Synthesis of protected γ-carboxyglutamates and γ-acylglutamates by rearrangement of N,N-diacylglutamates
作者:Anthony G. Avent、Heather M. E. Duggan、Douglas W. Young
DOI:10.1039/b503900b
日期:——
A new method for γ-acylation of protected glutamic acids, involving intramolecular rearrangement of an acyl urethane, has been devised to prepare the protected γ-carboxyglutamates 7, 9 and 11 and the protected 4-acylglutamates 15 and 22 from N,N-bisurethanes or N-acyl-N-urethanes of general structure 1. When the formyl-urethane 17 was used in the reaction, then the intermediate 18 in the intramolecular rearrangement was obtained.
我们设计了一种涉及酰基氨基甲酸酯分子内重排的受保护谷氨酸δ³-酰化的新方法,用一般结构 1 的 N,N-丁酮烷或 N-酰基-N-氨基甲酸酯制备受保护的δ³-羧基谷氨酸 7、9 和 11 以及受保护的 4-酰基谷氨酸 15 和 22。在反应中使用甲酰基-脲烷 17 时,可得到分子内重排的中间体 18。