67650-38-8Relevant academic research and scientific papers
Process for the preparation of purified aminoglycoside antibiotics
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, (2008/06/13)
The invention relates to an improved process for the isolation and purification of aminoglycoside antibiotics of Formula (I) as defined herein combining selective lipophilization of the compound of Formula (I) in the crude product obtained by fermentation with controlled liquid/liquid extraction.
Semisynthetic Aminoglycoside Antibacterials. Part 9. Synthesis of Novel 1- and 3-Substituted and 1- and 3-epi-Substituted Derivatives of Sisomicin and Gentamicin from the 1- and 3-Oxo-derivatives
Boxler, Dena L.,Brambilla, Raymond,Davies, D. Huw,Mallams, Alan K.,McCombie, Stuart W.,at al.
, p. 2168 - 2185 (2007/10/02)
The conversion of selectively protected gentamicin and sisomicin derivatives into the 1- and 3-oxo-compounds by reaction with 3,5-di-t-butyl-1,2-benzoquinone is described.By application of suitable reductive techniques these oxo-aminoglucosides have been converted into novel 1- and 3-epi-, 1- and 3-deamino-1- and -3-hydroxy-, 1- and 3-deamino-1- and -3-epi-hydroxy, and 1-deamino-derivatives.A study of the 13C n.m.r. parameters of the 1-epi- and 1-deamino-derivatives has led to the assignment of novel solution conformations for these new aminoglycosides.
Aminoglycoside 66-40C, method for its manufacture, method for its use as an intermediate in the preparation of known antibiotics and novel antibacterials
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, (2008/06/13)
Aminoglycoside 66-40C, a minor product produced by the fermentation of Micromonospora inyoensis, is separated from said fermentation mixture, and is used as an intermediate in preparing the known antibiotic, sisomicin, as well as 6' -N-alkylsisomicins having antibacterial activity. Claimed are Aminoglycoside 66-40C as well as 6' -N-t-alkylsisomicins having a tertiary carbon bonded to the 6' -nitrogen.
Di-N-alkylaminoglycosides, methods for their manufacture and novel intermediates useful therein, method for their use as antibacterial agents and pharmaceutical compositions useful therefor
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, (2008/06/13)
1,2'-di-N-4,6-di-O-(aminoglycosyl)-1,3-diaminocyclitols and 1,6'-di-N-alkyl-4,6-di-O-(aminoglycosyl)-1,3-diaminocyclitols and their acid addition salts are valuable as antibacterial agents. Also disclosed are 2'-N-alkyl-4,6-di-O-(aminoglycosyl)-1,3-diaminocyclitol antibacterial agents which are also useful as intermediates in the preparation of the 1,2'-di-N-alkyl-4,6-di-O-(aminoglycosyl)-1,3-diaminocyclitols. Preferred compounds of this invention include 1,2'-di-N-ethylsisomicin and 1,6'-di-N-ethylsisomicin.
