Method for cleaning 3-hydroxyamidinophenylalanine derivatives by the precipitation and recrystallisation of a salt and an aromatic sulphonic acid

The invention relates to a method for cleaning 3-hydroxyamidinophenylalanine derivatives comprising the steps: (a) addition of an aromatic sulphonic acid to a solution of an optionally contaminated 3-hydroxyamidinophenylalanine derivative in order to form a precipitate; (b) separation of the precipi...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	GREIVING HELMUT
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY
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