作者:Georg Blaser、John M. Sanderson、Andrei S. Batsanov、Judith A.K. Howard
DOI:10.1016/j.tetlet.2008.02.120
日期:2008.4
of 5- and 6-substituted tryptophan derivatives that are difficult to prepare using alternative enzymatic approaches. Acylation of an activated amino acid, derived from serine in situ, is coupled with an enzymatic resolution step to furnish enantiopure analogues bearing a range of electron withdrawing and releasing substituents. Isolation of a dehydroalanine derivative as a by-product from some reactions
这项研究报告了一种简便的方法,用于合成各种5和6取代的色氨酸衍生物,这些色素很难使用替代酶方法制备。原位衍生自丝氨酸的活化氨基酸的酰化与酶促拆分步骤相结合,以提供带有一系列吸电子和释放电子的取代基的对映纯类似物。从某些反应中分离出作为副产物的脱氢丙氨酸衍生物,可为该反应的可能机理提供一些见解。