| 摘要 |
<p>An improvement in the process of preparing ceftazidime pentahydrate from ceftazidime dihydrobromide which comprises commingling a secondary-amine-type ion-exchange resin such as Amberlite LA-2 in a water-immiscible organic solvent with an aqueous solution of the dihydrobromide, stirring the mixture while maintaining a pH at or below about 6.0 and isolating ceftazidime pentahydrate from the aqueous layer. This process provides significantly higher yields of the pentahydrate than previously could be obtained from the dihydrobromide.</p> |
