- M Koenuma: Shionogi Research Laboratories, Shionogi & Co., Ltd., Osaka, Japan.
A new antibiotic complex was isolated from the fermentation broth of Streptomyces aburaviensis PA-39856. The individual factors, demethylolivomycins A, B and demethylchromomycins A2, A3 were separated and purified by preparative HLC. These antibiotics possess high activities against Gram-positive bacteria and P388 leukemia in mice.