2-(trimethylsilyl)ethyl 2,3,6-tri-O-benzoyl-4-S-(2,3,4,6-tetra-O-acetyl-α-D-galactopyranosyl)-4-thio-β-D-galactopyranoside 在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 5.33h,
以85%的产率得到(2R,3R,4S,5R,6R)-2-[(2R,3R,4R,5R,6R)-4,5-Dihydroxy-2-hydroxymethyl-6-(2-trimethylsilanyl-ethoxy)-tetrahydro-pyran-3-ylsulfanyl]-6-hydroxymethyl-tetrahydro-pyran-3,4,5-triol