title: Isolation, characterization and structures of PA-46101 A and B.
abstract: New antibiotics, PA-46101 A and B, were isolated from the culture broth of a Streptomycete. The molecular formulae of A and B were determined to be C52H70O18 and C61H86O22, respectively, by elemental analyses, NMR and mass spectrometry. Their structures were elucidated by X-ray crystallography and NMR spectroscopy. These antibiotics are active in vitro against anaerobic Gram-positive and Gram-negative bacteria and also against a limited number of aerobic Gram-positive bacteria.
authors.affiliation: Shionogi Research Laboratories, Shionogi & Co., Ltd., Osaka, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Matsumoto
authors.forename: Y
authors.initials: Y
authors.lastname: Kawamura
authors.forename: Y
authors.initials: Y
authors.lastname: Yoshimura
authors.forename: Y
authors.initials: Y
authors.lastname: Terui
authors.forename: H
authors.initials: H
authors.lastname: Nakai
authors.forename: T
authors.initials: T
authors.lastname: Yoshida
authors.forename: J
authors.initials: J
authors.lastname: Shoji
mesh_terms: D000617:Aminoglycosides; D000900:Anti-Bacterial Agents / Q000032:analysis / Q000096:biosynthesis / Q000302:isolation & purification* / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects*; D002850:Chromatography, Gel; D005285:Fermentation; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008968:Molecular Conformation; D015394:Molecular Structure; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013302:Streptomyces / Q000145:classification / Q000378:metabolism*; D014961:X-Ray Diffraction
chemical_list: D000617:Aminoglycosides; D000900:Anti-Bacterial Agents; C065435:PA 46101 A; C065436:PA 46101 B