Patents by Inventor Tokuo Furuse

Tokuo Furuse 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).

  • Process for producing steroid derivatives
    Patent number: 4891168
    Abstract: A process for producing a steroid compound which is useful as an intermediate for synthesizing plant growth regulators, brassinosteroids, and is represented by the general formula (4): ##STR1## in which R.sub.2 is a methyl or ethyl, and * indicates the binding site of R.sub.1 to a steroid nucleus, or general formula (5): ##STR2## wherein R.sub.1 is as defined above. According to the process disclosed herein, an intermediate for a brassinolide, epibrassinolide, homobrassinolide or derivatives thereof can be produced highly advantageously in the industries.
    Type: Grant
    Filed: September 15, 1987
    Date of Patent: January 2, 1990
    Assignees: Nippon Kayaku Kabushiki Kaisha, Tama Biochemical Co., Ltd.
    Inventors: Sei-ichi Hayashi, Tadashi Hohjoh, Tokuo Furuse, Hiroki Kuriyama, Tsuyoshi Watanabe, Suguru Takatsuto