Acetic acid (2S,3R,4R,5S,6S)-4-acetoxy-5-benzyloxy-2-[(2R,3R,4R,5S,6S)-5-benzyloxy-2-methoxy-6-methyl-4-((2R,3R,4S,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-3-yloxy]-6-methyl-tetrahydro-pyran-3-yl ester 在
吡啶 作用下,
以
二氯甲烷 为溶剂,
生成
Acetic acid (2S,3R,4R,5R,6S)-5-benzyloxy-2-[(2R,3R,4R,5S,6S)-5-benzyloxy-2-methoxy-6-methyl-4-((2R,3R,4S,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-3-yloxy]-4-hydroxy-6-methyl-tetrahydro-pyran-3-yl ester