Highly diastereoselective preparation of anti-α,β-dialkyl β-amino acids containing natural α-amino acid side chains
作者:Stefania Capone、Silvana Pedatella、Annalisa Guaragna、Mauro De Nisco、Giovanni Palumbo
DOI:10.1016/j.tet.2007.09.049
日期:2007.12
An efficient synthesis of anti-2-alkyl β3-amino acids was developed starting from the fully protected β3-amino acids. The strategy allows the introduction of the side chain of natural α-amino acids such as Ala, Phe and Ser at the C-2 position, with high diastereoselectivity. The preparation of 2-methyliden-β3-amino acids is also reported. This methodology does not need the use of expensive chiral reagents
的有效的合成反-2-烷基β 3 -氨基酸被开发从完全受保护的β开始3 -氨基酸。该策略允许以高非对映选择性在C-2位置引入天然α-氨基酸如Ala,Phe和Ser的侧链。2- methyliden-β的制备3个也被报告α-氨基酸。该方法不需要使用昂贵的手性试剂和/或手性助剂,并且得到具有正交保护基的化合物。