Dynamic Enzymatic Kinetic Resolution of Methyl 2,3-Dihydro-1<i>H</i>-indene-1-carboxylate
作者:Jörg Pietruszka、Robert Christian Simon、Fabian Kruska、Manfred Braun
DOI:10.1002/ejoc.200901025
日期:2009.12
A new reaction setup for kinetic enzymatic resolution was established and is demonstrated for the case of the hydrolase-catalysed conversion of methyl 2,3-dihydro-1H-indene-1-carboxylate (1) in conjunction with a base-catalysed racemisation. The system allows controlled racemisation, resulting in efficient dynamic kinetic resolution (DKR) of the title compound. Short reaction times and high enantioselectivities
建立了一种新的动力学酶促拆分反应设置,并在水解酶催化的 2,3-二氢-1H-茚-1-羧酸甲酯 (1) 转化与碱催化外消旋化反应的情况下进行了演示。该系统允许受控外消旋化,从而实现标题化合物的高效动态动力学拆分 (DKR)。使用 CAL-B 和 TBD(1,5,7-三氮杂双环 [4.4.0]dec-5-ene)可获得较短的反应时间和较高的对映选择性。化合物 (R)-1 (ee 95%) 作为多米诺骨牌反应的起始材料,导致联芳茚满酮 (R)-8,肽基-脯氨酰-顺式/反式异构酶的新型抑制剂的先导化合物,在 94% ee。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)