[(2S,3S,4R,5R,6S)-6-[(2R,3R,4S,5S,6S)-2-[(2R,3R,4S,5S,6S)-2-[[(2S)-8-acetyloxy-9-hydroxy-1-oxo-3,4-dihydro-2H-anthracen-2-yl]oxy]-6-(bromomethyl)-5-(2-chloroacetyl)oxy-3-phenylsulfanyloxan-4-yl]oxy-6-(bromomethyl)-5-(2-chloroacetyl)oxy-3-phenylsulfanyloxan-4-yl]oxy-4-hydroxy-5-iodo-2,4-dimethyloxan-3-yl] 2-methylpropanoate 在
甲醇 、
氨 作用下,
以
二氯甲烷 为溶剂,
反应 4.0h,
以59%的产率得到[(2S,3S,4R,5R,6S)-6-[(2R,3R,4S,5S,6S)-2-[(2R,3R,4S,5S,6S)-2-[[(2S)-8-acetyloxy-9-hydroxy-1-oxo-3,4-dihydro-2H-anthracen-2-yl]oxy]-6-(bromomethyl)-5-hydroxy-3-phenylsulfanyloxan-4-yl]oxy-6-(bromomethyl)-5-hydroxy-3-phenylsulfanyloxan-4-yl]oxy-4-hydroxy-5-iodo-2,4-dimethyloxan-3-yl] 2-methylpropanoate