作者:Yoko Yasuno、Makoto Hamada、Takeshi Yamada、Tetsuro Shinada、Yasufumi Ohfune
DOI:10.1002/ejoc.201300112
日期:2013.4
Dehydroamino acid (Dhaa) is recognized as a useful tool or substrate for amino acid and peptide research. Although the stereoselective synthesis of the thermodynamically more stable Z-Dhaa has been well examined and established, the stereoselective synthesis of E-Dhaa has still remained to be a challenging synthetic task. In this paper, a stereoselective synthesis of E-Dhaa esters using a new (α-d
脱氢氨基酸 (Dhaa) 被认为是氨基酸和肽研究的有用工具或底物。尽管热力学上更稳定的 Z-Dhaa 的立体选择性合成已得到充分研究和确立,但 E-Dhaa 的立体选择性合成仍然是一项具有挑战性的合成任务。在本文中,描述了使用新的(α-二苯基膦酰基)甘氨酸立体选择性合成 E-Dhaa 酯。新方法的特征方面总结如下:(i)金属添加剂在促进 E 立体选择性方面起着重要作用。(ii) NaI 用于合成带有芳基取代基和氨基官能团的 E-Dhaas,