发明授权
US5082951A Process for preparing 5-aroyl-2,3-dihydro-1H-pyrrolizine-1,1-dicarboxylates (I) and intermediates therefor 失效
制备5-芳酰基-2,3-二氢-1H-吡咯嗪-1,1-二羧酸酯(I)的方法及其中间体

  • 专利标题: Process for preparing 5-aroyl-2,3-dihydro-1H-pyrrolizine-1,1-dicarboxylates (I) and intermediates therefor
  • 专利标题(中): 制备5-芳酰基-2,3-二氢-1H-吡咯嗪-1,1-二羧酸酯(I)的方法及其中间体
  • 申请号: US596843
    申请日: 1990-10-12
  • 公开(公告)号: US5082951A
    公开(公告)日: 1992-01-21
  • 发明人: Joseph M. MuchowskiIn-Seop Cho
  • 申请人: Joseph M. MuchowskiIn-Seop Cho
  • 申请人地址: CA Palo Alto
  • 专利权人: Syntex (U.S.A.) Inc.
  • 当前专利权人: Syntex (U.S.A.) Inc.
  • 当前专利权人地址: CA Palo Alto
  • 主分类号: C07D487/04
  • IPC分类号: C07D487/04
Process for preparing
5-aroyl-2,3-dihydro-1H-pyrrolizine-1,1-dicarboxylates (I) and
intermediates therefor
摘要:
5-Aroyl-2,3-dihydro-1H-pyrrolizine-1,1-dicarboxylates of the formula ##STR1## are prepared from 2-aroylpyrroles. Hydrolysis and mono-decarboxylation of these compounds affords ketorolac and related compounds.
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