The invention relates to heterocyclically substituted methoxyphenyl derivatives with an oxo group, and to physiologically compatible salts thereof.The invention relates to compounds of the formula Iin which R1, R2, R3, R4, R10, X, n, B1, B2, B3 and B4 are each defined as specified, and to the physiologically compatible salts thereof. The compounds are suitable, for example, for treatment of diabetes.本發明係關於具有酮基之經雜環取代的甲氧基苯基衍生物及其生理上相容的鹽類。本發明係關於式I化合物其中R1、R2、R3、R4、R10、X、n、B1、B2、B3和B4各自係如所述之定義,及其生理上相容的鹽類。該化合物適合例如用於治療糖尿病。