(2S,3S,4S,5R,6S)-3,4,5-Triacetoxy-6-(2-amino-5-bromo-3-cyano-phenoxy)-tetrahydro-pyran-2-carboxylic acid methyl ester 在
sodium hydroxide 作用下,
以
丙酮 为溶剂,
反应 0.25h,
以55.3%的产率得到(2S,3S,4S,5R,6S)-6-(2-Amino-5-bromo-3-cyano-phenoxy)-3,4,5-trihydroxy-tetrahydro-pyran-2-carboxylic acid