title: Cephamycins, a new family of beta-lactam antibiotics. II. Isolation and chemical characterization.
abstract: Cephamycins A and B were isolated from the same fermentation broth of various actinomycetes by adsorption and ion-exchange methods. The antibiotics were separated from each other by column chromatography on a dextran-based ion-exchange resin. Cephamycin C was isolated from a different fermentation broth by ion-exchange and gel-filtration methods. The chemical characteristics of these new antibiotics were determined.
mesh_terms: D000900:Anti-Bacterial Agents / Q000032:analysis*; D055598:Chemical Phenomena; D002621:Chemistry; D002848:Chromatography, DEAE-Cellulose; D002850:Chromatography, Gel; D002852:Chromatography, Ion Exchange; D047090:beta-Lactams / Q000032:analysis*
chemical_list: D000900:Anti-Bacterial Agents; D047090:beta-Lactams