Aranotin

**Semantic type:** Pharmacologic Substance

**Definition:** A fungal toxin isolated from Arachniotus aureus with activity against RNA viruses such as poliovirus, coxsackie virus, and rhino- and parainfluenza viruses. Aranotin inhibits viral RNA synthesis by impeding the activity of RNA-dependent RNA polymerase.

**Synonyms:** - 5-Acetoxy-5,5a,7,7a,8,13,13a,15,15a,16-decahydro-7a,15a-epidithio-13-hydroxybisoxepino(3',4':4,5)pyrrolo(1,2-a:1',2'-d)pyrazin-7,15-dion - 8H,16H-7a,15a-Epidithio-7H,15H-bisoxepino(3',4':4,5)pyrrolo(1,2-a:1',2'-d)pyrazine-7,15-dione, 5-(acetyloxy)-5,5a,13,13a-tetrahydro-13-hydroxy- - A-21101-IL - ARANOTIN - Antibiotic A 21101-IL - L 53185 - Lilly 53185