The present invention relates to novel derivatives of 6,7-dihydro-3H-oxazolo[3,4-a]pyrazine-5,8-dione, a mixture of these derivatives. The present invention also encompasses the pharmaceutical compositions comprising an effective amount of a said compounds, object of the present invention, as well as to the use of the compounds and/or derivatives as a phosphodiesterase enzyme inhibitor, and the use of the compounds and/or derivatives in the treatment of erectile dysfunction, disorders and/or conditions treatable with relaxation of tissues and disorders treatable with phosphodiesterase inhibitors, more particularly PDE-5 inhibitor. A further objective of the present invention is to provide a medication comprising a therapeutically effective amount of said compound and a method of treating using the said novel compounds.
本发明涉及6,7-二氢-3H-
噁唑并[3,4-a]
吡嗪-5,8-二酮的新衍
生物,以及这些衍
生物的混合物。本发明还涵盖了包含所述化合物的有效量的药物组合物,以及将该化合物和/或衍
生物用作
磷酸二酯酶酶
抑制剂,以及将该化合物和/或衍
生物用于治疗勃起功能障碍、组织松弛可治疗的疾病和/或疾病可治疗的
磷酸二酯酶抑制剂,特别是PDE-5
抑制剂。本发明的另一个目标是提供一种包含所述化合物的治疗有效量的药物和使用这些新型化合物进行治疗的方法。