p-tolyl 2-O-benzoyl-4,6-O-benzylidene-1-thio-β-D-galactopyranoside 在
三乙基硅烷 、
三氟甲磺酸 作用下,
以
二氯甲烷 为溶剂,
反应 5.0h,
生成
(1S,2R)-1-((3aR,4R,6S,7aS)-3-acetyl-6-((2S,3R,4S,5S,6R)-3-(benzoyloxy)-6-(benzyloxymethyl)-5-hydroxy-2-(p-tolylthio)tetrahydro-2H-pyran-4-yloxy)-6-(methoxycarbonyl)-2-oxohexahydro-2H-pyrano[3,4-d]oxazol-4-yl)propane-1,2,3-triyl triacetate 、 (1S,2R)-1-((3aR,4R,6R,7aS)-3-acetyl-6-((2S,3R,4S,5S,6R)-3-(benzoyloxy)-6-(benzyloxymethyl)-5-hydroxy-2-(p-tolylthio)tetrahydro-2H-pyran-4-yloxy)-6-(methoxycarbonyl)-2-oxohexahydro-2H-pyrano[3,4-d]oxazol-4-yl)propane-1,2,3-triyl triacetate