Succinimide derivatives, compositions and method of use
Patent 4507303 Issued on March 26, 1985. Estimated Expiration Date: 
December 1, 2002. 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 1, 2002. 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 2928846 3184456 3398151 3717634 3850922 3907801 Tranquilizer process employing N-(heteroarcyclic)piperazinylalkylazaspiroalkanediones Buspirone anti-anxiety method Patent #: 4182763 InventorsAssigneeApplicationNo. 06/446047 filed on 12/01/1982US Classes:514/252.19, Five-membered nitrogen hetero ring attached directly or indirectly to the 1,3-diazine ring by nonionic bonding514/253.09, Five-membered nitrogen hetero ring attached directly or indirectly to the piperazine ring by nonionic bonding514/254.01, The additional hetero ring is five-membered having ring nitrogen544/230, Spiro544/295, Plural diazine rings544/364, At least three hetero rings containing544/372Five-membered hetero ring consisting of one nitrogen and four carbonsExaminersPrimary: Hollrah, Glennon H.Assistant: Turnipseed, James H. Attorney, Agent or FirmInternational ClassesC07D 209/00 (20060101)C07D 403/12 (20060101) C07D 209/76 (20060101) C07D 401/00 (20060101) C07D 403/00 (20060101) C07D 401/12 (20060101) C07D 491/18 (20060101) C07D 491/00 (20060101) Foreign Application Priority Data1981-12-22 JPAbstractSuccinimide derivatives representable by the following formula: ##STR1## wherein X and Y are combined to form a group of the formula: ##STR2## (wherein A is an oxygen atom, a methylene group or an ethylene group and a full line accompanying a broken line ( ) is a single bond or a double bond) and Z is a hydrogen atom or, X and Z are combined to form a group of the formula: ##STR3## (wherein A and a full line are each as defined above) and Y is a hydrogen atom, R is a phenyl group, optionally substituted with halogen, C1 -C4 alkyl, C1 -C4 alkoxy or trifluoromethyl, a 2-pyridyl group or a 2-pyrimidinyl group and n is an integer of 3 or 4, and pharmaceutically acceptable acid addition salts thereof, which are useful as antianxious substances.Other References
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