Patents by Inventor Goro Hayashi

Goro Hayashi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Novel azabicyclo octane derivative and process for preparing same
    Patent number: 3932429
    Abstract: A compound of the formula: ##SPC1##Wherein R.sup.1 is hydrogen, phenyl, alkyl of one to five carbon atoms, cycloalkyl of three to four carbon atoms, or alkyl of one to five carbon atoms having a substituent selected from the group consisting of phenyl, benzoyl and 4-fluorobenzoyl, R.sup.2 is hydrogen or alkyl of one to three carbon atoms, and R.sup.3 is hydrogen, alkanoyl of two to six carbon atoms, benzoyl or nicotinoyl, is disclosed. Several methods for preparing the compound (I) is also disclosed. The compound (I) and a pharmaceutically acceptable acid addition salt thereof are useful as analgesic agents.
    Type: Grant
    Filed: July 10, 1974
    Date of Patent: January 13, 1976
    Assignee: Tanabe Seiyaku Co., Ltd
    Inventors: Mikio Takeda, Hirozumi Inoue, Goro Hayashi, Seiichi Nurimoto