9-[(2R,3R,4R,5S,6R)-3-Acetylamino-4-benzyloxy-6-benzyloxymethyl-5-((2S,3R,4S,5S,6R)-3,4,5,6-tetraacetoxy-oxepan-2-yloxy)-tetrahydro-pyran-2-yloxy]-nonanoic acid methyl ester 在
sodium methylate 作用下,
以
甲醇 为溶剂,
生成 9-[(2R,3R,4R,5S,6R)-3-Acetylamino-4-benzyloxy-6-benzyloxymethyl-5-((2S,3R,4S,5S,6R)-3,4,5,6-tetrahydroxy-oxepan-2-yloxy)-tetrahydro-pyran-2-yloxy]-nonanoic acid methyl ester