Beta-1,4Galactosyltransferase and beta-galactosidase have been investigated with regard to their acceptor specificity and used in the synthesis of galactosides using 5-thioglucose, deoxyazaglucose, glucal, modified N-acetylglucosamine and glucose derivatives as acceptors.
Bhattacharya, A; Ali, E, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1992, vol. 31, # 12, p. 898 - 899
作者:Bhattacharya, A、Ali, E
DOI:——
日期:——
Enzymatic glycosylation using 6-O-acylated sugar donors and acceptors: β-N-acetylhexosaminidase-catalysed synthesis of 6-O,N,N′-triacetylchitobiose and 6′-O,N,N′-triacetylchitobiose
p-Nitrophenyl 6-O-acetyl-2-acetamido-2-deoxy-beta -D-glucopyranoside (5a) was used as the glycosyl donor in a beta -N-acetylhexosaminidase-catalysed (from Penicillium brasilianum) glycosylation of GlcNAc yielding 6'-O,N,N'-triacetylchitobiose (6), while 6-O-acetyl-2-acetamido-2-deoxy-beta -D-glucopyranose (3a) served as a selectively protected acceptor in a transglycosylation reaction catalysed by the same enzyme to yield 6-O,N,N'-triacetylchitobiose (4). (C) 2001 Elsevier Science Ltd. All rights reserved.