Dihydroimidazo[5.1-a]-beta-carboline derivatives, method for...

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

Reexamination Certificate

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C546S064000

Reexamination Certificate

active

10478002

ABSTRACT:
The invention concerns dihydroimidazo[5,1-a]-β-carboline compounds of general formula (I)wherein in particular, R1, R2, R3, R4, R6and R7, identical or different, independently of one another, present a hydrogen, halogen atom, an alkyl, hydroxyl, alkoxy, trihalogenoalkyl, alkylamino, dialkylamino, aryl, arylalkyl, carboxy, alkylcarbonyloxy, acyl, aryloxy or arylalkoxy group; R5represents a hydrogen atom, an alkyl or arylalkyl group; and their isomers as well as their addition salts to a pharmaceutically acceptable acid. The inventive compounds are for use in medicine, in particular as hypnotics.

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