Merck Patent Gesellschaft MIT Beschrankter Haftung

Michael Kloft

Klaus-Otto Minck

Rochus Jonas

Hanns Wurziger

Hans-Jochen Schliep

Hans J Enenkel

Juergen Harting

Jurgen Harting

2-Aryltetraazaindenes of the formula ##STR1## wherein --A-- is --N.dbd.CH--CN.dbd.N-- or --CH.dbd.N--N.dbd.CH--, Ar is unsubstituted phenyl or phenyl mono-, di- or tri-substituted by hydroxyl, mercapto, dialkylamino, trifluoromethyl and/or --Z--R groups, Z is --O--, --S-- or --SO-- and R is alkyl, alkenyl, alkynyl or cyanomethyl, the alkyl, alkenyl and alkynyl groups each having up to 5 C atoms, and their physiologically acceptable salts, exhibit blood pressure, myocardial contraction, and anti-ulcer activities.

Pharmaceutical compositions for treating ulcers containing

2-Aryltetraazaindenes of the formula ##STR1## wherein --A-- is --N.dbd.CH--CH.dbd.N-- or --CH.dbd.N--N.dbd.CH--, Ar is unsubstituted phenyl or phenyl mono-, di- or trisubstituted by hydroxyl, mercapto, dialkylamino, trifluoromethyl and/or --Z--R groups, Z is --O--, --S-- or --SO-- and R is alkyl, alkenyl, alkynyl or cyanomethyl, the alkyl, alkenyl and alkynyl groups each having up to 5 C atoms, and their physiologially acceptable salts, exhibit blood pressure, myocardial contraction, and anti-ulcer activities.

Pharmaceutical compositions containing 2-aryltetraazaindenes for

2-Aryltetraazaindenes of the formula ##STR1## wherein --A-- is --N.dbd.CH--CH.dbd.N-- or --CH.dbd.N--N.dbd.CH--, Ar is unsubstituted phenyl or phenyl mono-, di- or tri-substituted by hydroxyl, mercapto, dialkylamino, trifluoromethyl and/or --Z--R groups, Z is --O--, --S-- or --SO-- and R is alkyl, alkenyl, alkynyl or cyanomethyl, the alkyl, alkenyl and alkynyl groups each having up to 5 C atoms, and their physiologically acceptable salts, exhibit blood pressure, myocardial contraction, and anti-ulcer activities.

2-Aryltetraazaindenes for treating cardiac insufficiency

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Darmstadt-Arheilgen, Germany

Michael Kloft