Benzo[1,8]naphthyridine derivatives, their preparation and the c

Details Benzo[1,8]naphthyridine derivatives, their preparation and the c Benzo[1,8]naphthyridine derivatives, their preparation and the c

1990-01-16

1991-04-02

Shen, Cecilia

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

514218, 544361, 540575, A61K 31495, A61K 31395, C07D40114

Patent

active

050047450

ABSTRACT:
New benzo[b][1,8]naphthyridine derivatives of general formula (I) in which R.sub.1 is a hydrogen atom or an alkyl or hydroxyalkyl radical, R.sub.2 is a hydrogen atom or an alkyl, fluoroalkyl, cycloalkyl (3 to 6 C), alkoxy or alkylamino radical and R.sub.3 is alkyl, R.sub.4 and R.sub.5 are different and are hydrogen or alkyl, or R.sub.3 is H, alkyl or cycloalkyl and R.sub.4 and R.sub.5 are hydrogen, R.sub.6 is hydrogen or fluorine and n is equal to 1 or 2, their salts, their preparation and the compositions which contain them.
These new products are used as antimicrobial agents ##STR1##

REFERENCES:
patent: 4133885 (1979-01-01), Bolhofer et al.
patent: 4229456 (1980-10-01), Bolhofer et al.
patent: 4594347 (1986-06-01), Ishikawa et al.
patent: 4705789 (1987-11-01), Grohe et al.
patent: 4720495 (1988-01-01), Takagi et al.

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