7-(3-Substituted imino-1-pyrrolidinyl)-quinolone-3-carboxylic acids
Patent 4762845 Issued on August 9, 1988. Estimated Expiration Date: 
May 21, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 21, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References7-Amino-1-cyclopropyl-6,8-difluoro-1,4-di hydro-4-oxo-quinoline-3-carboxylic acids and antibacterial agents containing these compounds Patent #: 4556658 InventorsAssigneeApplicationNo. 06/866194 filed on 05/21/1986US Classes:514/312, Chalcogen attached directly to the six-membered hetero ring by nonionic bonding546/156Having -C(=X)-, wherein X is chalcogen, bonded directly to the six-membered hetero ringExaminersPrimary: Daus, Donald G.Assistant: Bernhardt, Emily Attorney, Agent or FirmInternational ClassesC07D 405/14 (20060101)C07D 405/00 (20060101) C07D 409/00 (20060101) C07D 409/14 (20060101) C07D 215/00 (20060101) C07D 215/56 (20060101) C07D 401/00 (20060101) C07D 401/04 (20060101) C07D 401/14 (20060101) AbstractNew 7-substituted 6-fluoro-1,4-dihydro-4-oxo-quinoline-3-carboxylic acids or esters having a substituted or unsubstituted phenyl radical, an aromatic heterocyclic radical, an alkyl or cycloalkyl radical in the 1-position are antibacterial agents.Other References
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