Patents Assigned to Kotokuki Seiya Kau Co., Ltd.
  • Antihypertensive 1,5-benzothiazepine derivatives and compositions thereof
    Patent number: 4780462
    Abstract: A new series of 1,5-benzothiazepine analogues are disclosed. These compounds are represented by the following general formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 each represent hydrogen, a lower alkyl, nitro, amino, lower-alkyl-oxy or halogen group, X represents O or S. These compounds are useful as anti-hypertensive agents.
    Type: Grant
    Filed: July 7, 1987
    Date of Patent: October 25, 1988
    Assignee: Kotokuki Seiya Kau Co., Ltd.
    Inventors: Tsuyoshi Tomiyama, Naoto Ueyama, Yumiko Ichikawa