Patents by Inventor Msao Kuroda

Msao Kuroda 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).

  • Octahydronaphthalene derivatives and their preparation
    Patent number: 4733003
    Abstract: Compounds of formula (I): ##STR1## [wherein X represents a hydrogen atom or a 2-methylbutyryl group, Y represents a hydrogen atom or a methyl group and R.sup.1 and R.sup.2 are the same or different and each represents an oxygen atom or a group of formula .dbd.N--OR.sup.3 (wherein R.sup.3 represents a hydrogen atom or an alkyl group)], the free hydroxy-carboxylic acids corresponding thereto and salts and esters of said acids may be prepared by oxidizing and, if necessary, oximating a corresponding ML-236A, ML-236B, MB-530A or MB-530B compound, and these compounds have valuable antihypercholesteraemic activity.
    Type: Grant
    Filed: May 6, 1986
    Date of Patent: March 22, 1988
    Assignee: Sankyo Company Limited
    Inventors: Junya Ide, Shigeki Muramatsu, Yoshio Tsujita, Msao Kuroda