Provided are imidazol [1,5-f] [1,2.4]triazinyl, imidazol [1,2,4]triazinyl, and [1,2,4] triazolo [4,3-f] [1,2,4] triazinyl nucleosides of formula I nucleoside phosphates and prodrugs thereof. The compounds, compositions, and methods provided are useful for the treatment of Flaviviridae virus infections, particularly hepatitis C infections. Wherein X1 or X2 is indepently C-R10 or N and wherein at least one of X1 or X2 is N.
提供的是式I核苷酸
磷酸酯和其前药,包括
咪唑[1,5-f][1,2.4]三唑基、
咪唑[1,2,4]三唑基和[1,2,4]三唑[4,3-f][1,2,4]三唑基。所提供的化合物、组合物和方法对于治疗黄病毒科病毒感染,特别是丙型肝炎感染,具有益处。其中X1或X2独立地为C-R10或N,且至少其中之一为N。