C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 237/04 (2006.01) A61K 31/50 (2006.01)
Patent
CA 2099262
Optically substantially pure (-) enantiomer of [[4-(1,4,5,6-tetrahydro-4-methyl-6-oxo-3-pyridazinyl)phenyl] hydrazono]propanedinitrile of formula Image or pharmaceutically acceptable salt thereof, intermediates and a process for the preparation are described. The product is useful as a cardiotonic agent, antihypertensive and vasodilator for the treatment of congestive heart failure.
Backstrom Reijo
Haarala Jorma
Haikala Heimo
Honkanen Erkki
Nore Pentti
Orion-Yhtyma Oy
Robic
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