DC-86-M, a novel antitumor antibiotic. II. Structure determination and biological activities

A novel antibiotic, DC-86-M was isolated from the culture broth of Streptomyces luteogriseus DO-86. The antibiotic has the molecular formula of C17H14N2O5 and belongs to the phenazine antibiotics. Its structure has been elucidated by mass and NMR spectra. It is active against Gram-positive and Gram-negative bacteria and experimental murine sarcoma 180.