(2R,3R,4R,6S)-6-{[(3aR,4R,4'R,5'S,6S,6'R,7S,7aR)-6-{[(2S,3R,4S,5S,6R)-2-{[(2R,4S,6S)-6-({(2R,3aS,3a'R,6S,7R,7'R,7aS,7a'S)-7'-[(2,4-二羟基-6-甲基苯甲酰)氧代]-7-羟基八氢-4H-2,4'-螺联[[1,3]二噁唑并[4,5-c]吡喃]-6-基}氧代)-4-羟基-5-甲氧基-2-
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