C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
167/225, 260/273
C07D 471/04 (2006.01) A61K 31/435 (2006.01)
Patent
CA 1329807
ABSTRACT Tricyclic imidazolones of the structure: Image wherein Q is a divalent sulfur or oxygen atom; and n is 0 or the integer 1 or 2, a pharmaceutically acceptable salt thereof, or a biologically functional derivative thereof having a (C1-C5)alkyl or an alkanoyl substituent on one or both the nitrogen atoms of the imidazole ring, enhance myocardial contractile force and are useful as cardio- tonics in the treatment of heart failure.
566395
Claxton George P.
Dage Richard C.
Jones Winton D.
Schnettler Richard A.
Merrell Dow Pharmaceuticals (canada) Inc.
Osler Hoskin & Harcourt Llp
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