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Last Updated: December 12, 2025

Claims for Patent: 5,763,454

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Summary for Patent: 5,763,454

Title:	Crystal form of anhydrous 7-( 1α,5α,6α!-6-amino-3-azabicyclo 3.1.0!hex-3-yl)-6-fluoro-1-(2,4-difluorophenyl)-1,4-dihydro-4-oxo-1,8 naphthyridine-3-carboxylic acid, methanessulfonic acid salt
Abstract:	PCT No. PCT/US95/07211 Sec. 371 Date May 21, 1997 Sec. 102(e) Date May 21, 1997 PCT Filed Jun. 6, 1995 PCT Pub. No. WO96/39406 PCT Pub. Date Dec. 12, 1996The anhydrate of 7-([1 alpha ,5 alpha ,6 alpha ]-6-amino-3-azabicyclo[3.1.0]hex-3-yl)-6-fluoro-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.
Inventor(s):	Lynne A. Handanyan, Thomas A. Morris, Robert L. Hendrickson, Phillip J. Johnson, Timothy Norris
Assignee:	Pfizer Inc
Application Number:	US08/849,300
Patent Claims:

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