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Some findings in transgalactosylations employing modified donor substrates. Carbohydr Res 2014; 398:8-12. [DOI: 10.1016/j.carres.2014.08.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Revised: 07/31/2014] [Accepted: 08/09/2014] [Indexed: 11/23/2022]
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2
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Khatami S, Zokaee Ashtiani F, Bonakdarpour B, Mehrdad M. The enzymatic production of lactulose via transglycosylation in conventional and non-conventional media. Int Dairy J 2014. [DOI: 10.1016/j.idairyj.2013.07.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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3
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Abstract
We have developed a synthetic route to the frequently utilized deoxysugar building block di-O-acetyl-D-rhamnal originating from the inexpensive starting material methyl α-D-glucopyranoside. Our approach proceeds in five steps with minimal column chromatography purification needed to afford the title compound in good overall yield. 2009 Elsevier Ltd. All rights reserved.
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Affiliation(s)
- Justin N. Miller
- Department of Chemistry, Sewanee: The University of the South, 735 University Avenue, Sewanee, TN 37383-1000, USA
| | - Rongson Pongdee
- Department of Chemistry, Sewanee: The University of the South, 735 University Avenue, Sewanee, TN 37383-1000, USA
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4
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5
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Heidecke CD, Parsons TB, Fairbanks AJ. Endohexosaminidase-catalysed glycosylation with oxazoline donors: effects of organic co-solvent and pH on reactions catalysed by Endo A and Endo M. Carbohydr Res 2009; 344:2433-8. [PMID: 19889401 DOI: 10.1016/j.carres.2009.09.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2009] [Revised: 09/07/2009] [Accepted: 09/13/2009] [Indexed: 10/20/2022]
Abstract
The synthetic efficiency of endohexosaminidase-catalysed glycosylation reactions using N-glycan oxazolines as donors was investigated as two reaction parameters were varied. Both the addition of quantities of an organic co-solvent and modulation of reaction pH between 6.5 and 8.0 were found to have different effects on reactions catalysed by either Endo A (and two available mutants) or Endo M, indicating subtle differences between these two family GH85 enzymes. Fine tuning of reaction pH, or the addition of quantities of an organic co-solvent, resulted in beneficial increases in achievable synthetic efficiency by effecting a reduction in the rate of competitive hydrolytic processes.
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Affiliation(s)
- Christoph D Heidecke
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, UK
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6
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Trincone A, Pagnotta E, Giordano A, Perugino G, Rossi M, Moracci M. Enzymatic Synthesis of 2-Deoxyglycosides Using the ß-Glycosidase of the ArchaeonSulfolobus solfataricus. BIOCATAL BIOTRANSFOR 2009. [DOI: 10.1080/1024242031000076224] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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7
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Enzymatic synthesis of α-2-deoxyglucosyl derivatives catalyzed by organic solvent-resistant α-glucosidase. BIOTECHNOL BIOPROC E 2008. [DOI: 10.1007/s12257-008-0057-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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8
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9
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Prodanović RM, Milosavić NB, Sladić D, Velicković TC, Vujcić Z. Synthesis of hydroquinone-alpha-glucoside by alpha-glucosidase from baker's yeast. Biotechnol Lett 2005; 27:551-4. [PMID: 15973488 DOI: 10.1007/s10529-005-2880-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2004] [Revised: 02/14/2005] [Accepted: 02/15/2005] [Indexed: 11/24/2022]
Abstract
Hydroquinone-alpha-glucoside was synthesised from hydroquinone and maltose as glucosyl donor by transglucosylation in a water system with alpha-glucosidase from baker's yeast. Only one phenolic -OH group was alpha-anomer-selectively glucosylated. The optimum conditions for transglucosylation reaction were at 30 degrees C for 20 h with 50 mM: hydroquinone and 1.5 M: maltose in 100 mM: sodium citrate/phosphate buffer at pH 5.5. The glucoside was obtained at 0.6 mg/ml with a 4.6% molar yield with respect to hydroquinone.
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Affiliation(s)
- Radivoje M Prodanović
- Department of Biochemistry, Faculty of Chemistry, University of Belgrade, Studentski trg 12, 11000, Belgrade, Serbia and Montenegro.
