乙酸酐 、 (2R,3R,4R,5R,6R)-6-((2S,3S,4S,5R)-3,4-Dihydroxy-2,5-bis-hydroxymethyl-tetrahydro-furan-2-yloxy)-2-hydroxymethyl-3-methyl-tetrahydro-pyran-3,4,5-triol 在
4-二甲氨基吡啶 作用下,
以
吡啶 为溶剂,
反应 36.0h,
生成
2,3,4,6-tetra-O-acetyl-4-C-methyl-α-D-galactopyranosyl 1,3,4,6-tetra-O-acetyl-β-D-fructofuranoside