PROCESS FOR THE PREPARATION OF N-AMINO SUBSTITUTED HETEROCYCLIC COMPOUNDS

PROCESS FOR THE PREPARATION OF N-AMINO SUBSTITUTED HETEROCYCLIC COMPOUNDS

An improved process for the preparation of N-amino nitrogen heterocyclic compounds is disclosed and claimed. In an embodiment of this invention, a compound of the formula (VI) is prepared starting from the corresponding indole derivative by way of N-amination and subsequently forming an hydrazone by...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HANNA REDA G, LEE GEORGE E, WEIBERTH FRANZ, UTZ ROLAND, DUBBERKE SILKE, MUELLER-LEHAR JURGEN
Format: Patent
Sprache:eng ; slv
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
ORGANIC CHEMISTRY
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
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Beschreibung
Zusammenfassung:An improved process for the preparation of N-amino nitrogen heterocyclic compounds is disclosed and claimed. In an embodiment of this invention, a compound of the formula (VI) is prepared starting from the corresponding indole derivative by way of N-amination and subsequently forming an hydrazone by the reaction with a keto compound in a single step. Further reduction of the hydrazone and subsequent coupling with a pyridine compound affords the compound of formula VI or a suitable salt thereof.