Biocatalytic synthesis of (2S)-5,5,5-trifluoroleucine and improved resolution into (2S,4S) and (2S,4R) diastereoisomers
作者:Hernan Biava、Nediljko Budisa
DOI:10.1016/j.tetlet.2013.04.128
日期:2013.7
correctly understand the effect of fluorination on bioactivity. Here we report an easy enzymatic approach for the synthesis of (2S)-5,5,5-trifluoroleucine and its subsequent resolution into its (2S,4S) and (2S,4R) diastereoisomers. This strategy stands for a sustainable synthesis and enhanced resolution by means of alternative protecting groups for the amino/acid functionalities than that previously reported
在治疗剂和蛋白质工程中引入带有CF 3部分的氟化氨基酸需要高纯度的手性样品的可及性,以便正确理解氟化对生物活性的影响。在这里,我们报告了一种简单的酶促方法,用于合成(2S)-5,5,5-三氟亮氨酸并随后拆分为其(2S,4S)和(2S,4R)非对映异构体。该策略代表了一种可持续的合成方式,并且通过与先前报道的氨基酸/酸官能度不同的保护基团增强了分离度。