abstract |
(57) [Summary] [Objective] To provide a drug having an antiviral effect and effective in treating a viral disease. [Structure] A quinone derivative such as 3- [5- (2,3-dimethoxy-6-methyl-1,4-benzoquinoyl)]-2-nonyl-2-propenoic acid and a pharmacologically acceptable salt are active ingredients. A viral disease therapeutic agent and an antiviral agent. |