2-(trimethylsilyl)ethyl 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-galactopyranoside 在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 4.0h,
以99%的产率得到2-[(2R,3R,4R,5R,6R)-4,5-Dihydroxy-6-hydroxymethyl-2-(2-trimethylsilanyl-ethoxy)-tetrahydro-pyran-3-yl]-isoindole-1,3-dione