Abstract:isolated from a dichloromethane extract from the root bark of Muellera filipes (Benth.) M.J. Silva & A.M.G. Azevedo, along with two dibenzoylmethane derivatives, 2'-methoxy-8-(α,α-dimethylallyl)-furano-(4'',5'':3',4')-dibenzoylmethane and 2'-hydroxy-8-(α,α-dimethylallyl)-2",2"-dimethylpyrano-(5",6":3',4')-dibenzoylmethane; one flavanone, isolonchocarpin and one flavone, pongaglabrone, which had been previously isolated from other sources. The molecular structures of the new dibenzoylmethane derivatives were de… Show more
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