| 摘要 |
Disclosed are amino-heterocyclic compounds represented by the compounds of general formula (I), or pharmaceutically acceptable salts thereof, such as 6-[(3S,4S)1-benzyl-4-methylpyrrolid in-3-yl]-1-cyclopentyl-1,5-di hydro-4H-pyrazolo[3,4-d]pyrimidin-4-one. Also disclosed is the use of the compounds of formula (I) for inhibiting PDE9 and treating a neurodegenerative disease such as Alzheimer's disease.
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