(2S,3R,4R,5R,6S)-2-[(2R,3R,4R,5R)-2-Allyloxy-4-benzyloxy-5-((S)-1-benzyloxy-ethyl)-tetrahydro-furan-3-yloxy]-3,5-bis-benzyloxy-6-methyl-tetrahydro-pyran-4-ol 在
三氟化硼乙醚 作用下,
以
二氯甲烷 为溶剂,
生成 (3R,4R,5S,6S)-3-[(2S,3R,4R,5S,6S)-3,5-Dihydroxy-4-((2S,3S,4R,5R,6S)-5-hydroxy-3,4-dimethoxy-6-methyl-tetrahydro-pyran-2-yloxy)-6-methyl-tetrahydro-pyran-2-yloxy]-6-methyl-tetrahydro-pyran-2,4,5-triol