6-[2-(4-acetylamino-benzoylamino)-phenylcarbamoyloxy]-3,4,5-trihydroxy-tetrahydro-2H-pyran-2-carboxylic acid methyl ester 在
sodium hydroxide 作用下,
以
甲醇 为溶剂,
反应 0.25h,
以80%的产率得到6-[2-(4-acetylamino-benzoylamino)-phenylcarbamoyloxy]-3,4,5-trihydroxy-tetrahydro-2H-pyran-2-carboxylic acid