Organocatalytic Approach to (<i>S</i>)-1-Arylpropan-2-ols: Enantioselective Synthesis of the Key Intermediate of Antiepileptic Agent (−)-Talampanel
作者:Rajiv T. Sawant、Suresh B. Waghmode
DOI:10.1080/00397910903221753
日期:2010.7.12
An efficient organocatalytic route for the preparation of enantioselective synthesis of (S)-1-arylpropan-2-ols derivatives, including the key intermediate of antiepileptic agent (−)-talampanel is described. The key steps involved are L-proline-catalyzed asymmetric α-aminooxylation of aldehydes and regioselective tosylation of diols followed by reduction.
描述了一种有效的有机催化路线,用于制备 (S)-1-芳基丙-2-醇衍生物的对映选择性合成,包括抗癫痫药 (-)-talampanel 的关键中间体。所涉及的关键步骤是 L-脯氨酸催化的醛的不对称 α-氨基氧基化和二醇的区域选择性甲苯磺酰化,然后还原。