1.1: pyridine / 50 °C 2.1: acetyl chloride / methanol / 0 - 20 °C / |Inert atmosphere 3.1: potassium carbonate; tetra(n-butyl)ammonium hydrogensulfate / water; dichloromethane / 20 °C 4.1: sodium methylate / methanol 4.2: Amberlite IR-120 (H+) resin View Scheme

T=37°C; MnCl2, NaCl, CTP, Triton X-100, sialyltransferase; Yield given. Yields of byproduct given. Title compound not separated from byproducts;