Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
A new approach to galacto‐oligosaccharides and galacto‐conjugates synthesis performed by the
β‐galactosidase from Kluyveromyces lactisis reported. The enzymatic galactosylation of eight kinds of adsorbed aromatic primary alcohols, in particular the two drugs guaifenesin and chlorphenesin, gave the corresponding β‐d‐galacto‐pyranosides in yields ranging between approximately 10% and 96%. For the first time, we have showed that the adsorption of acceptor substrates onto solid supports such as silica gel influences the yield and the selectivity of galacto‐conjugates synthesis. In particular, we observed that adsorption of acceptor favored the synthesis of digalactosylated compounds.