Patents by Inventor Sigeru Mitsuhashi

Sigeru Mitsuhashi 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).

  • N-substituted-7-amino-5-hydroxy-3-oxoheptanoic acid derivatives and method for producing the same
    Patent number: 5599954
    Abstract: Compounds represented by the following general structural formula (1) and methods for producing the compounds: ##STR1## R.sup.1 represents a group such as benzyloxycarbonyl, R.sup.2 represents a lower alkyl group, R.sup.3 represents a hydrogen atom or a protecting group, each of M.sup.1 and M.sup.2 represents a metal atom, and n represents the atomic valence of M.sup.1. Intermediates for HMG-CoA reductase inhibitors can be prepared safely and easily from these compounds.
    Type: Grant
    Filed: January 26, 1996
    Date of Patent: February 4, 1997
    Assignee: Takasago International Corporation
    Inventors: Sigeru Mitsuhashi, Tsukasa Sotoguchi, Yoshifumi Yuasa, Hidenori Kumobayashi