An Enzyme Library Approach to Biocatalysis: Development of Nitrilases for Enantioselective Production of Carboxylic Acid Derivatives
作者:Grace DeSantis、Zuolin Zhu、William A. Greenberg、Kelvin Wong、Jenny Chaplin、Sarah R. Hanson、Bob Farwell、Lawrence W. Nicholson、Cynthia L. Rand、David P. Weiner、Dan E. Robertson、Mark J. Burk
DOI:10.1021/ja0259842
日期:2002.8.1
and diverse set of nitrilases is reported. The utility of this nitrilaselibrary for identifying enzymes that catalyze efficient production of valuable hydroxy carboxylicacidderivatives is demonstrated. Unprecedented enantioselectivity and substrate scope are highlighted for three newly discovered and distinct nitrilases. For example, a wide array of (R)-mandelic acidderivatives and analogues were
Glyoxalase-based toolbox for the enantioselective synthesis of α-hydroxy carboxylic acids
作者:Mussa Yedigenov、Niyaz Amire、Aizat Abdirassil、Tomiris Mulikova、Azamat Begenov、Anniina Kiesilä、Anatoly A. Peshkov、Vsevolod A. Peshkov、Darkhan Utepbergenov
DOI:10.1039/d3ob02098c
日期:——
highly enantioselective synthesis of L-α-hydroxy carboxylic acids (L-αHCAs) via enzymatic intramolecular Cannizzaro reaction of (hetero)aryl glyoxals in the presence of glutathione-independent human glyoxalase DJ-1. Combined with the optimized synthesis of D-αHCAs using glyoxalases I and II, this approach offers a general, scalable and operationally simple access to bothenantiomers of α-hydroxy acids in
我们报道了在不依赖谷胱甘肽的人乙二醛酶 DJ-1 存在下,通过(杂)芳基乙二醛的酶促分子内 Cannizzaro 反应高度对映选择性合成L -α-羟基羧酸 ( L -αHCAs)。结合使用乙二醛酶 I 和 II 的D -αHCAs 优化合成,该方法提供了一种通用的、可扩展的且操作简单的方法,以中等至优异的产率和一致的高对映选择性获得 α-羟基酸的两种对映体。
Synthesis and enzymatic resolution of a new class of alicyclic and heterocyclic mandelic acidderivatives was described. The method relied on the preparation of cyanohydrins from the commercially available aldehydes followed by hydrolysis to corresponding racemic hydroxy esters that were used in the resolution with the enzyme. An alternative approach was proposed for compounds that were not suitable