Fremgangsmate ved fremstilling av hovedsakelig enkelt-enantiomer narwedin

A process for the preparation of substantially single enantiomer (-)-narwedine comprises seeding a solution of racemic narwedine dissolved in a solvent with substantially single enantiomer (-)-narwedine, provided that if an added amine base is present the ratic solvent:added amine base is greater th...

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Bibliographische Detailangaben
Hauptverfasser: TIFFIN PETER DAVID, POTTER GERARD ANDREW
Format: Patent
Sprache:nor
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Zusammenfassung:A process for the preparation of substantially single enantiomer (-)-narwedine comprises seeding a solution of racemic narwedine dissolved in a solvent with substantially single enantiomer (-)-narwedine, provided that if an added amine base is present the ratic solvent:added amine base is greater than 15:1.