Synthetic studies towards cyclic peptides. Concise synthesis of thiazoline and thiazole containing amino acids
作者:Michael North、Gerald Pattenden
DOI:10.1016/s0040-4020(01)81482-4
日期:——
Concise and efficient syntheses of optically pure thiazoline and thiazole containing amino acids of the constitution (26) and (27), based on simple condensation reactions between cysteine esters and N-protected imino ethers (22) and (25) derived from chiral amino acids, are described. The synthetic procedures are compatible with a range of amino acid side chains and protecting groups, and allow the
基于半胱氨酸酯与手性氨基酸衍生的N-保护的亚氨基醚(22)和(25)之间的简单缩合反应,可以高效,高效地合成结构纯净的噻唑啉和噻唑结构氨基酸(26)和(27)进行说明。合成程序可与一系列氨基酸侧链和保护基团兼容,并允许制备各种小的光学纯肽,即(32)和(34),适合于修饰天然存在的环状肽,例如赖索胺(3) )和(4)。