Isolation and Structure of a New Antibiotic Viridomycin F Produced by Streptomyces sp. K96-0188.

In the course of our screening for new antibiotics, a new compound, viridomycin F (1, Fig. 1), was isolated from a culture broth of Streptomyces sp.K96-0188.Compound 1 is a complex of iron and /^-substituted onitrosophenol trimer and showed moderate insecticidal and nematocidal activities.Several iron complexes of ^-substituted 6>-nitrosophenols, viridomycin A (2)x ~3) and E4), actinoviridin (3)5), 4-hydroxy-3-nitrosobenz-