The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 14, 1986
Filed:
Feb. 22, 1984
Jean A Hannart, Dion-Valmont, BE;
Omnichem, S.A., , BE;
Abstract
The present invention is concerned with derivatives of 2,3,3a,4,5,6-hexahydro-1H-indolo(3,2,1-de)(1,5)naphthyridine of the formula ##STR1## in the form of base or acid addition salts, preferably with pharmaceutically acceptable acids, wherein one of the groups R1 and R2 represents a lower alkyl group and the other represents a hydrogen atom or R1 and R2 represent each independently an alkyl group or, together an alkanediyl group having from 4 to 6 carbon atoms. R3 represents a lower alkyl group, a hydrogen atom or a benzyl group. And either R5 represents a lower carboalkoxy group or a hydrogen atom and R6 represents with R4 an additional carbon-carbon bond; or R4 represents a hydrogen atom and R6 and R5 represent together an oxygen atom or respectively a hydrogen atom and a hydroxyl group.