A β-Lactone Route to Chiral γ-Substituted α-Amino Acids: Application to the Concise Synthesis of (<i>S)-</i>α-Azidobutyro Lactone and a Natural Amino Acid
作者:Reginald L. Tennyson、Guillermo S. Cortez、Héctor J. Galicia、Charles R. Kreiman、Christina M. Thompson、Daniel Romo
DOI:10.1021/ol017120b
日期:2002.2.1
In this report, enantiomerically pure 4-trichloromethyl-2-oxetanone is shown to be a versatile amino acid synthon leading to a variety of gamma-substituted alpha-amino acid precursors. The utility of this methodology was demonstrated by the concise synthesis of a protected homoserine equivalent, alpha-azidobutyro lactone, and a naturally occurring alpha-amino acid from the seeds of Blighia unijugata
[反应:见正文]β-内酯是有用的合成中间体,可用于访问许多功能阵列。在该报告中,对映体纯的4-三氯甲基-2-氧杂环丁酮被证明是一种通用的氨基酸合成子,可产生多种γ-取代的α-氨基酸前体。该方法的实用性通过简洁地合成了来自Blighia unijugata种子的受保护的高丝氨酸等效物α-叠氮基丁内酯和天然存在的α-氨基酸而得到证明。