Quinoline carboxylic acid boric acid anhydrides
US4940794A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1988 |
| Grant date | Jul 10, 1990 |
| Priority date | — |
| Expiry date | Dec 2, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P31/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to new quinoline-3-carboxylic acid anhydride intermediates of the Formula I ##STR1## wherein R stands for cyclopropyl, a group of the Formula --CH.sub.2 CR.sup.5 R.sup.6 R.sup.7 wherein R.sup.5, R.sup.6 and R.sup.7 stand for hydrogen or halogen, or phenyl optionally substituted by 1 or 2 halogen, PA0 R.sup.1 and R.sup.2 stand for halogen, or an aliphatic acyloxy group containing 2 to 6 carbon atoms optionally substituted by halogen, or an aromatic acyloxy group containing 7 to 11 carbon atoms, PA0 R.sup.3 stands for chlorine or fluorine and PA0 R.sup.4 stands for hydrogen or fluorine. The compounds of the Formula I are new intermediates for the preparation of known quinoline-3-carbocxylic acids showing antibacterial activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.