IMPROVED PROCESS FOR PREPARING GABAPENTIN

IMPROVED PROCESS FOR PREPARING GABAPENTIN

A one pot process for preparing l-(aminomethyl)-cyclohexaneacetic acid or pharmaceutically acceptable salts thereof comprises the steps of hydrolysing 1-cyanocyclohexaneacetic acid ethyl ester with a potassium, sodium or lithium hydroxide to form a salt of 1-cyanocyclohexaneacetic acid; in-situ hydr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KELLEHER, PATRICK, DAVIES, SIMON, TULLY, WILLIAM EUGENE
Format: Patent
Sprache:eng ; fre
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:A one pot process for preparing l-(aminomethyl)-cyclohexaneacetic acid or pharmaceutically acceptable salts thereof comprises the steps of hydrolysing 1-cyanocyclohexaneacetic acid ethyl ester with a potassium, sodium or lithium hydroxide to form a salt of 1-cyanocyclohexaneacetic acid; in-situ hydrogenating the salt of 1-cyanocyclohexaneacetic acid in the presence of a catalyst to form the salt of l-(aminomethyl)-cyclohexaneacetic acid; and isolating l-(aminomethyl)-cyclohexaneacetic acid.