Sattabacins and sattazolins: new biologically active compounds with antiviral properties extracted from a Bacillus sp

A series of new compounds with antiviral properties were isolated from a Bacillus sp. strain B-60. They were named sattabacin (1), hydroxysattabacin (2), sattazolin (3) and methylsattazolin (4). The biologically active compounds were recovered from fermentation broth by ethyl acetate extraction and silica-gel column fractionation. Their antiviral activity was mainly expressed against the Herpes simplex viruses type 1 and 2. The compound 3 showed a selective inhibition of protein synthesis in Herpesvirus-infected cells.