Patent · US Expired

Possibly substituted 8-cyano-1-cyclopropyl-7-(2,8-diazabicyclo-[4.3. 0]-nonan-8-yl)-6-fluoro-1,4-dihydro-4-oxo-3-quinolin carboxylic acids and their derivatives

US6323213A · kind A · utility

8Cited by
5References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 13, 1998
Grant dateNov 27, 2001
Priority date
Expiry dateAug 13, 2018

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61P33/10
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

The present invention relates to novel optionally substituted 8-cyano-1-cyclo-propyl-7-(2,8-diazabicyclo[4.3. 0]nonan-8-yl)-6-fluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acids and their derivatives, of the general formula (I) ##STR1## in which PA1 R.sup.1 represents hydrogen, C.sub.1 -C.sub.4 -alkyl which is optionally substituted by hydroxyl, methoxy, amino, methylamino or dimethylamino, or (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl, PA1 R.sup.2 represents hydrogen, benzyl, C.sub.1 -C.sub.3 -alkyl, (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl, radicals having the structures --CH.dbd.CH--COOR.sup.3, --CH.sub.2 CH.sub.2 COOR.sup.3, --CH.sub.2 CH.sub.2 CN, --CH.sub.2 CH.sub.2 COCH.sub.3 or --CH.sub.2 COCH.sub.3, in which R.sup.3 represents methyl or ethyl, or a radical of the general structure R.sup.4 --(NH--CHR.sup.5 --CO).sub.n --, in which R.sup.4 represents hydrogen, C.sub.1 -C.sub.3 -alkyl or the radical --COO-tert-butyl, R.sup.5 represents hydrogen, C.sub.1 -C.sub.4 -alkyl, hydroxyalkyl, aminoalkyl, thioalkyl, carboxyalkyl or benzyl and n is 1 or 2, and PA1 Y is oxygen or sulfur, the process for their preparation and their use in antibacterial compositions.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.