Asymmetric Access to Peptidyl β3-Aldehydes by Coupling ofN-Phthalyl α-Amino Acids with a Synthetic Heterocyclic β-Amino Aldehyde Precursor
作者:Biaolin Yin、Robert Dhal、Vincent Maisonneuve、Gilles Dujardin
DOI:10.1002/ejoc.200600262
日期:2006.8
Asymmetric access to novel N-protected (di)peptidyl β3-aldehydes (“β3-PAs”) has been achieved through direct coupling of a chiral non-racemic 6-alkoxytetrahydrooxazinone with N-phthalyl L-α-amino acids. Kinetic resolution allows for the fruitful use of racemic amino acids in this process. Acidic hydrolysis of the diastereomerically pure, coupling products leads to the title N-phthalyl-β3-PAs in high
通过将手性非外消旋 6-烷氧基四氢恶嗪酮与 N-邻苯二甲酰 L-α-氨基酸直接偶联,实现了对新型 N-保护(二)肽基 β3-醛(“β3-PAs”)的不对称访问。动力学拆分允许在此过程中有效地使用外消旋氨基酸。非对映异构纯的偶联产物的酸水解以高产率得到标题 N-邻苯二甲酰-β3-PA。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)