乙酸酐 、 (2R,3R,4S,5R,6R)-2-[(2R,3R,4R,5R,6R)-4,5-Dihydroxy-2-methyl-6-(2-trimethylsilanyl-ethoxy)-tetrahydro-pyran-3-yloxy]-6-hydroxymethyl-tetrahydro-pyran-3,4,5-triol 在
吡啶 作用下,
反应 18.0h,
生成
2-(Trimethylsilyl)ethyl 2,3-di-O-acetyl-4-O-(2,3,4,6-tetra-O-acetyl-α-D-galactopyranosyl)-β-D-galactopyranoside