPOSITION CONTAINING SAME

摘要

The invention relates to a process for preparing IMAGE in which R3 represents IMAGE in which Ra represents a hydrogen, an alkyl (C1-5), cycloalkyl (C3-6) or phenyl, Y represents an oxygen or a sulphur, the broken line represents a possible bond, R4 and R5 represent a hydrogen, an alkyl (C1-5) or an alkenyl (C2-5), or together form an alkylene or alkenylene (C2-5), and R7 and R8 represent a hydrogen, a halogen, a nitro or nitrile radical or CX3 in which X represents a halogen, as well as their salts with acids. The products (I) possess advantageous pharmacological properties and are useful as medicaments, in particular in the treatment of memory disorders.