A process for preparing gamma-L-glutamyl-taurine, which has been found to be effective therapeutically through the control of vitamin A metabolism, which comprises reacting carbobenzyloxy-L-glutaminic acid-.alpha.-benzyl ester with triethylamine and isobutylchloroformate and then treating the reaction mixture with cystamine dihydrochloride to recover N,N'-bis-(N-carbobenzyloxy-gamma-[.alpha.-benzyl]-L-glutamyl)-cystamine. The latter is reacted with hydrogen peroxide in glacial acetic acid to produce carbobenzyloxy-gamma-(.alpha.-benzyl)-L-glutamyl taurine. The latter compound is treated with hydrogen bromide in glacial acetic acid to recover the gamma-(.alpha.-benzyl)-L-glutamyl taurine and this compound is treated with potassium hydroxide solution to yield the gamma-L-glutamyl taurine.
一种制备γ-L-谷
氨酰
牛磺酸的方法,该方法通过控制
维生素A代谢已被发现在治疗上具有有效性,包括将羧苄氧基-
L-谷氨酸-α-苄基酯与
三乙胺和异丁基
氯甲酸酯反应,然后用囊胺二盐酸盐处理反应混合物以回收N,N'-双(N-羧苄氧基-γ-[α-苄基]-L-谷
氨酰)-囊胺。然后将后者与
冰醋酸中的
过氧化氢反应,产生羧苄氧基-γ-(α-苄基)-L-谷
氨酰
牛磺酸。然后将后者化合物与
冰醋酸中的
氢溴酸处理以回收γ-(α-苄基)-L-谷
氨酰
牛磺酸,然后将该化合物与
氢氧化钾溶液处理以产生γ-L-谷
氨酰
牛磺酸。