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Chemoenzymatic synthesis of ethyl 1-thio-(beta-D-galactopyranosyl)O-beta-D-glycopyranosyl disaccharides using the beta-galactosidase from Bacillus circulans.
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UNSPECIFIED (1996) Chemoenzymatic synthesis of ethyl 1-thio-(beta-D-galactopyranosyl)O-beta-D-glycopyranosyl disaccharides using the beta-galactosidase from Bacillus circulans. TETRAHEDRON-ASYMMETRY, 7 (3). pp. 709-720. ISSN 0957-4166.
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Abstract
Different ethyl 1-thio-beta-D-disaccharides have been synthesised by transgalactosylation using the beta-galactosidase from Bacillus circulans as biocatalyst. This beta-galactosidase shows mainly a beta-1-4 specificity in the galactosyl transfer. Gal-beta-(1-4)-O-beta-D-GlcSEt 15 was obtained in 36% yield, Gal-beta-(1-4)-O-alpha-D-GlcSEt 19 in 30% yield, Gal-beta-(1-4)-O-beta-D-GalSEt 17 in 60% yield, Gal-beta-(1-4)-O-beta-D-GalNAcSEt 20 in 49% yield, Gal-beta-(1-4)-O-beta-D-Gal-beta-(1-4)-O-beta-D-GalNAcSEt 21 in 9% yield, Gal-beta-(1-6)-O-beta-D-GlcSEt 16 in 3% yield and Gal-beta-(1-3)-O-beta-D-XylSEt 25% yield. (C) 1996 Elsevier Science Ltd
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QD Chemistry | ||||
Journal or Publication Title: | TETRAHEDRON-ASYMMETRY | ||||
Publisher: | PERGAMON-ELSEVIER SCIENCE LTD | ||||
ISSN: | 0957-4166 | ||||
Official Date: | March 1996 | ||||
Dates: |
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Volume: | 7 | ||||
Number: | 3 | ||||
Number of Pages: | 12 | ||||
Page Range: | pp. 709-720 | ||||
Publication Status: | Published |
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