Flavonoid derivatives having inhibitory activity against tyrosinase and methods for producing the same

摘要

The present invention relates to a novel tyrosinase activity-inhibiting flavonoid derivative represented by the following general formula (I) and a process for producing the same.;In this formula,;Represents a double bond or a single bond,;R_OneRepresents hydrogen, hydroxy or oxo,;R₂, R₃, R₄And R₅Are each independently hydrogen, hydroxy or C_One-C₇Alkoxy.