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Enzymatic optical resolution of norbornanecarboxylic esters using pig liver esterase. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19911100508] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Elferink VHM, Breitgoff D, Kloosterman M, Kamphuis J, van den Tweel WJJ, Meijer EM. Industrial developments in biocatalysis. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19911100302] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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3
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Bornemann S, Cassells JM, Dordick JS, Hacking AJ. The Use of Enzymes to Regioselectively Deacylate Sucrose Esters. ACTA ACUST UNITED AC 2009. [DOI: 10.3109/10242429209003657] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- S. Bornemann
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK
- Tate & Lyle Group Research &Technology, PO Box 68, Reading, Berks, RG6 2BX, United Kingdom
| | - J. M. Cassells
- The Technology Partnership, Melbourn Science Park, Cambridge Road, Melbourn, Royston, Herts, SG8 6EE, UK
- Tate & Lyle Group Research &Technology, PO Box 68, Reading, Berks, RG6 2BX, United Kingdom
| | - J. S. Dordick
- Department of Chemical and Biochemical Engineering, University of Iowa, Iowa City, Iowa, 52242, USA
- Tate & Lyle Group Research &Technology, PO Box 68, Reading, Berks, RG6 2BX, United Kingdom
| | - A. J. Hacking
- Dextra Laboratories Ltd., Innovation Centre, PO Box 68, Reading, RG6 2BX, UK
- Tate & Lyle Group Research &Technology, PO Box 68, Reading, Berks, RG6 2BX, United Kingdom
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Crout DHG, Dachs AM, Glover SE, Hutchinson DW. Regioselective Enzymatic Hydrolysis of 3′,5′-DI-O-Acetylthymidine and Observation of a Surface Effect Due to Polystyrene. ACTA ACUST UNITED AC 2009. [DOI: 10.3109/10242429008992089] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- David H. G. Crout
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, England, UK
| | - Alicia M. Dachs
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, England, UK
| | - Susan E. Glover
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, England, UK
| | - David W. Hutchinson
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, England, UK
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Kazlauskas RJ, Bornscheuer UT. Biotransformations with Lipases. BIOTECHNOLOGY 2008:36-191. [PMID: 0 DOI: 10.1002/9783527620906.ch3] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
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6
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Ciuffreda P, Ronchetti F, Toma L. Acylation of 6-Deoxy-L-Hexoses: Regioselectivity in the Enzymatic Transesterification as Compared to Chemical Esterification. J Carbohydr Chem 2008. [DOI: 10.1080/07328309008545804] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Pierangela Ciuffreda
- a Dipartimento di Chimica e Biochimica Medica , Università di Milano , Via Saldini 50 , 20133 Milano , Italy
- b Dipartimento di Chimica e Biochimica Medica , Università di Milano , Via Saldini 50 , 20133 Milano , Italy
- c Dipartimento di Chimica e Biochimica Medica , Università di Milano , Via Saldini 50 , 20133 Milano , Italy
| | - Fiamma Ronchetti
- a Dipartimento di Chimica e Biochimica Medica , Università di Milano , Via Saldini 50 , 20133 Milano , Italy
- b Dipartimento di Chimica e Biochimica Medica , Università di Milano , Via Saldini 50 , 20133 Milano , Italy
- c Dipartimento di Chimica e Biochimica Medica , Università di Milano , Via Saldini 50 , 20133 Milano , Italy
| | - Lucio Toma
- a Dipartimento di Chimica e Biochimica Medica , Università di Milano , Via Saldini 50 , 20133 Milano , Italy
- b Dipartimento di Chimica e Biochimica Medica , Università di Milano , Via Saldini 50 , 20133 Milano , Italy
- c Dipartimento di Chimica e Biochimica Medica , Università di Milano , Via Saldini 50 , 20133 Milano , Italy
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Chevallier OP, Migaud ME. Investigation of acetyl migrations in furanosides. Beilstein J Org Chem 2006; 2:14. [PMID: 16859550 PMCID: PMC1592296 DOI: 10.1186/1860-5397-2-14] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2006] [Accepted: 07/21/2006] [Indexed: 11/28/2022] Open
Abstract
Standard reaction conditions for the desilylation of acetylated furanoside (riboside, arabinoside and xyloside) derivatives facilitate acyl migration. Conditions which favour intramolecular and intermolecular mechanisms have been identified with intermolecular transesterifications taking place under mild basic conditions when intramolecular orthoester formations are disfavoured. In acetyl ribosides, acyl migration could be prevented when desilylation was catalysed by cerium ammonium nitrate.
