(2S,4aR,6S,7R,8S,8aS)-7,8-Bis-benzyloxy-6-((2S,3aR,5R,6R,7S,7aR)-2,7-bis-benzyloxy-5-benzyloxymethyl-2-methyl-tetrahydro-[1,3]dioxolo[4,5-b]pyran-6-yloxy)-2-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxine 在
三氟甲磺酸三甲基硅酯 作用下,
以
1,2-二氯乙烷 为溶剂,
生成
Acetic acid (2R,3R,4S,5R,6R)-2,4-bis-benzyloxy-6-benzyloxymethyl-5-((2S,4aR,6S,7R,8S,8aS)-7,8-bis-benzyloxy-2-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxin-6-yloxy)-tetrahydro-pyran-3-yl ester