Patents Assigned to Chugai Syiyaku Kabushiki Kaisha
  • Steroid derivatives and process for preparing the same
    Patent number: 4145357
    Abstract: A steroid derivative represented by the formula ##STR1## wherein R is as defined hereunder and a process for preparing the same are disclosed. The derivative is an intermediate for the production of various useful compounds.
    Type: Grant
    Filed: November 28, 1977
    Date of Patent: March 20, 1979
    Assignee: Chugai Syiyaku Kabushiki Kaisha
    Inventors: Kiyoshige Ochi, Isao Matsunaga, Minoru Shindo, Chikara Kaneko