PROCESS FOR THE PREPARATION OF ALKOXYVINCAMINIC ACID ESTERS AND ALKOXYAPOVINCAMINIC ACID ESTERS

PROCESS FOR THE PREPARATION OF ALKOXYVINCAMINIC ACID ESTERS AND ALKOXYAPOVINCAMINIC ACID ESTERS

The invention relates to a new process for the preparation of alkoxyvincaminic acid esters of the formula (I) (I) and/or alkoxyapovincaminic acid esters of the formula (II) (II) wherein R1, R2 and R3 independently stand for alkyl groups having from one to 6 carbon atoms. The compounds of the formula...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: FERENC VEZEKENYI, JANOS GALAMBOS, DR CSABA SZANTAY, TIBOR ACS, DR TIBOR KEVE, DR GYORGY KALAUS, DR LAJOS SZABO, LAJOS DANCSI
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:The invention relates to a new process for the preparation of alkoxyvincaminic acid esters of the formula (I) (I) and/or alkoxyapovincaminic acid esters of the formula (II) (II) wherein R1, R2 and R3 independently stand for alkyl groups having from one to 6 carbon atoms. The compounds of the formulae (I) and (II) are pharmaceutically active, thus some of them show psychostimulant activity.