METHOD OF OBTAINING PURE ENANTIOMERS OF A PYRIDAZIONE DERIVATIVE

METHOD OF OBTAINING PURE ENANTIOMERS OF A PYRIDAZIONE DERIVATIVE

The invention provides a novel, crystalline polymorphic form of (-)-[[4-(1,4,5,6-tetrahydro-4-methyl-6-oxo-3-pyridazinyl)phenyl]hydrazono]propanedinitrile and a method for making the polymorph. The compound is useful as a cardiotonic agent.

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Bibliographische Detailangaben
Hauptverfasser: TANNINEN VELI PEKKA, MUTTONEN ESA, KAUKONEN JUKKA, LEHTONEN JORMA, BACKSTROM REIJO, TIMMERBACKA MIKA, HYPPOLA RIIKKA
Format: Patent
Sprache:eng
Schlagworte:
APPARATUS THEREFOR
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:The invention provides a novel, crystalline polymorphic form of (-)-[[4-(1,4,5,6-tetrahydro-4-methyl-6-oxo-3-pyridazinyl)phenyl]hydrazono]propanedinitrile and a method for making the polymorph. The compound is useful as a cardiotonic agent.