title: [A novel laboratory method of isolation and purification of tobramycin].
abstract: A new laboratory method for isolation and purification of tobramycin by using extraction of a tobramycin derivative with benzaldehyde by methylene chloride, subsequent hydrolysis of azomethine and recrystallization of the formed tobramycin sulfate from solution of sulfuric acid in methanol was developed. The method allows to exclude the stage of chromatographic purification of tobramycin, to reduce the time of the process realization from 120-125 h to 15-20 h, to increase the yield of the target product from 37-40% to 60-65% without decreasing the product quality, to exclude a number of large-size and expensive equipment and to ensure high reproducibility of the technology.
authors.affiliation: Center of Military Technical Problems of Biological Protection, Research Institute of Microbiology, Ministry of Defense of the Russian Federation, Ural State Technical University, Institute of Organic Synthesis, Ural Branch, Russian Academy of Sciences.
authors.forename: V L
authors.initials: VL
authors.lastname: Protasov
authors.forename: A F
authors.initials: AF
authors.lastname: Vydrin
authors.forename: G A
authors.initials: GA
authors.lastname: Mokrushina
authors.forename: M I
authors.initials: MI
authors.lastname: Kodess
authors.forename: V A
authors.initials: VA
authors.lastname: Mikhaĭlov
authors.forename: N V
authors.initials: NV
authors.lastname: Sadovoĭ
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000302:isolation & purification*; D001547:Benzaldehydes / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D006868:Hydrolysis; D007202:Indicators and Reagents; D008752:Methylene Chloride; D014031:Tobramycin / Q000737:chemistry / Q000302:isolation & purification*; D014867:Water
chemical_list: D000900:Anti-Bacterial Agents; D001547:Benzaldehydes; D007202:Indicators and Reagents; D014867:Water; D008752:Methylene Chloride; C032175:benzaldehyde; D014031:Tobramycin