Recovery of rieamycin from broths - by oxidn to an insol form

Rifamycin B in a fermentation broth is oxidised with NaNO2, NaS2O3 or H2O at 15-25 degrees C and pH 4-75 and the insol rifamycin O recovered. An example uses NaNO2 to give rifamycin O of 95% purity/after recrystallisation) in substantially quantitative yields.

Bibliographische Detailangaben

Hauptverfasser:	BONFANTI,GIOVANNI, TUROLLA,CARLO, RENATO PASOUALUCCI,CARMINE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY
Online-Zugang:	Volltext bestellen
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