7-O-Methylluteone is a prenylated isoflavone. It can be found in the bark of Erythrina burttii.
The enzyme monoprenyl isoflavone epoxidase uses 7-O-methylluteone, NADPH, H<sup>+</sup> and O<sub>2</sub> to produce a dihydrofurano pyranoisoflavone derivative, NADP<sup>+</sup> and H<sub>2</sub>O.