Representative 1H NMR (CDCl3, 500 MHz) spectrum confirming the structure of Circumdatin F. Representative 13C NMR (CDCl3, 125 MHz) spectrum supporting structural assignment of Circumdatin F.
Source Organism
Aspergillus westerdijkiae.
Summary
Circumdatin F is a fungal quinazolinobenzodiazepine alkaloid studied in antiviral research.
Details
Circumdatin F is a quinazolino[3,2-a][1,4]benzodiazepinedione alkaloid isolated from Aspergillus species. It has been reported to inhibit the final stage of hepatitis C virus polyprotein processing and exhibits activity in antifouling models by modulating marine microbial community composition. Structurally, it contains fused quinazolinone and benzodiazepinone moieties typical of fungal benzodiazepine alkaloids. Circumdatin F serves as a useful scaffold for studying antiviral mechanisms and environmentally friendly antifouling strategies.