the present invention relates to a pharmaceutical composition comprising a compound of formula (a) or (2.3 (dihydroxy), 5 (3) (1.2) (1), 3hydroxy, 3m u00e9thyl, 4pent u00e8ne) benzene) and / or a compound of formula (b), 2.3 (dihydroxy), 5 (3) (2)]La présente invention concerne une composition pharmaceutique comprenant un composé de formule A, soit (2,3(dihydroxy), 5[3(1,2)butadiène], 1(3hydroxy,3méthyl,4pentène) benzène) et/ou un composé de formule B, soit (2,3(dihydroxy), 5[3(1,2)butadiène]