Crystal form of anhydrous 7-(1.alpha.,5.alpha.,6.alpha.!-6-amino-3-azabicyclo3.1.0!hex-3-yl)-6-f luoro-1-(2,4-difluorophenyl)-1,4-dihydro-4-oxo-1,8 naphthyridine-3-carboxylic acid, methanessulfonic acid salt
US5763454A · kind A · utility
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Key dates
| Filing date | May 21, 1997 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | May 21, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P31/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The anhydrate of 7-(1.alpha.,5.alpha.,6.alpha.!-6-amino-3-azabicyclo3.1.0!hex-3-yl)-6-flu oro-1-(2,4-difluorophenyl)-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic acid, methanesulfonic acid salt has advantageous stability for formulation as an antibacterial agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.