The invention provides compounds of Formula (I) as described herein, along with pharmaceutically acceptable salts, pharmaceutical compositions containing such compounds, and methods to use these compounds, salts and compositions for treating viral infections, particularly infections caused by hepatitis B virus, and reducing the occurrence of serious conditions associated with HBV.本發明提供如本文描述之式(I)化合物: 及醫藥上可接受之鹽、含有此等化合物之醫藥組合物及使用此等化合物、鹽及組合物治療病毒感染(特定言之由B型肝炎病毒引起之感染)及減少與HBV相關聯之嚴重病症之出現之方法。無