[EN] PYRAZOLO[3,4-D]PYRIMIDIN-4(5H)-ONE DERIVATIVES AS PDE9 INHIBITORS [FR] UTILISATION DE DÉRIVÉS DE PYRAZOLO[3,4-D]PYRIMIDIN-4(5H)-ONE COMME INHIBITEURS DE PDE9
[EN] PYRAZOLO[3,4-D]PYRIMIDIN-4(5H)-ONE DERIVATIVES AS PDE9 INHIBITORS [FR] UTILISATION DE DÉRIVÉS DE PYRAZOLO[3,4-D]PYRIMIDIN-4(5H)-ONE COMME INHIBITEURS DE PDE9