Indole derivative
Patent 5037845 Issued on August 6, 1991. Estimated Expiration Date: 
March 1, 2009. 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.
March 1, 2009. 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 3322787 3624103 3-Amino or amido-2-(1H-indol-3-yl) propanoic acid derivatives Heterocyclic compounds Patent #: 4816470 InventorAssigneeApplicationNo. 317682 filed on 03/01/1989US Classes:514/415, The bicyclo ring system consists of the five-membered hetero ring and a benzene ring (e.g., indole, etc.)548/504Nitrogen attached indirectly to ring carbon of the five-membered hetero ring by acyclic nonionic bonding (e.g., tryptamine, etc.)ExaminersPrimary: Ceperley, Mary E.Attorney, Agent or FirmForeign Patent References
International ClassesA61K 031/40C07D 209/16 Foreign Application Priority Data1984-08-01 GBAbstractA compound of formula (I) ##STR1## and its physiologically acceptable salts and solvates are described as useful in treating and/or preventing pain resulting from dilatation of the cranial vasculature in particular migraine.The compound (I) may be prepared, for example, by cyclizing a compound of formula (II) ##STR2##Other References
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