Patents Examined by Richard C. Raymond
  • Tricyclic compounds
    Patent number: 4999363
    Abstract: Novel tricyclic compound represented by formula ##STR1## possess a TXA.sub.2 biosynthesis inhibiting activity and/or a TXA.sub.2 receptor antagonizing activity, and are expected to have preventive and therapeutic effects on ischemic diseases, cerebro-vascular diseases, etc.
    Type: Grant
    Filed: June 6, 1989
    Date of Patent: March 12, 1991
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Etsuo Oshima, Hiroyuki Obase, Akira Karasawa, Kazuhiro Kubo, Ichiro Miki, Akio Ishii