1-cyclopentyl-6-({(2R)-1-[(3S)-3-fluoropyrrolidin-1-yl]-1-oxopropan-2-yl}amino)-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one

O76083 — High affinity cGMP-specific 3',5'-cyclic phosphodiesterase 9A