Application of Nα, Nca-di-tert-butyloxycarbonylhomoglutamine to synthesis of thyrotropin-releasing hormone (TRH) analogs was examined. The δ-lactam formation from homoglutaminylpeptides took place more easily than γ-lactam formation from glutaminylpeptides in water or dioxane containing acetic acid. [pHgu1, Nva2]-TRH had dose-dependent antagonistic activity against pentobarbital anesthesia in mice, but almost no binding activity to TRH receptor in rat brain.
研究人员研究了 Nα,Nca-二叔丁氧羰基高谷
氨酰胺在合成
促甲状腺激素释放激素(TRH)类似物中的应用。在含有
乙酸的
水或
二氧六环中,均谷
氨酰胺肽形成δ-内酰胺比谷
氨酰胺肽形成γ-内酰胺更容易。[pHgu1,Nva2]-TRH 对小鼠
戊巴比妥麻醉具有剂量依赖性拮抗活性,但对大鼠脑中的 TRH 受体几乎没有结合活性。