EP3524601B1 - N-{3-[3-Cyclopropyl-5-(2-Fluoro-4-Iodophenylamino)-6,8-Dimethyl-2,4,7-Trioxo-3,4,6,7-Tetrahydro-2h-Pyrido[4,3-D]pyrimidin-1-Yl]-Phenyl}-Cyclopropanecarboxamide Dimethyl Sulphoxide Solvate as an Mek1/2 Inhibitor