The invention relates to novel benzopyran derivatives of formula I, to theirmethod of production, to composition comprising the derivatives and usethereof.(see formula I)wherein :R1, R2, R3, R4, R5, R6, R7, and R8 can be various substituents. Thesecompoundscan be effective for treating diseases of the endocrinogical system such ashyperinsulinaemia or diabetes.