Patents Examined by John J. Dell
  • 5,6-Dihydroxy aminotetralol compounds
    Patent number: 4010202
    Abstract: Novel aminotetralol compounds of the formula ##STR1## wherein Z.sup.1 and Z.sup.2 are hydrogen or an alkyl group and R.sup.1 is a substituted acyclic hydrocarbon group or a cyclic hydrocarbon group, and their pharmaceutically acceptable salts, have excellent pharmacological activities such as strong bronchodilating activity or .beta.-adrenergic blocking activity. They are useful as medicines, for example, for treatment of asthma or arrhythmia.
    Type: Grant
    Filed: March 4, 1975
    Date of Patent: March 1, 1977
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Hirosada Sugihara, Masazumi Watanabe, Michio Motohashi, Masao Nishikawa, Yasushi Sanno