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Affiliation(s)
- O P Chevallier
- School of Chemistry and Chemical Engineering, Queen's University, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, Northern Ireland, UK
| | - M E Migaud
- School of Chemistry and Chemical Engineering, Queen's University, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, Northern Ireland, UK
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Mastihubová M, Szemesová J, Biely P. The acetates of p-nitrophenyl α-l-arabinofuranoside—Regioselective preparation by action of lipases. Bioorg Med Chem 2006; 14:1805-10. [PMID: 16288881 DOI: 10.1016/j.bmc.2005.10.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2005] [Revised: 10/10/2005] [Accepted: 10/18/2005] [Indexed: 11/18/2022]
Abstract
All possible di-O-acetates and mono-O-acetates of p-nitrophenyl alpha-L-arabinofuranoside were prepared by chemoenzymatic way using lipases. The 2,3-di-O-acetate was obtained in 90% yield by deacetylation of the primary acetyl group of per-O-acetylated p-nitrophenyl alpha-L-arabinofuranoside by Candida cylindracea lipase (CCL) or Candida rugosa lipase (LAY). The 2,5- and 3,5-di-O-acetates were obtained by acetylation of p-nitrophenyl alpha-L-arabinofuranoside by Pseudomonas cepacia lipase (LPS-30) in organic solvents. The 5-O-acetate was regioselectively synthesised in 95% yield by acetylation of p-nitrophenyl alpha-L-arabinofuranoside catalysed by porcine pancreas lipase. Finally, the 2- and 3-O-acetates of p-nitrophenyl alpha-L-arabinofuranoside were obtained in two steps. The enzymatic di-O-acetylation of p-nitrophenyl alpha-L-arabinofuranoside by LPS-30 was followed by enzymatic hydrolysis of the primary acetyl group by CCL or LAY.
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Affiliation(s)
- Mária Mastihubová
- Institute of Chemistry, Slovak Academy of Sciences, SK-845 38 Bratislava, Slovakia.
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Levoirier E, Canac Y, Norsikian S, Lubineau A. Indium-promoted Barbier-type allylations in aqueous media: a convenient approach to 4-C-branched monosaccharides and (1→4)-C-disaccharides. Carbohydr Res 2004; 339:2737-47. [PMID: 15542083 DOI: 10.1016/j.carres.2004.09.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2004] [Accepted: 09/22/2004] [Indexed: 11/23/2022]
Abstract
Starting from methyl 6-bromo-4,6-dideoxy-alpha-D-threo-4-enopyranoside, 4-C-branched sugars have been prepared through indium-promoted Barbier-type allylation of various aldehydes in aqueous media followed by hydroboration of the resulting double bond. The intermediate unsaturated monosaccharides were shown to rearrange in acidic media to give 4-C-acetyl-5-C-alkyl pyranose compounds. From beta-1-formyl sugars the corresponding beta-(1-->4)-C-disaccharides were obtained.
