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:
May. 30, 1989
Filed:
Mar. 17, 1987
Sanofi, Paris, FR;
Centre National De La Recherche Scientifique, Paris, FR;
Abstract
The present invention concerns derivatives of 5H-pyrido[4,3-b]-indole with the following general formula: ##STR1## in which n represents a whole number from 2 to 4, R.sub.1 represents hydrogen or a lower alkyl group; R.sub.2 represents hydrogen, a hydroxy group or a lower alkyloxy group; R.sub.3 and R.sub.4 represents hydrogen, a lower alkyl group or hydroxyalkyl group, R.sub.5 can be identical or different and represents hydrogen, a hydroxy group or a lower alkyl group, as well as the tautomeric forms and the addition salts with pharmaceutically acceptable mineral or organic acids. The invention also concerns their preparation process, and their use as medicaments.