The synthesis of a neuropeptide, γ-L-glutamyltaurine (3a), was achieved via α-benzyl-γ-L-glutamyltaurine (2a) as a useful intermediate, which was prepared from α-benzyl N-tert-butoxycarbonyl-L-glutamate (1a) and taurine (2-aminoethanesulfonic acid) by active ester method. The preparation of its α-isomer 3b was also described.
以δ-苄基-δ-L-谷
氨酰
嘌呤(2a)为有用中间体,通过活性酯法由δ-苄基 N-叔丁氧羰基-
L-谷氨酸(1a)和
牛磺酸(2-
氨基
乙磺酸)合成了神经肽δ-L-谷
氨酰
嘌呤(3a)。此外,还介绍了其δ-异构体 3b 的制备方法。