(2R,3R,4R,5R)-4-[(2S,3R,4S,5S,6R)-3,5-二羟基-6-(羟基甲基)-4-[(2S,3R,4S,5R,6R)-3,4,5-三羟基-6-(羟基甲基)四氢吡喃-2-基]氧基四氢吡喃-2-基]氧基-2,3,5,6-四羟基己醛
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