@article {1311455, title = {Practical Enzyme-Based Syntheses of Uridine 5{\textquoteright}-Diphosphogalactose (UDP-Gal) and Uridine 5{\textquoteright}-Diphospho-N-acetylgalactosamine (UDP-GalNAc) on Gram Scale}, journal = {J. Org. Chem.}, volume = {57}, year = {1992}, note = {332}, pages = {152-157}, author = {Heidlas, J. E. and Lees, W. J. and Whitesides, G. M.} }