title: Azicemicins A and B, a new antimicrobial agent produced by Amycolatopsis. I. Taxonomy, fermentation, isolation, characterization and biological activities.
abstract: A new structural class of the antibiotic, azicemicins A (1) and B (2) were isolated from the culture broth of the strain MJ126-NF4, which was closely related to Amycolatopsis sulphurea. They were purified by adsorption on Diaion HP-20, silica gel column chromatography and preparative TLC. The molecular formulas of 1 and 2 were determined to be C23H25O9N and C22H23O9N by HRFAB-MS, respectively. Azicemicins A and B have moderate growth inhibiting activity against Gram-positive bacteria and mycobacteria.
authors.affiliation: Institute of Microbial Chemistry, Tokyo, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Tsuchida
authors.forename: H
authors.initials: H
authors.lastname: Inuma
authors.forename: N
authors.initials: N
authors.lastname: Kinoshita
authors.forename: T
authors.initials: T
authors.lastname: Ikeda
authors.forename: T
authors.initials: T
authors.lastname: Sawa
authors.forename: M
authors.initials: M
authors.lastname: Hamada
authors.forename: T
authors.initials: T
authors.lastname: Takeuchi
mesh_terms: D039903:Actinobacteria / Q000378:metabolism*; D000818:Animals; D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D001551:Benz(a)Anthracenes / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D005285:Fermentation; D006094:Gram-Positive Bacteria / Q000187:drug effects; D051379:Mice; D008826:Microbial Sensitivity Tests
chemical_list: D000900:Anti-Bacterial Agents; D001551:Benz(a)Anthracenes; C093247:azicemicin B; C085042:azicemicin A