EP0001643A2 — Aminoglycoside derivatives, process for their manufacture, pharmaceutical compositions and carboxylic acids

USPTO Abstract

Aminoglycoside derivatives of the general formula (I) wherein R is an optionally substituted 4- to 6-membered heterocyclic group containing 1 or 2 nitrogen atoms; R is aminomethyl, hydroxymethyl, 1-aminoethyl, or 1-methylaminoethyl; R', R and R" are each hydrogen or hydroxy; π 2 R 3 and R° are each hydrogen or hydroxy; R 4 is hydroxy or amino; R 5 is amino or methylamino; R' is hydroxy or methyl; R" is hydrogen, hydroxymethyl, or carbamoyloxymetnyl; and the dotted line represents the optional presence of a double bond and their salts with acids, a process for their manufacture, pharmaceutical compositions having antibiotic activity and containing compounds of the general formula (I); furthermore carboxylic acids of the general formula (III) wherein R has the above meaning, useful as intermediates for preparing the compounds of the general formula (I).