Patents Represented by Law Firm Wenderoct, Lind & Ponack
  • Halogenated prostacyclins pharmaceutical use thereof and hydroxy intermediates therefore
    Patent number: 4472428
    Abstract: Novel 5- or 7-monohalogenated or 5,7-dihalogenated .sup.6 -PGI.sub.1 and 5- or 7-monohalogenated or dihalogenated PGI.sub.2 (except 5-monofluorinated PGI.sub.2). The novel halogenated prostacyclins are useful for controlling vascular actions and also in organ transplantation, extra-corporeal circulation and the like. The present invention also provides processes for preparing the novel halogenated prostacyclins.
    Type: Grant
    Filed: December 4, 1981
    Date of Patent: September 18, 1984
    Assignee: Teijin Limited
    Inventors: Takeshi Toru, Kiyoshi Bannai, Takeo Oba, Toshio Tanaka, Noriaki Okamura, Kenzo Wantanabe, Seizi Kurozumi, Akira Ohtsu, Tatsuyuki Naruchi