The present invention provides a pharmaceutical composition that has excellent safety and targets a different step in the virus propagation cycle than conventional pharmaceutical compositions, applicable as an antiviral agent. A pharmaceutical composition containing an epigallocatechin gallate derivative represented by the following chemical formula (1), an isomer thereof, or a salt thereof is prepared. This can be used as a membrane fusion inhibitor that inhibits viral membrane fusion. In the following formula, R
1
to R
6
are each a hydrogen atom, halogen, sodium, potassium, or a straight-chain or branched, saturated or unsaturated acyl group and may be identical to or different from one another. The acyl group may be substituted further with one or more substituents. At least one of R
1
to R
6
is the acyl group. R
7
to R
16
are each a hydrogen atom, halogen, sodium, or potassium and may be identical to or different from one another.
本发明提供了一种药物组合物,具有优异的安全性,并且针对病毒传播周期中不同的步骤,适用于抗病毒药剂。制备了一种含有以下
化学式(1)所表示的表沙
黄酮酸酯衍
生物、其异构体或其盐的药物组合物。它可以用作抑制病毒膜融合的膜融合
抑制剂。在下面的公式中,R1到R6分别是氢原子、卤素、
钠、
钾或直链或支链、饱和或不饱和的酰基,可以相同或不同。酰基还可以进一步取代一个或多个取代基。其中至少一个是酰基。R7到R16分别是氢原子、卤素、
钠或
钾,可以相同或不同。