FORFARANDE FOR FRAMSTELLNING AV APOVINKAMINSYRAESTRAR

Apovincaminic acid esters of the general formula (I> (wherein R and R independently represent alkyl groups having from 1 to 6 carbon atoms) may be prepared by reacting a hydroxyamino-E-homo- eburnane of the general formula (II> (wherein R and R are as defined above) or an acid addition salt th...

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Bibliographische Detailangaben
Hauptverfasser: L SZABO, M FARKAS, G KALAUS, J KREIDL, C SZANTAY, G VISKY, L CZIBULA, A NEMES
Format: Patent
Sprache:swe
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Zusammenfassung:Apovincaminic acid esters of the general formula (I> (wherein R and R independently represent alkyl groups having from 1 to 6 carbon atoms) may be prepared by reacting a hydroxyamino-E-homo- eburnane of the general formula (II> (wherein R and R are as defined above) or an acid addition salt thereof with an organic sulfonic acid, in an aprotic organic solvent. The compounds of the general formula (I) are useful pharmaceuticals.