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A novel flavonoid was isolated from the root of Macrothelypteris torresiana(Gaud.) Ching.The structure of the product was identified as 5,7-dihydroxy-2-(1,2-isopropyldioxy-4-oxocyclohex-5-enyl)-chromen-4-one on the ground of chemical and spectroscopic methods.
A novel flavonoid was isolated from the root of Macrothelypteris torresiana (Gaud.) Ching. The structure of the product was identified as 5,7-dihydroxy-2- (1,2-isopropyldioxy-4-oxocyclohex-5- enyl) -chromen -4-one on the ground of chemical and spectroscopic methods.