PYRAZOLO [1, 5 -A] PYRIMIDINES AS ANTIVIRAL AGENTS

摘要

Abstract: The invention provides compounds of Formula I or Formula II: (I), (II) or a pharmaceutically acceptable salt or ester, thereof, as described herein. The compounds and compositions thereof are useful for treating Pneumovirinae virus infections. The compounds, compositions, and 5 methods provided are particularly useful for the treatment of Human respiratory syncytial virus infections. H N , R3 A H N J.. R3 Nl N R8 R3 N N R Ar Ar Formula I Formula II