Azaspiro quinolone antibacterial agents

Details Azaspiro quinolone antibacterial agents Azaspiro quinolone antibacterial agents

1993-11-22

1995-04-18

Berch, Mark L.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

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

514312, 546 16, 544 6, 544 70, C07D40104, A61K 3147

Patent

active

054079438

CLAIM:
1. A compound of the formula ##STR16## wherein R.sup.1 is hydrogen, C.sub.1 -C.sub.3 alkyl, benzyl, or a pharmaceutically acceptable cation,
A is CH, CF CCl, COCH.sub.3, C-CH.dbd.CH.sub.2, C--(C.sub.1 -C.sub.3) alkyl, C--CF.sub.3, C--CN or N;
Y is C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.2 haloalkyl, cyclopropyl, halocyclopropyl, vinyl, 4-halophenyl, 2,4-difluorophenyl, methoxy or NHCH.sub.3 ; ##STR17## R.sup.2 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, amino, halogen or aminomethyl; and
R.sup.3 is a group of the formula ##STR18## wherein R.sup.5 is hydrogen or C.sub.1 -C.sub.3 alkyl, R.sup.6 and R.sup.7 are each independently hydrogen, C.sub.1 -C.sub.3 alkyl or halogen, m is 2 or 3, p is 1 or 2, q is 2 or 3 p+q is 4, and R.sup.6 is located next to the group NHR.sup.5.





2. A compound according to claim 1 wherein R.sup.1 is hydrogen and A is CH or N.





3. A compound according to claim 1 wherein Y is cyclopropyl or 2,4-difluorophenyl.





4. A compound according to claim 1 wherein said compound is 7-(1-amino-6-azaspiro[2.5]oct-6-yl)-1-(2,4-difluorophenyl)-6-fluoro-1,4-di hydro-4-oxo-naphthyridine-3-carboxylic acid, 7-(1-amino-6-azaspiro[2.5]oct-6-yl)-1-cyclopropyl-6-fluoro-1,4-dihydro-4-o xo-quinoline-3-carboxylic acid, 7-(1-amino-6-azaspiro[2.5]oct-6-yl)-1-cyclopropyl-6-fluoro-1,4-dihydro-4-o xo-1,8-naphthyridine-3-carboxylic acid, 7-(trans-1-amino-5-azaspiro[2.5]oct-5-yl)-1-cyclopropyl-6-fluoro-1,4-dihyd ro-4-oxo-1,8-naphthyridine-3-carboxylic acid, or 7-(2-amino-7-azaspiro[3.5]non-7-yl)-1-(2,4-difluorophenyl)-6-fluoro-1,4-di hydro-4-oxo-1,8-naphthyridine-3-carboxylic acid.





5. A compound according to claim 1, wherein R.sup.3 is 1-amino-6-azaspiro[2.5]oct-6-yl.





6. A compound according to claim 1, wherein R.sup.3 is 1-amino-5-azaspiro[2.5]oct-5-yl.





7. A compound according to claim 1, wherein R.sup.3 is 2-amino-7-azaspiro[3.5]non-7-yl.





8. An antibacteral composition comprising a compound according to claim 1 and a pharmaceutically acceptable carrier.





9. A method of treating a host afffected by a bacterial infection which comprises administering to said host an antibacterially effective amount of a compound according to claim 1.

REFERENCES:
patent: 4571396 (1986-02-01), Hutt et al.
patent: 5245037 (1993-09-01), Kuramoto

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