Fluorous <scp>l</scp>-Carbidopa Precursors: Highly Enantioselective Synthesis and Computational Prediction of Bioactivity
作者:Albert Granados、Anna del Olmo、Francesca Peccati、Thierry Billard、Mariona Sodupe、Adelina Vallribera
DOI:10.1021/acs.joc.7b02685
日期:2018.1.5
(S)-α-aminated β-keto esters were prepared through a highly enantioselective electrophilic α-amination step in the presence of europium triflate and (R,R)-phenyl-pybox. These compounds are precursors of fluorinated analogues of l-carbidopa, which is known to inhibit DOPA decarboxylase (DDC), a key protein in Parkinson’s disease. Fluorination provides better stability for biological applications, which
在三氟甲磺酸euro和(R,R)-苯基-吡咯存在下,通过高度对映选择性的亲电子α-胺化步骤,制备了新的对映体纯氟(S)-α-氨基化的β-酮酯。这些化合物是1-卡比多巴的氟化类似物的前体,已知该类似物可抑制帕金森氏病的关键蛋白多巴脱羧酶(DDC)。氟化提供了更好的稳定性,生物应用,这有可能导致DDC抑制剂优于升-卡比多巴本身。在与DDC相互作用的新结构上进行的诱导拟合对接计算模拟突出表明,要在DDC位点有效结合,在1- carbidopa类似物的芳环上必须存在至少一个羟基取代基,并表明氟的存在可以进一步固定配体在活性位点的位置。