申请人:KYOWA HAKKO KOGYO CO., LTD.
公开号:EP0678501A1
公开(公告)日:1995-10-25
N-chloroacetylglutamine is produced by reacting chloroacetyl chloride with an alkaline aqueous solution of glutamine in the presence of a water-immiscible organic solvent, separating an aqueous layer by liquid-liquid separation, and crystallizing N-chloroacetyl-glutamine from the aqueous layer under acidic conditions. N-Chloroacetylglutamine useful as an intermediate for producing glycyl-L-glutamine which has higher stability than L-glutamine and is used as a component of an infusion solution can be obtained with high efficiency at low cost.
N-氯乙酰谷氨酰胺是通过氯乙酰氯与谷氨酰胺的碱性水溶液在不溶于水的有机溶剂存在下发生反应,通过液液分离法分离出水层,并在酸性条件下从水层中结晶出 N-氯乙酰谷氨酰胺而制得的。N-Cloroacetyl-glutamine 可用作生产甘氨酰-L-谷氨酰胺的中间体,其稳定性高于 L-谷氨酰胺,并可用作输液的成分。