This invention is directed to compounds, which are PDE9 enzyme inhibitors. The invention provides a pharmaceutical composition comprising a therapeutically effective amount of a compound of the invention and a pharmaceutically acceptable carrier. The present invention also provides processes for the preparation of the compounds of formula (I). The present invention further provides a method of treating a subject suffering from a neurodegenerative disorder comprising administering to the subject a therapeutically effective amount of a compound of formula (I). The present invention further provides a method of treating a subject suffering from a psychiatric disorder comprising administering to the subject a therapeutically effective amount of a compound of formula (I).
本发明涉及一种PDE9酶
抑制剂化合物。该发明提供了一种药物组合物,包括本发明化合物的治疗有效量和药学可接受的载体。本发明还提供了制备式(I)化合物的方法。本发明还提供了一种治疗神经退行性疾病的方法,包括向患者投与式(I)化合物的治疗有效量。本发明还提供了一种治疗精神障碍的方法,包括向患者投与式(I)化合物的治疗有效量。