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New antibiotics SF2315A and B produced by an Excellospora sp. I. Taxonomy of the strain, isolation and characterization of antibiotics.

1988; Springer Nature; Volume: 41; Issue: 7 Linguagem: Inglês

10.7164/antibiotics.41.835

1881-1469

Tōru Sasaki, Junko Yoshida, M. Itoh, Shuichi Gomi, TAKASHI SHOMURA, Masaji Sezaki,

Fungal Biology and Applications

Two new antibiotics SF2315A and B have been isolated from culture filtrate of an actinomycete strain, Excellospora viridilutea SF2315. They are weakly active against Gram-positive bacteria and inhibited reverse transcriptase of avian myeloblastosis virus. Empirical molecular formula of antibiotics SF2315A and B were determined to be C19H16O5 and C19H20O6, respectively.