title: [Production of 14-substituted derivatives of carminomycin and rubomycin].
abstract: 14-Bromocarminomycin and 14-bromorubomycin were treated with alkali metal salts and nitrogen heterocycles to obtain 14-acetoxycarminomycin, 14-octamoylhydroxycarminomycin, 14-salicyloylhydroxycarminomycin, 14-salicyloylhydroxyrubomycin, 14-chinaldinoylhydroxyrubomycin and rubomycin 14-N-phthalimide, rubomycin 14-N-pyridinium bromide and 14-N-imidazolylrubomycin. It was shown that the reaction rate  of the nucleophilic substitution in the acetone medium could be increased with the use of crown ethers of sodium iodide. Under such conditions 14-iodinecarminomycin and 14-iodinerubomycin, two intermediate products, partially reduced to the initial antibiotics, i.e. carminomycin and rubomycin. 14-Acetoxycarminomycin had the highest activity against Bac. mycoides,  used as a test microbe. It amounted to 50 per cent, while the activity of the other derivatives did not exceed 25 per cent of the activity of the initial antibiotics.
mesh_terms: D001407:Bacillus / Q000187:drug effects; D002360:Carubicin / Q000031:analogs & derivatives / Q000138:chemical synthesis* / Q000494:pharmacology; D055598:Chemical Phenomena; D002621:Chemistry; D003630:Daunorubicin / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000494:pharmacology
chemical_list: D002360:Carubicin; D003630:Daunorubicin
vernacular_title: Poluchenie 14-zameshchennykh proizvodnykh karminomitsina i rubomitsina.