Synthesis of thyrotropin-releasing hormone-related peptides using N.ALPHA.-tert-dutyflxycarbonyl-.OMEGA.-(N-tert-butyloxycarbonylcarbamoyl)-.ALPHA.-amino acids.
作者:Naoki SAKURA、Kyoko HIROSE、Miwako NISHIJIMA、Tadashi HASHIMOTO、Takasi OKABE、Chiaki MIYAMORI、Tamotsu SATO
DOI:10.1248/cpb.37.3125
日期:——
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。