Abstract
5'-O-beta-D-Galactosyl-floxuridine, a potential novel prodrug, was synthesized with a yield of 75% through beta-galactosidase-catalyzed transgalactosylation. This enzyme displayed absolute regioselectivity toward the 5'-position of floxuridine. For the reaction, the optimal conditions were pH 6.5 at 45 degrees C for 60 h with floxuridine to o-nitrophenyl-beta-D-galactoside at 2:1 (mol/mol). Under these conditions, the initial reaction rate and the maximum yield were 0.28 mM h(-1) and 75%, respectively.
Publication types
-
Research Support, Non-U.S. Gov't
MeSH terms
-
Animals
-
Cattle
-
Enzyme Stability
-
Floxuridine / chemistry
-
Floxuridine / metabolism*
-
Hydrogen-Ion Concentration
-
Kinetics
-
Liver / enzymology*
-
Nitrophenylgalactosides / metabolism
-
Prodrugs / chemistry
-
Prodrugs / metabolism
-
Substrate Specificity
-
Temperature
-
Time Factors
-
beta-Galactosidase / isolation & purification*
-
beta-Galactosidase / metabolism*
Substances
-
Prodrugs
-
Floxuridine
-
2-nitrophenylgalactoside
-
Nitrophenylgalactosides
-
beta-Galactosidase