Method for the production of praziquantel and precursors thereof

The present invention provides methods of preparing Praziquantel, in particular (R)-Praziquantel and analogues thereof in a stereoselective manner. One method involves asymmetric hydrogenation of the following intermediate compound (I) and subsequent cyclization.

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Bibliographische Detailangaben
Hauptverfasser:	Maillard, David, Waechtler, Andreas, Eberhardt, Luc, Lehmann, Stefan
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:	The present invention provides methods of preparing Praziquantel, in particular (R)-Praziquantel and analogues thereof in a stereoselective manner. One method involves asymmetric hydrogenation of the following intermediate compound (I) and subsequent cyclization.