Imidazolyl alkylaminopyridone and pyridinethione compounds
Patent 4035374 Issued on July 12, 1977. Estimated Expiration Date: 
July 12, 1994. 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.
July 12, 1994. 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 References 3654291 3853897 3894151 3898335 3923809 InventorsAssigneeApplicationNo. 05/619724 filed on 10/06/1975US Classes:546/275.1, Chalcogen attached indirectly to the 1,3-diazole ring by acyclic nonionic bonding514/849, COUGH AND COLD PREPARATION544/182, Asymmetrical (e.g., 1, 2, 4-triazines, etc.)544/284, Additional nitrogen containing unsaturated hetero ring (e.g., thiazole, etc.)544/317, The nitrogen is bonded directly at 4- or 6-position544/319, At 4- or 6-position544/8, Thiadiazines544/9, Polycyclo ring system having the thiadiazine ring as one of the cyclos546/153, Chalcogen attached directly to the six-membered hetero ring by nonionic bonding546/272.7, 1,3-diazoles (including hydrogenated)546/274.4, Chalcogen attached directly to the 1,3-diazole ring by nonionic bonding546/274.7Nitrogen or -C(=X)-, wherein X is chalcogen, attached directly to the 1,3-diazole diazole ring by nonionic bondingExaminersPrimary: Rotman, Alan L.Attorney, Agent or FirmForeign Application Priority Data1973-05-03 UKAbstractHeterocyclic compounds which are inhibitors of histamine activity, in particular, inhibitors of H-2 histamine receptors. A specific compound of this invention is 2-[2-(4-methyl-5-imidazolylmethylthio)ethylamino]-4-pyrimidone. |
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