The present invention is a method of inhibiting the replication of an influenza virus by using an antiviral compound to inhibit the binding of an influenza-virus PB2 subunit to an RNA cap. The antiviral compound may be 5-iodo-2-[(3-methyl-4-nitrobenzoyl)amino]benzoic acid; 3,3′-[(4-methylphenyl)methylene]bis(4-hydroxy-2H-chromen-2-one); or 7-(4-hydroxy-2-oxo-2H-chromen-3-yl)-6H,7H,8Hchromeno[3,4′:5,6]pyrano[3,2-c]chromene-6,8-dione. The aforementioned antiviral compounds have successfully inhibited the replication of influenza virus in vitro and in vivo in mouse models.
本发明是一种通过使用抗病毒化合物抑制流感病毒PB2亚基与RNA帽结合来抑制流感病毒复制的方法。抗病毒化合物可以是 5-
碘-2-[(3-甲基-4-
硝基苯甲酰基)
氨基]
苯甲酸;3,3′-[(4-甲基苯基)亚甲基]双(
4-羟基-2H-苯并
吡喃-2-酮);或 7-(
4-羟基-2-氧代-2H-苯并
吡喃-3-基)-6H,7H,8H-苯并
吡喃[3,4′:5,6]pyrano[3,2-c]chromene-6,8-dione.上述抗病毒化合物成功地抑制了流感病毒在体外和小鼠模型体内的复制。