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:
Feb. 05, 1980
Filed:
Jul. 06, 1978
Karl H Mayer, Leverkusen, DE;
Helmut Heitzer, Leverkusen, DE;
Friedrich Hoffmeister, Wuppertal, DE;
Arend Heise, Wuppertal, DE;
Stanislav Kazda, Wuppertal, DE;
Bayer Aktiengesellschaft, Leverkusen, DE;
Abstract
The invention covers compounds of the formula ##STR1## in which R.sup.1 and R.sup.5 each represents 0, 1, 2, 3 or 4 of the following substituents: alkyl, hydroxyl, acyloxy, alkoxy, nitro, amino, alkylamino, dialkylamino, acylamino, acylalkylamino, alkoxycarbonylamino, halogen, trifluoromethyl, cyano, carboxyl, alkoxycarbonyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, aminosulphonyl, alkylaminosulphonyl, dialkylaminoamino, R.sup.2 is hydrogen, optionally substituted alkyl, aralkyl or aryl or heterocyclo-alkyl, acyl or alkoxycarbonyl, and R.sup.3 and R.sup.4 are each hydrogen, or optionally substituted alkyl, aralkyl, aryl or hetero-aryl, are useful as medicaments which have an action on the central nervous system, in particular as, for example, tranquilizers and/or antiamnesics. Also included in the invention are methods for preparing said compounds, compositions containing them and methods for the use of said compounds and compositions.