N-Octanoyldimethylglycine Trifluoroethyl Ester, an Acyl Donor Leading to Highly Enantioselective Protease-Catalysed Kinetic Resolution of Amines
作者:Severine Queyroy、Nicolas Vanthuyne、Stéphane Gastaldi、Michèle P. Bertrand、Gérard Gil
DOI:10.1002/adsc.201100993
日期:2012.6.18
The use of N‐octanoyldimethylglycine trifluoroethylester as acyldonor in the kineticresolution of aliphatic amines catalysed by proteases led to enantiomeric ratios >200 in most cases. The resolutions mediated by Protex 6L were shown to be much faster than the resolutions achieved with the most efficient commercially available serine proteases, i.e., alkaline protease, Properase 1600L, and Subtilisin
Proteases screening for the kinetic resolution of amines with N-acyl α-amino acid trifluoromethyl esters: automated docking approach of binding energies using Subtilisin Novo as a prototype for serine proteases
作者:Anne-Lise Bottalla、Séverine Queyroy、Nadia Azzi-Schue、Nicolas Vanthuyne、Stéphane Gastaldi、Michèle P. Bertrand、Gérard Gil
DOI:10.1016/j.tetasy.2009.11.013
日期:2009.12
The screening of a panel of 17 proteases resulted in the selection of 4 serine proteases for the resolution of 3-amino-1-phenylbutane. The latter were used to determine the best acyl donor from a series of N-acyl alpha-amino acid trifluoroethyl esters selected as peptide mimetics (E factor up to 99). The results were correlated to an automated docking determination of their binding affinities for Subtilisin Novo. (C) 2009 Elsevier Ltd. All rights reserved.
Switching from (R)- to (S)-selective chemoenzymatic DKR of amines involving sulfanyl radical-mediated racemization
作者:Lahssen El Blidi、Nicolas Vanthuyne、Didier Siri、Stéphane Gastaldi、Michèle P. Bertrand、Gérard Gil
DOI:10.1039/c0ob00054j
日期:——
Chemoenzymatic dynamic kinetic resolution (DKR) of amines involving sulfanyl radical-induced racemization happened to be the very first switchable DKR process allowing the synthesis of either (R)- or (S)-amides, in good yield and high enantiomeric excess, depending on the nature of the enzyme; the different steps of the development of (S)-selective DKR are discussed.