Preparation of Sugar Amino Acids by Claisen-Johnson Rearrangement: Synthesis and Incorporation into Enkephalin Analogues
作者:Ana Montero、Enrique Mann、Bernardo Herradón
DOI:10.1002/ejoc.200400166
日期:2004.7
convenient route for the synthesis of an unsaturated branched sugar bearing a carboxylic acid and an amino group (masked as an azide group) by employing a totally stereoselective Claisen−Johnson rearrangement as the key step. Several Met- and Leu-enkephalin analogues with different substitution patterns at the N- and C-termini were prepared by incorporating this sugar amino acid (SAA) as a substitute
通过采用完全立体选择性的 Claisen-Johnson 重排作为关键步骤,我们开发了一种方便的路线,用于合成带有羧酸和氨基的不饱和支链糖(掩蔽为叠氮化物基团)。通过掺入这种糖氨基酸 (SAA) 作为母体五肽的中心 Gly-Gly 片段的替代品,制备了几种在 N 和 C 末端具有不同取代模式的 Met 和 Leu 脑啡肽类似物。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)