METHOD FOR PREPARATION OF N-ACETYL CYSTEINE AMIDE AND DERIVATIVES THEREOF

METHOD FOR PREPARATION OF N-ACETYL CYSTEINE AMIDE AND DERIVATIVES THEREOF

The present invention includes methods for making and isolating N-acetylcysteine amide, intermediates and derivatives thereof comprising: contacting cystine with an alcohol and a chlorinating reagent to form an organic solution containing L-cystine dimethylester dihydrochloride; combining dried or u...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WALL, G., Michael, JOHNSON, Doug, RUBENSTEIN, Anja, TUCKER, Rodney, BOLGER, Josh
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:The present invention includes methods for making and isolating N-acetylcysteine amide, intermediates and derivatives thereof comprising: contacting cystine with an alcohol and a chlorinating reagent to form an organic solution containing L-cystine dimethylester dihydrochloride; combining dried or undried L-cystine dimethylester dihydrochloride with a triethylamine, an acetic anhydride, and an acetonitrile to form a di-N-acetylcystine dimethylester; mixing dried di-N-acetylcystine dimethylester with ammonium hydroxide to form a di-N-acetylcystine amide; and separating dried di-N-acetylcystine dimethylester into N-acetylcysteine amide with dithiothreitol, triethylamine and an alcohol.