作者:Hans-Günther Schmalz、Peter Huy
DOI:10.1055/s-0030-1258428
日期:2011.3
Solubilization of proline as the triethylammonium salt allows N-protection (as the Boc, Cbz or Moc derivative) and subsequent esterification or amidation of the carboxy terminus to be performed in an efficient one-pot fashion. Based on this concept, highly practical protocols were developed to prepare a series of proline derivatives (including Pro-Ser dipetides, Weinreb amides and N-protected proline esters), which are important intermediates, for instance, for the synthesis of proline-derived peptides, chiral reagents and catalysts for asymmetric synthesis.
将脯氨酸溶解为三乙基铵盐后,就可以高效地进行 N 保护(作为 Boc、Cbz 或 Moc 衍生物)以及随后的酯化或羧基末端的酰胺化反应。基于这一概念,我们开发出了非常实用的方案来制备一系列脯氨酸衍生物(包括 Pro-Ser 二乙酸酯、Weinreb 酰胺和 N 保护脯氨酸酯),这些衍生物是重要的中间体,例如用于合成脯氨酸衍生肽、手性试剂和不对称合成催化剂。