Invention Grant
US08716500B2 Method for producing five-membered ring-containing compound 有权
生产五元环化合物的方法

  • Patent Title: Method for producing five-membered ring-containing compound
  • Patent Title (中): 生产五元环化合物的方法
  • Application No.: US14113611
    Application Date: 2012-04-27
  • Publication No.: US08716500B2
    Publication Date: 2014-05-06
  • Inventor: Yujiro Hayashi
  • Applicant: Yujiro Hayashi
  • Applicant Address: JP Osaka
  • Assignee: Ono Pharmaceutical Co., Ltd.
  • Current Assignee: Ono Pharmaceutical Co., Ltd.
  • Current Assignee Address: JP Osaka
  • Agency: Sughrue Mion, PLLC
  • Priority: JP2011-100636 20110428
  • International Application: PCT/JP2012/061393 WO 20120427
  • International Announcement: WO2012/147925 WO 20121101
  • Main IPC: C07D307/02
  • IPC: C07D307/02
Method for producing five-membered ring-containing compound
Abstract:
The present invention provides a method that allows production of stereospecific and asymmetrical five-membered ring-containing compounds serving as synthetic intermediates for formation of five-membered rings of prostaglandins and the like, with high yield and excellent stereoselectivity in terms of diastereoselectivity and enantioselectivity in a short process without requiring troublesome procedures such as optical resolution. The method for producing a five-membered ring-containing compound includes a cyclization step of condensing and cyclizing an α,β-unsaturated nitro compound represented by the following chemical formula (I) with a 1,4-butanedione compound, in the presence of a catalyst formed by a compound having a pyrrolidine ring and an optically active α-carbon relative to the nitrogen on the ring, in a water-insoluble organic solvent and/or a non-oxygen atom-containing water-soluble organic solvent so as to produce the five-membered ring-containing compound represented by the following chemical formula (II).
Public/Granted literature
Information query
Patent Agency Ranking
0/0