Heterocyclic compounds
Patent 4343805 Issued on August 10, 1982. Estimated Expiration Date: 
December 18, 2000. 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.
December 18, 2000. 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 3907816 N-(1-carboxy-3-methylthio)propyl urea derivatives and compositions having plant-growth regulating properties Patent #: 3990883 InventorsAssigneeApplicationNo. 06/217925 filed on 12/18/1980US Classes:514/338, Plural hetero atoms in the polycyclo ring system514/358, The ring nitrogen of the six-membered hetero ring is pentavalent (e.g., quaternary pyridinium salt, etc.)514/927, Peptic546/153, Chalcogen attached directly to the six-membered hetero ring by nonionic bonding546/155, Plural chalcogens attached directly to the six-membered hetero ring by nonionic bonding546/156, Having -C(=X)-, wherein X is chalcogen, bonded directly to the six-membered hetero ring546/157, Chalcogen attached directly at 2-position by nonionic bonding546/193, Pyridine ring or partially hydrogenated pyridine ring546/210, Plural ring nitrogens in the additional hetero ring546/255, Plural pyridine or partially hydrogenated pyridine rings546/261, Chalcogen bonded directly to ring carbon of pyridine or partially hydrogenated pyridine ring546/262, Having -C(=X)-, wherein X is chalcogen, bonded directly to pyridine or partially hydrogenated pyridine ring546/274.4, Chalcogen attached directly to the 1,3-diazole ring by nonionic bonding546/274.7, Nitrogen or -C(=X)-, wherein X is chalcogen, attached directly to the 1,3-diazole diazole ring by nonionic bonding546/275.1, Chalcogen attached indirectly to the 1,3-diazole ring by acyclic nonionic bonding548/312.7, Plural 1,3-diazoles548/313.1, Additional diverse hetero ring attached directly or indirectly to a diazole ring by nonionic bonding548/343.1Halogen attached directly or indirectly to the diazole ring by acyclic nonionic bondingExaminersPrimary: Fan, Jane T.Attorney, Agent or FirmInternational ClassesC07D 233/84 (20060101)C07D 213/00 (20060101) C07D 213/70 (20060101) C07D 233/00 (20060101) Foreign Application Priority Data1978-12-16 GBAbstractThe invention concerns novel compounds of formula IX--A--S--Y (I)wherein X is a radical selected from imidazolyl, pyridyl, quinolyl, tetrahydropyridyl or piperidyl any of which may be substituted and Y is any of the above radicals or a pyridinium radical, A is alkylene of 1-6 carbon atoms. Most of the compounds are anti-ulcer agents but some have anti-hypertensive activity, eg where X is quinolyl. Methods of treating ulcers and anti-ulcer compositions are also described.Other References
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