Isolation and structure of phosphazomycin C.

In 1985, we reported the isolation of phosphazomycin A, one of the components of an antifungal antibiotic complex produced by Streptomyces sp. HK-803. Recently, we have succeeded in the isolation of component C. Although purified phosphazomycin C gave a single peak in HPLC analysis, NMR spectroscopic evidence showed that it is a mixture of two components, C 1 and C 2 . Here we wish to report the isolation and structure elucidation of the phosphazomycin C complex