PRODUCTION OF 2-BROMO-ALPHA-ERGOCRYPTINE

The invention relates to a novel process for the preparation of 2-bromo- alpha -ergocryptine and its acid addition salt by brominating alpha -ergocryptine in such a way that the bromination is carried out at room temperature by using a dimethylsulphoxide-hydrogen bromide mixture containing no more 0...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	BEERA SUTEFUKOO, ERIKU BOKUSUCHIYU, YAANOSU GARAMUBOSU, FUERENTSU TORISHIYUCHIYURERU, GAABORU MEJIYUERI, RAIOSU KOBAACHIE, TEIBORU KEBE
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY HETEROCYCLIC COMPOUNDS HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC CHEMISTRY PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention relates to a novel process for the preparation of 2-bromo- alpha -ergocryptine and its acid addition salt by brominating alpha -ergocryptine in such a way that the bromination is carried out at room temperature by using a dimethylsulphoxide-hydrogen bromide mixture containing no more 0.02% of water and, if desired, converting the thus-obtained 2-bromo- alpha -ergocryptine to an acid addition salt in a known manner.