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US5189170A Process for the preparation of phenylacetic derivatives of thieno-pyridines 失效
噻吩并吡啶的苯乙酸衍生物的制备方法

  • Patent Title: Process for the preparation of phenylacetic derivatives of thieno-pyridines
  • Patent Title (中): 噻吩并吡啶的苯乙酸衍生物的制备方法
  • Application No.: US677482
    Application Date: 1991-03-29
  • Publication No.: US5189170A
    Publication Date: 1993-02-23
  • Inventor: Michel BouissetJoel Radisson
  • Applicant: Michel BouissetJoel Radisson
  • Applicant Address: FRX Paris
  • Assignee: Sanofi
  • Current Assignee: Sanofi
  • Current Assignee Address: FRX Paris
  • Priority: FRX8912787 19890929
  • Main IPC: C07C51/00
  • IPC: C07C51/00
Process for the preparation of phenylacetic derivatives of
thieno-pyridines
Abstract:
Compounds of formula: ##STR1## in which R.sub.1 and R.sub.2 are hydrogen or halogen, are prepared by reacting an aldehyde of formula: ##STR2## with CHBr.sub.3 and KOH in a mixture of an inert solvent and water. Further an ester of compound (I) wherein R.sub.1 is H and R.sub.2 is 2-Cl is reacted with 4,5,6,7-tetrahydrothieno[3,2-c]pyridine to produce a compound of formula III: ##STR3## which is useful as a medicament.
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