(2S,3R,4S,5R,6R)-2-[[(3aR,5R,6S,7S,7aR)-7-hydroxy-5-(hydroxymethyl)-2-methoxy-2-methyl-5,6,7,7a-tetrahydro-3aH-[1,3]dioxolo[4,5-b]pyran-6-yl]oxy]-6-(hydroxymethyl)oxane-3,4,5-triol 在
三氟甲磺酸 、 3 A molecular sieve 、
二正丁基氧化锡 作用下,
以
甲醇 、
乙腈 为溶剂,
反应 32.0h,
生成
Acetic acid (3R,4S,5S,6R)-5-((2S,3R,4S,5S,6R)-4-allyloxy-3,5-dihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-2-benzyloxy-4-hydroxy-6-hydroxymethyl-tetrahydro-pyran-3-yl ester