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Prodanović R, Milosavić N, Sladić D, Zlatović M, Božić B, Veličković TĆ, Vujčić Z. Transglucosylation of hydroquinone catalysed by α-glucosidase from baker's yeast. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.molcatb.2005.06.011] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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11
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Kim YM, Okuyama M, Mori H, Nakai H, Saburi W, Chiba S, Kimura A. Enzymatic synthesis of alkyl α-2-deoxyglucosides by alkyl alcohol resistant α-glucosidase from Aspergillus niger. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.tetasy.2004.11.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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12
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Affiliation(s)
- Robert J Ferrier
- Industrial Research Ltd., P.O. Box 31 310, Lower Hutt, New Zealand
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13
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Trincone A, Pagnotta E, Rossi M, Mazzone M, Moracci M. Enzymatic synthesis of 2-deoxy-β-glucosides and stereochemistry of β-glycosidase from Sulfolobus solfataricus on glucal. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s0957-4166(01)00491-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Yoon JH, Rhee JS. The efficient enzymatic synthesis of N-acetyllactosamine in an organic co-solvent. Carbohydr Res 2000; 327:377-83. [PMID: 10990022 DOI: 10.1016/s0008-6215(00)00063-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In the presence of beta-galactosidase from Bifidobacterium bifidum, N-acetyllactosamine was synthesized in significantly enhanced yield compared with earlier routes. Different proportions of the (1-->4)- and (1-->6)-linked forms were obtained depending on the choice of enzyme and reaction conditions, viz. the nature of added organic co-solvent (20-80% of 2-ethoxy ethyl ether, trimethyl phosphate, or acetone). The beta-(1-->4)-linked disaccharide was the major product and the beta-(1-->6)-linked disaccharide was the minor product. With beta-galactosidases from P. multicolor, A. oryzae, B. longum the beta-(1-->6) linkage was exclusively synthesized. Procedures for optimising the yield of N-acetyllactosamine are discussed. An immobilized enzyme on a nylon powder column was used for the efficient recycling of enzyme and synthesizing the disaccharide.
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Affiliation(s)
- J H Yoon
- Korea Advanced Institute of Science and Technology, Department of Biological Sciences, Taejon, South Korea.
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van Rantwijk F, Woudenberg-van Oosterom M, Sheldon R. Glycosidase-catalysed synthesis of alkyl glycosides. ACTA ACUST UNITED AC 1999. [DOI: 10.1016/s1381-1177(99)00042-9] [Citation(s) in RCA: 241] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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17
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Finch P, Yoon JH. The effects of organic solvents on the synthesis of galactose disaccharides using β-galactosidases. Carbohydr Res 1997. [DOI: 10.1016/s0008-6215(97)00182-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Fernández-Mayoralas A. Synthesis and modification of carbohydrates using glycosidases and lipases. Top Curr Chem (Cham) 1997. [DOI: 10.1007/bfb0119217] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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19
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Kimura T, Takayama S, Huang H, Wong CH. Eine praktikable Synthese vonN-Acetyl-D-lactosamin mit Galactose-Oxidase und β-Galactosidase. Angew Chem Int Ed Engl 1996. [DOI: 10.1002/ange.19961082010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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20
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Vic G, Hastings JJ, Crout DH. Glycosidase-catalysed synthesis of glycosides by an improved procedure for reverse hydrolysis: application to the chemoenzymatic synthesis of galactopyranosyl-(1→4)-O-α-galactopyranoside derivatives. ACTA ACUST UNITED AC 1996. [DOI: 10.1016/0957-4166(96)00238-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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21
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Michael K, Kessler H. Michael-type additions in the synthesis of α-O- and -S-2-deoxyglycosides. Tetrahedron Lett 1996. [DOI: 10.1016/0040-4039(96)00616-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Evers B, Thiem J. Synthesis of 2-Deoxy-maltooligosaccharides with Phosphorylase and Their Degradation with Amylases. STARCH-STARKE 1995. [DOI: 10.1002/star.19950471107] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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23
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Digestive juice of Achatina achatina as a potential source of transglycosylation enzymes. ACTA ACUST UNITED AC 1994. [DOI: 10.1016/0020-711x(94)90152-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Bay S, Namane A, Cantacuzene D. Enzymatic synthesis of disaccharide-serine and peptide conjugates. Bioorg Med Chem Lett 1993. [DOI: 10.1016/s0960-894x(01)80708-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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López R, Fernández-Mayoralas A. Controlling yield and regioselectivity in the enzymatic synthesis of β-D-galactopyranosyl-β-D-xylopyranosides. Tetrahedron Lett 1992. [DOI: 10.1016/s0040-4039(00)79118-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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26
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Look GC, Wong CH. A facile enzymatic synthesis of galβ1,3glucal: a key intermediate for the synthesis of Lea and sialyl Lea. Tetrahedron Lett 1992. [DOI: 10.1016/s0040-4039(00)74231-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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27
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