Development of an Acid-Washable Tag for the Separation of Enantiomers from Bioresolutions
作者:Maude Brossat、Thomas S. Moody、Florian de Nanteuil、Stephen J. C. Taylor、Fatima Vaughan
DOI:10.1021/op900028d
日期:2009.7.17
A separation tool involving the use of a vinyl ester amino acid as acyl donor in a bioresolution has been developed. The acid-washable acyl group acts as a removable tag, facilitating separation of the secondary alcohol from the bioresolution product mixture. The use of these acyl donors from cheap, commercially available amino acids has been demonstrated in conjunction with the hydrolase enzyme Candida
A simplified method for the production of vinyl glycine (2-aminobut-3-enioc acid) and a convenient resolution of a derivative
申请人:Hoechst Schering AgrEvo GmbH
公开号:EP0559927A1
公开(公告)日:1993-09-15
The invention relates to a three-step synthesis of vinyl glycine (1) using a cheap, commercially available starting material (3-butenenitrile (2)) and using cheap, simple reagents. Also disclosed is a convenient optical resolution of the N-tert.butyloxycarbonyl derivative by papain-catalysed enantioselective esterification in a two-phase system.
Lipase-mediated enantioselective acylation of alcohols with functionalized vinyl esters: acyl donor tolerance and applications
作者:Robert Chênevert、Nicholas Pelchat、Pierre Morin
DOI:10.1016/j.tetasy.2009.03.027
日期:2009.6
Enzymatic acylation is commonly used for the kinetic resolution of alcohols and amines. The simple acyl group introduced during the enzymatic reaction is Usually removed or replaced by another group. Retention of more complex acyl moieties as part of the target structures would be a more efficient strategy. We have studied the enantioselective acylation of a model alcohol substrate, 1-phenylethanol, with vinyl esters bearing various functionality on the acyl moieties in the presence of three lipases (Candida antarctica, Candida rugosa and Burkholderia cepacia) frequently used in organic synthesis. C. antarctica lipase is the most versatile lipase for this type of biotransformations. We applied this strategy to the synthesis of a protein kinase C ligand and a natural product, phoracantholide. (C) 2009 Elsevier Ltd. All rights reserved.
DEGRADABLE POLYCATIONS DERIVED FROM AMINO ACID VINYL ESTERS
申请人:Wisconsin Alumini Research Foundation
公开号:US20130184423A1
公开(公告)日:2013-07-18
Described herein are the synthesis and polymerization of a series of N-Boc-protected amino acid vinyl ester (BAAVE) monomers. Homopolymers and heteropolymers containing the monomers are described, particularly heteropolymers with vinyl ester monomers such as vinyl acetate. Deprotection can be used to produce hydrophilic and hydrophobic polymers that are particular useful in biological applications such as cellular delivery of biological materials.