A Stereospecific Elimination to Form Dehydroamino Acids: Synthesis of the Phomopsin Tripeptide Side Chain
作者:Michelle M. Stohlmeyer、Hiroko Tanaka、Thomas J. Wandless
DOI:10.1021/ja991037q
日期:1999.6.1
An increasing interest in R,â-dehydroamino acids has developed in recent years based both on their importance as commodity chemicals and their presence in biologically active natural products. Efficient methods for the asymmetric hydrogenation of R,â-dehydroamino acids allow access to a wide variety of unnatural amino acids.1 Dehydroamino acids are also found in many natural products including the antrimycins
近年来,基于它们作为商品化学品的重要性以及它们在生物活性天然产品中的存在,人们对 R,â-脱氢氨基酸越来越感兴趣。R,â-脱氢氨基酸不对称氢化的有效方法允许获得多种非天然氨基酸。1 脱氢氨基酸也存在于许多天然产物中,包括抗霉素、腱毒素和磷酸酶抑制剂微囊藻毒素和节球藻毒素。2 不饱和由于烯烃的存在,氨基酸引入了构象刚性元素以及反应性的变化。 3 在本报告中,我们描述了一种有效的立体选择性方法,用于从现成的 α-羟基氨基酸合成 R,α-脱氢氨基酸.