[Substances with antiviral. XVI. Thiosemicarbazones containing benzofuran and 1H-indene moieties].

A few hydrazones with benzofuran and 1H-indene moieties were synthesized and screened in vitro against vaccinia virus strain IHD, parainfluenza type 3 virus strain HA-1/CR-8, and the MP mutant of herpes simplex virus type 1 [HSV-1 (MP)]. Only the thiosemicarbazones were active. The thiosemicarbazone of 3-chloro-2-formyl-1H-indene inhibited vaccinia virus to a greater extent than methisazone, used as reference standard. Furthermore, this compound was active also against parainfluenza and herpes viruses.