11-Deoxy-13-dihydro-prostaglandin-9-ketals
Patent 3932463 Issued on January 13, 1976. Estimated Expiration Date: 
January 13, 1993. 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.
January 13, 1993. 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 References3671570 InventorsAssigneeApplicationNo. 05/475479 filed on 06/03/1974US Classes:549/333, Plural ring oxygens in a spiro hetero ring514/825, ARTHRITIS549/13, The hetero ring is six-membered549/22, Chalcogen or nitrogen attached indirectly to the hetero ring by nonionic bonding549/30, Plural ring hetero atoms in the hetero ring549/342, Acyclic -C(=X)-, wherein X is chalcogen, containing549/39, Chalcogen attached indirectly to the hetero ring by nonionic bonding560/121, Cyclopentyl in acid moiety (e.g., prostaglandins, etc.)560/122, Cyclopentyl-COOR, -C-COOR or -C-C-COOR560/231, Unsubstituted acids of the acetic series560/252, Polyoxy alcohol moiety562/465, Oxy562/503Cyclopentyl (e.g., prostoglandins, etc.)ExaminersPrimary: Raymond, Richard L.Attorney, Agent or FirmInternational ClassesC07C 405/00 (20060101)C07C 43/12 (20060101) C07C 43/00 (20060101) AbstractThis disclosure describes novel 11-deoxy-13,14-dihydro-prostaglandin-9-ketals useful as bronchodilators and as gastric acid secretion inhibitors. |
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