Intermediates and process for the preparation thereof
Patent 6215005 Issued on April 10, 2001. Estimated Expiration Date: 
May 3, 2020. 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.
May 3, 2020. 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 preparation of an n-phenylacetic derivative of tetrahydrothieno(3,2-c)pyridine and its chemical intermediate Stereospecific preparation of chiral 1-aryl-and 1-heteroaryl-2-substituted ethyl-2-amines Patent #: 6127550 InventorsAssigneeApplicationNo. 423548 filed on 05/03/2000US Classes:549/74Nitrogen attached indirectly to the hetero ring by nonionic bondingExaminersPrimary: Lambkin, Deborah C.Attorney, Agent or FirmForeign Patent References
International ClassC07D 333/12Foreign Application Priority Data1997-05-13 HUAbstractA process for the preparation of [2-(2-thienyl)-ethylamino]-(2-halogenophenyl)-acetonitriles of general formula (I) starting from 2-(2-thienyl)-ethyl-amine, alkalicyanide and o-halogeno-benzaldehyde. Compounds of general formula (I) are valuable intermediates. |
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