DE3120460

New rifamicyn derivatives of the following general formula I wherein: A may be the structure -x- is a chemical bond or nil; R is hydrogen or acetyl R1 and R2 independently represent hydrogen, (C1-4) alkyl, benzyloxy, mono- and di-(C1-3)alkylamino- (C1-4)alkyl, (C1-3)alkoxy- (C1-4)alkyl, hydroxymethy...

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Bibliographic Details
Main Authors MARCHI, EGIDIO, MONTECCHI, LAURETTA, CASALECCHIORENO, BOLOGNA, IT
Format Patent
LanguageEnglish
Published 13.12.1990
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
ORGANIC CHEMISTRY
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS
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Summary:New rifamicyn derivatives of the following general formula I wherein: A may be the structure -x- is a chemical bond or nil; R is hydrogen or acetyl R1 and R2 independently represent hydrogen, (C1-4) alkyl, benzyloxy, mono- and di-(C1-3)alkylamino- (C1-4)alkyl, (C1-3)alkoxy- (C1-4)alkyl, hydroxymethyl, hydroxy-(C2-4)-alkyl, nitro or R1 and R2 taken together with two consecutive carbon atoms of the pyridine nucleus form a benzene ring optionally substituted by one or two methyl or ethyl groups; R3 is a hydrogen atom or nil; with the proviso that, when A is A1, -x- is nil and R3 is a hydrogen atom; with the further proviso that, when A is A2, -x- is a chemical bond and R3 is nil. The compounds possess antibacterial utility.
Bibliography:Application Number: DE19813120460