Quinolone carboxylic acid derivatives
US6313299A · kind A · utility
0Cited by
8References
3Claims
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Assignee
Inventors
Key dates
| Filing date | Dec 23, 1999 |
| Grant date | Nov 6, 2001 |
| Priority date | — |
| Expiry date | Dec 23, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P31/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to quinolonecarboxylic acid derivatives having more excellent and broad antibacterial activities than the existing quinolone-series antibiotics. More specifically, it pertains to novel quinolonecarboxylic acid derivatives represented by following formula 1, which have a derivative of 7-[8-(alkoxyimino)-2,6-diazaspiro[3.4]oct-6-yl] as a substituent, and pharmaceutically acceptable salts and isomers thereof: ##STR1## PA1 Wherein, A is C--H, C--F, C--Cl, C--O--CH.sub.3 or N; Y is H or amino; R.sub.1 is cyclopropyl or 2,4-difluorophenyl; R.sub.2 is C.sub.1-4 alkyl; and R.sub.3 is H or C.sub.1-4 alkyl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.