Isolation of Two Flavonoids from Tanacetum microphyllum as PMA-Induced Ear Edema Inhibitors

Abstract
The CH2Cl2 extract of Tanacetum microphyllum exhibited antiinflammatory activity on PMA-mouse ear model. Two antiinflammatory flavonoids, 5,7-dihydroxy-3,6,4‘-trimethoxyflavone (santin) (1) and 5,7-dihydroxy-3,4‘-dimethoxyflavone (ermanin) (2), were isolated.

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