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Affiliation(s)
- Eric Levoirier
- Laboratoire de Chimie Organique Multifonctionnelle, associé au CNRS (UMR 8614), Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Université Paris-Sud, Bât. 420, F-91405 Orsay, France
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Affiliation(s)
- D Kadereit
- Institut für Organische Chemie, Universität Karlsruhe, Richard-Willstätter-Allee 2, D-76128 Karlsruhe, Germany
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Vogel C, Kramer S, Ott AJ. Galacturonic Acid Derivatives, IX. Regioselective Enzymatic Acetyl Ester Hydrolysis ofD-Galacturonic Acid Derivatives and Related Reactions. European J Org Chem 1997. [DOI: 10.1002/jlac.199719970720] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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12
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Affiliation(s)
- Yao-Chang Xu
- CNS Division, Lilly Research Laboratories, Lilly Corporate Center, Indianapolis, Indiana 46285
| | - Amsalu Bizuneh
- CNS Division, Lilly Research Laboratories, Lilly Corporate Center, Indianapolis, Indiana 46285
| | - Clint Walker
- CNS Division, Lilly Research Laboratories, Lilly Corporate Center, Indianapolis, Indiana 46285
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Yao-Chang X, Bizuneh A, Walker C. Selective deprotection of alkyl esters using magnesium methoxide. Tetrahedron Lett 1996. [DOI: 10.1016/0040-4039(95)02197-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Reidel A, Waldmann H. Enzymatic Protecting Group Techniques in bioorganic synthesis. ACTA ACUST UNITED AC 1993. [DOI: 10.1002/prac.19933350202] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Braun P, Waldmann H, Vogt W, Kunz H. Selektive enzymatische Schutzgruppenabspaltungen: Der n-Heptylester als Carboxylschutzgruppe in der Peptidsynthese. ACTA ACUST UNITED AC 1991. [DOI: 10.1002/jlac.199119910130] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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16
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Perdeuterioacetylation with combined NMR and MS analysis as a method for determining the evolution of individual hydrolysis products during regioselective enzymatic hydrolysis of glucose pentaacetate. Catal Letters 1991. [DOI: 10.1007/bf00769084] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Veeraragavan K, Colpitts T, Gibbs BF. Purification and characterization of two distinct lipases from Geotrichum candidum. BIOCHIMICA ET BIOPHYSICA ACTA 1990; 1044:26-33. [PMID: 2340308 DOI: 10.1016/0005-2760(90)90214-i] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Lipase, an enzyme that hydrolyzes triacylglycerol, has been purified and characterized. The purification procedure includes ethanol precipitation and chromatographies on Sephacryl-200 HR, high resolution anion-exchange (mono Q) and Polybuffer exchanger 94. With this procedure, two forms of lipases from Geotrichum candidum were obtained. Lipase I (main enzyme) and lipase II (minor enzyme) were purified 35-fold with a 62% recovery in activity and 94-fold with a 18% recovery in activity, respectively. Their molecular weights have been estimated by polyacrylamide gel electrophoresis under denaturing conditions and by molecular sieving under native conditions at 56,000. Lipase I and II had optimum pH values of 6.0 and 6.8 and isoelectric points of 4.56 and 4.46, respectively. The enzymes are stable at a pH range of 6.0 to 8.0. Monovalent ions had little effect on both enzyme activities, while divalent ions at concentrations above 50 mM inhibited the lipase activities in a concentration-dependent manner. Sodium dodecyl sulfate at a concentration lower than 10 mM completely inhibited the lipase activity.
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Affiliation(s)
- K Veeraragavan
- Protein Engineering Section, National Research Council of Canada, Montreal
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Kloosterman M, Weijnen JGJ, De Vries NK, Mentech J, Caron I, Descotes G, Schoemaker HE, Meijer EM. Octa-O-Acetyl-Sucrose: Regioselective Deacetylations by Lipolytic Enzymes. J Carbohydr Chem 1989. [DOI: 10.1080/07328308908048031] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kloosterman M, De Nijs MP, Weijnen JGJ, Schoemaker HE, Meijer EM. Regioselective Hydrolysis of Carbohydrate Secondary Acyl Esters By Lipases1. J Carbohydr Chem 1989. [DOI: 10.1080/07328308908048563] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Waldmann H. Der Phenylacetyl-(PhAc-)Rest als enzymatisch ablösbare Schutzgruppe für Peptide und Kohlenhydrate: Selektive Schutzgruppenabspaltungen mit Penicillin-Acylase. ACTA ACUST UNITED AC 1988. [DOI: 10.1002/jlac.198819881212] [Citation(s) in RCA: 33] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Czuk R, Glänzer BI. Deacetylation of α-acetoxy-furanurono-6,3-lactones by lipases and lyophilised yeast. Carbohydr Res 1987. [DOI: 10.1016/0008-6215(87)80033-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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