(2R,3S,4R,5R,6S)-5-acetamido-2-(acetoxymethyl)-6-(((2-oxo-1-(2-phenoxyethyl)indolin-3-ylidene)amino)oxy)tetrahydro-2H-pyran-3,4-diyl diacetate 在
甲醇 、
sodium methylate 作用下,
以
二氯甲烷 为溶剂,
反应 4.0h,
以92%的产率得到N-((2S,3R,4R,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)-2-(((2-oxo-1-(2-phenoxyethyl)indolin-3-ylidene)amino)oxy)tetrahydro-2H-pyran-3-yl)acetamide