- Enzymatic properties and transglycosylation of α-galactosidase from Penicillium oxalicum so
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Penicillium oxalicum SO α-galactosidase demonstrated weak hydrolysing activity but a high rate of transglycosylation in the reaction with melibiose, where the major product was 6-α-galactosyl melibiose. The transfer ratio was 83.6% and was maintained over
- Kurakake, Masahiro,Moriyama, Youichirou,Sunouchi, Riku,Nakatani, Shinya
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experimental part
p. 177 - 182
(2011/08/07)
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- Synthesis of glycosyl glycerols and related glycolipids
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Several isomeric glycosyl glycerols were synthesized. Acetylated allyl glycosides of D-glucose and D-galactose were transformed into 1-O-(glycopyranosyl)-rac-glycerols in a three step procedure via the corresponding 2,3-epoxypropyl glycosides and the peracetylated glycosyl glycerols. Tetra-O-benzyl-D-glucose was glycosylated with 1,3-di-O-benzylglycerol to give the α-anomer preferentially. The 2-O-(tetra-O-acetyl-β-glycopyranosyl)-sn-glycerols and 2-O-(β-glycopyranosyl)-sn-glycerols of D-glucose, D-galactose and N-acetyl-D-glucosamine and the corresponding α-derivatives of D-mannose were synthesized by selective glycosylation methods from 1,3-di-O-benzylglycerol and 1,3-O-benzylideneglycerol, respectively, and activated sugar compounds followed by hydrogenolysis. After long chain acylation and selective deacetylation the 1,3-di-O-acyl-2-O-β-glycopyranosyl)-sn-glycerols of D-glucose, D-galactose and N-acetyl-D-glucosamine and the corresponding α-derivative of D-mannose were synthesized.
- Suhr, Rene,Scheel, Oliver,Thiem, Joachim
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p. 937 - 968
(2007/10/03)
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