The invention concerns novel substituted tricyclic pyrazolo pyrimidine compounds of formula (I-a) or (I-b) having antiviral activity, in particular, having an inhibitory activity on the replication of the respiratory syncytial virus (RSV). The invention further concerns the preparation of such novel compounds, compositions comprising these compounds, and the compounds for use in the treatment of respiratory syncytial virus infection.
本发明涉及具有抗病毒活性,特别是对呼吸道合胞病毒(RSV)的复制具有抑制活性的式(I-a)或(I-b)的新型取代
三环吡唑并
嘧啶化合物。本发明进一步涉及此类新型化合物的制备、包含这些化合物的组合物以及用于治疗呼吸道合胞病毒感染的化合物。