allyl (4,6-di-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl)-(1->3)-2,4,6-tri-O-acetyl-α-L-galactopyranoside 在
sulfur trioxide trimethylamine 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 48.0h,
以82%的产率得到allyl (sodium 4,6-di-O-acetyl-2-deoxy-2-phthalimido-3-O-sulfonato-β-D-glucopyranosyl)-(1->3)-2,4,6-tri-O-acetyl-α-L-galactopyranoside