New antibiotics SF2315A and B produced by an Excellospora sp. I. Taxonomy of the strain, isolation and characterization of antibiotics.
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.
Pharmaceutical Research Laboratories, Meiji Seika Kaisha, Ltd., Yokohama, Japan.
T
T
Sasaki
J
J
Yoshida
M
M
Itoh
S
S
Gomi
T
T
Shomura
M
M
Sezaki
D000192:Actinomycetales / Q000145:classification* / Q000378:metabolism; D000818:Animals; D000900:Anti-Bacterial Agents / Q000302:isolation & purification* / Q000494:pharmacology; D001551:Benz(a)Anthracenes / Q000302:isolation & purification / Q000494:pharmacology; D055598:Chemical Phenomena; D002621:Chemistry; D005285:Fermentation; D051379:Mice
D000900:Anti-Bacterial Agents; D001551:Benz(a)Anthracenes; C057095:SF 2315A; C057096:SF 2315B