[Structure of heliomycin produced by Streptomyces heliomycini and antibiotic 11-98 produced by Streptomyces olivocinereus].

The data on UV, 1H NMR and mass spectroscopy confirmed that heliomycin produced by S. heliomycini and antibiotic 11-98 produced by S. olivocinereus were identical with resistomycin. The major minor component produced by S. heliomycini was shown to be resistoflavin which was also confirmed by physicochemical methods.