[EN] MALEATE, BESYLATE, AND L-MALATE SALTS OF 6-(5-CHLORO-2-PYRIDYL)-5-[(4-METHYL-1-PIPERAZINYL)CARBONYLOXY]-7-OXO-6,7-DIHYDRO-5H-PYRROLO[3,4-B]PYRAZINE [FR] SELS DE MALÉATE, DE BÉSYLATE ET DE L-MALATE DE 6-(5-CHLORO-2-PYRIDYL)-5-[(4-MÉTHYL-1-PIPÉRAZINYL)CARBONYLOXY]-7-OXO-6,7-DIHYDRO-5H-PYRROLO[3,4-B]-PYRAZINE