of substituted beta-aminoxypropionic acids (AOPAs) were synthesized as analogues of antiinflammatory arylacetic acids (ArAAs), in which the Ar portion is substituted by the MAOMM, with the aim of evaluating whether any antiinflammatoryactivity could be obtained from this class of drugs after the substitution of the Ar with the MAOMM. The antiinflammatoryactivity of the AOPAs synthesized was determined