A blue secondary metabolite complex, named kyanomycin (2), in addition to e
psilon-rhodomycinone (1), was detected in the mycelium extract of Nonomuria
sp. NN 22303 by HPLC-diode array and HPLC-electrospray mass spectrometry s
creening. The chemical structures of the novel compounds were determined to
be unusual anthracycline-phosphatidylethanolamine hybrids by spectroscopic
and chemical degradation experiments.