(<i>S</i>
)-Selectivity in Phenylacetyl Carbinol Synthesis Using the Wild-Type Enzyme Acetoin:Dichlorophenolindophenol Oxidoreductase from <i>Bacillus licheniformis</i>
作者:Pier Paolo Giovannini、Lindomar Alberto Lerin、Michael Müller、Giovanni Bernacchia、Morena De Bastiani、Martina Catani、Graziano Di Carmine、Alessandro Massi
DOI:10.1002/adsc.201600359
日期:2016.9.1
well known biocatalysts for the asymmetric synthesis of α‐hydroxy ketones with preferential (R)‐selectivity. Pharmaceutically relevant phenylacetyl carbinol (PAC) has been prepared with absolute (S)‐configuration only on a few occasions using enzyme variants suitably designed through rational site‐directed mutagenesis approaches. Herein, we describe the synthesis of (S)‐phenylacetyl carbinol products with
TCA Cycle Involved Enzymes SucA and Kgd, as well as MenD: Efficient Biocatalysts for Asymmetric C–C Bond Formation
作者:Maryam Beigi、Simon Waltzer、Alexander Fries、Lothar Eggeling、Georg A. Sprenger、Michael Müller
DOI:10.1021/ol3031186
日期:2013.2.1
Asymmetric mixed carboligation reactions of α-ketoglutarate with different aldehydes were explored with the thiamine diphosphate dependent enzymes SucA from E. coli, Kgd from Mycobacterium tuberculosis, and MenD from E. coli. All three enzymes proved to be efficient biocatalysts to selectively deliver chiral δ-hydroxy-γ-keto acids with moderate to excellent stereoselectivity. The high regioselectivity
Biocatalytic Route to Chiral Acyloins: P450-Catalyzed Regio- and Enantioselective α-Hydroxylation of Ketones
作者:Rubén Agudo、Gheorghe-Doru Roiban、Richard Lonsdale、Adriana Ilie、Manfred T. Reetz
DOI:10.1021/jo502397s
日期:2015.1.16
monooxygenase generated by directed evolution are excellent catalysts for the oxidative α-hydroxylation of ketones with formation of chiral acyloins with high regioselectivity (up to 99%) and enantioselectivity (up to 99% ee). This constitutes a new route to a class of chiral compounds that are useful intermediates in the synthesis of many kinds of biologically active compounds.
Pyruvate decarboxylase: a new enzyme for the production of acyloins by biotransformation
作者:Vladimír Křen、David H. G. Grout、Howard Dalton、David W. Hutchinson、Wilfred König、Margaret M. Turner、Gregory Dean、Nicholas Thomson
DOI:10.1039/c39930000341
日期:——
Highly purified pyruvate decarboxylase from yeast has been shown to catalyse the condensation between pyruvate and a wide range of substituted benzaldehydes to give hydroxyketones (acyloins) of the same (R) enantiomeric series and of high optical purity, as determined by chiral GC using novel cyclodextrin-based stationary phases.
(S)-Phenylacetylcarbinol [(S)-PAC] and its derivatives are valuable intermediates for the synthesis of various APIs (active pharmaceutical ingredients), however their selective synthesis is challenging. As no highly selective enzymes or chemical...
(S)-苯基乙酰基甲醇[[ S ] -PAC ]及其衍生物是合成各种API(活性药物成分)的有价值的中间体,但是它们的选择性合成具有挑战性。由于没有高度选择性的酶或化学物质...