Process for preparing pyrrolidinylacetamide derivatives
Patent 5461157 Issued on October 24, 1995. Estimated Expiration Date: 
December 15, 2014. 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 15, 2014. 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 ReferencesProcess for the condensation of imides and alcohols or amines Patent #: 5059687 InventorsAssigneeApplicationNo. 356503 filed on 12/15/1994US Classes:548/550Nitrogen attached directly or indirectly to the five-membered hetero ring by acyclic nonionic bondingExaminersPrimary: Springer, David B.Attorney, Agent or FirmInternational ClassC07D 201/27Foreign Application Priority Data1992-06-19 JPAbstractA process for preparing a 2-(1-pyrrolidinyl)acetamide derivative useful as a cerebral function improving agent is disclosed, comprising reacting a halogenoacetamide derivative with substituted or unsubstituted 2-pyrrolidinone, the halogenoacetamide derivative being prepared by reacting an amine and a halogenoacetyl chloride. High yields of the intermediate compound as well as the final product are attained at low cost.Other References
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