Patents Assigned to Sumitono Pharmaceutical Company, Limited
  • Succinimide derivatives, and their production and use
    Patent number: 4843078
    Abstract: A succinimide derivative of the formula: ##STR1## wherein R is a pyridyl or pyrimidinyl group substituted with at least one member selected from the group consisting of halogen, lower alkyl, lower alkoxy, cyano, benzyloxy, hydroxyl and amino, and n is an integer of 1 or 2, or a pharmaceutically acceptable acid addition salt thereof. The succinimide derivatives are useful as an anti-anxiety drugs.
    Type: Grant
    Filed: April 15, 1988
    Date of Patent: June 27, 1989
    Assignee: Sumitono Pharmaceutical Company, Limited
    Inventors: Kikuo Ishizumi, Fujio Antoku, Isamu Maruyama, Atsuyuki Kojima