ISOPRENYLATED FLAVONOIDS - A SURVEY

The structural variation of isoprenylated flavonoids, including the ch alcones, flavones and flavonols, as well as their dihydro derivatives are reviewed. Emphasis is mainly directed to the modification of the s ide attachments arising from C-5, C-10, or C-15 groups, and the freque ncy of their occurrence among the different classes of flavonoids. Som e aspects related to their biosynthesis and enzymology, as well as the ir biological/pharmacological activities are also discussed. The natur al occurrences of the various classes of isoprenylated flavonoids are tabulated as part of this review. Copyright (C) 1996 Elsevier Science Ltd