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Chemical structures of metabolites A–G isolated from Peking. (A) Kaempferol 3-O-glucosyl-(1→6)-galactoside; (B) quercetin 3-O-rutinoside; (C) kaempferol 3-O-gentiobioside; (D) kaempferol 3-O-robinobioside; (E) kaempferol 3-O-rutinoside; (F) isorhamnetin 3-O-robinobioside; (G) isorhamnetin 3-O-rutinoside.
