pentafluorophenyl 3,4-dimethoxybenzoate 、 9-[(2R,3R,4R,5S,6R)-3-Amino-6-benzyloxymethyl-5-hydroxy-4-((2S,3S,4R,5R,6S)-3,4,5-tris-benzyloxy-6-methyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-2-yloxy]-nonanoic acid methyl ester 在
2,6-二甲基吡啶 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 16.0h,
以93%的产率得到9-[(2R,3R,4R,5S,6R)-6-Benzyloxymethyl-3-(3,4-dimethoxy-benzoylamino)-5-hydroxy-4-((2S,3S,4R,5R,6S)-3,4,5-tris-benzyloxy-6-methyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-2-yloxy]-nonanoic acid methyl ester