Novartis Ag

Novartis Corporation

Vittorio Rasetti

Robert Mah

Hans Allgeier

Silvio Ofner

Joachim Nozulak

Manuel Koller

Wolfgang Froestl

Henri Mattes

David Orain

Markus G Grutter

Nicolas Soldermann

Johanne Renaud

Nissim Claude Cohen

Jurgen Klaus Maibaum

Philipp Floersheim

Heinrich Rueger

The present invention relates to 1H-Quinazoline-2,4-dione derivatives of formula(I) wherein the substituents are defined as in the specification, their preparation, their use as pharmaceuticals, and pharmaceutical compositions containing them.

Quinazoline derivatives

Compounds of the formula I ##STR1## in which R.sub.1 is arylamino, N-aryl-N-(lower alkoxy-lower alkyl)-amino, N-aryl-N-aryl-lower alkyl-amino or heterocyclyl bonded via a ring carbon atom, X is a carbonyl or methylene group, R.sub.2 and R.sub.3 independently of one another are hydrogen or lower alkyl or, together with the carbon atom with which they are bonded, are a cycloalkylidene radical, R.sub.4 is hydrogen, lower alkyl, lower alkanoyl or lower alkoxycarbonyl, R.sub.5 is hydroxyl, lower alkanoyloxy or lower alkoxycarbonyloxy, R.sub.6 is hydrogen, lower alkyl, lower alkenyl, lower alkynyl, cycloalkyl, cycloalkyl-lower alkyl, aryl-lower alkyl or heteroaryl-lower alkyl having 5 to 7 ring atoms in the heteroaryl ring and R.sub.7 is hydrogen or lower alkyl, or R.sub.6 and R.sub.7, together with the carbon atom with which they are bonded, are a cydoalkylidene radical and R.sub.8 denotes an aliphatic, cycloaliphatic-aliphatic or heteroarylaliphatic radical, and their salts can be used as active ingredients for medicaments for treatment of high blood pressure.

2,9-diamino- and 2-amino-8-carbamoyl-4-hydroxy-alkanoic acid amide

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Riehen, Switzerland

Vittorio Rasetti