A new acylated flavonoid tetraglycoside with anti-inflammatory activity from Tipuana tipu leaves |
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Authors: | Yhiya M Amen Amani M Marzouk Mona G Zaghloul Mohamed S Afifi |
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Institution: | Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura35516, Egypt |
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Abstract: | A new acylated kaempferol glycoside, kaempferol 3-O-α-l-rhamnopyranosyl-(1 → 6)-O-β-d-glucopyranosyl-(1 → 2)-4-O-acetyl-α-l-rhamnopyranosyl-(1 → 2)]-β-d-galactopyranoside, has been isolated from the leaves of Tipuana tipu (Benth.) Lillo growing in Egypt, along with three known flavonol glycosides, kaempferol 3-O-rutinoside, quercetin 3-O-rutinoside (rutin) and kaempferol 3-O-α-l-rhamnopyranosyl-(1 → 6)]-α-l-rhamnopyranosyl-(1 → 2]-β-d-glucopyranoside. Structure elucidation was achieved through different spectroscopic methods. Structure relationship with anti-inflammatory activity using carrageenin-induced rat paw oedema model is discussed. |
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Keywords: | kaempferol tetraglycoside Tipuana tipu Fabaceae anti-inflammatory |
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