The present invention relates to a compound having the general formula (I), optionally in the form of a pharmaceutically acceptable salt, solvate, polymorph, codrug, cocrystal, prodrug, tautomer, racemate, enantiomer, or diastereomer or mixture thereof, which are useful in treating, ameloriating or preventing a viral disease. Furthermore, specific combination therapies are disclosed.本發明係關於具有通式(I)之化合物,其視情況呈以下形式:醫藥上可接受之鹽、溶劑合物、多晶型物、共同藥物、共晶體、前藥、互變異構物、外消旋物、鏡像異構物或非鏡像異構物或其混合物,其可用於治療、改善或預防病毒疾病。此外,本發明揭示特定組合療法。