Ishikawa T, Kotake K, Ishii H
Faculty of Pharmaceutical Sciences, Chiba University, Japan.
Chem Pharm Bull (Tokyo). 1995 Jun;43(6):1039-41. doi: 10.1248/cpb.43.1039.
Toddacoumaquinone (1), a coumarin-naphthoquinone dimer, was synthesized through Diels-Alder reaction between 8-(1-acetoxy-3-methyl-1,3-butadienyl)-5,7-dimethoxycoumarin (15) and 2-methoxy-1,4-benzoquinone (5). The activities of 1 against several viruses were examined. A weak activity (EC50 = 10 micrograms/ml) was observed against HSV-1 and HSV-2, but no activity was seen against HIV-1.
