Patents by Inventor Morihiro Mitsukuchi

Morihiro Mitsukuchi 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).

  • 21-alkoxysteroid compounds
    Patent number: 4968822
    Abstract: A 21-alkoxysteroid compound represented by the formula ##STR1## wherein R.sup.1 is an alkyl group having 1 to 4 carbon atoms or a methylthiomethyl group, R.sup.2 is an alkanoyl group having 2 to 7 carbon atoms, and a wavy line indicates the .alpha.- or .beta.-configuration has anti-inflammatory activity.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: November 6, 1990
    Assignee: Taisho Pharmaceutical Co., Ltd.
    Inventors: Morihiro Mitsukuchi, Tomoyuki Ikemoto, Minoru Taguchi, Katsuo Hatayama, Kaoru Sota
  • 21-alkyl-, cycloalkyl- or aryl-substituted thio steroids and pharmaceutical compositions containing them
    Patent number: 4861765
    Abstract: A 21-substituted thiosteroid represented by the general formula ##STR1## wherein R.sup.1 represents an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 5 or 6 carbon atoms, a phenyl group, or a benzyl group which may have a substituent on the benzene ring,R.sup.2 represents an alkanoyl group having 2 to 6 carbon atoms,R.sup.3 represents a hydrogen atom or a methyl group,X represents a hydrogen or halogen atom, andthe dotted line between 1- and 2-positions represents an optional bond. These compounds are useful an anti-inflammatory agents.
    Type: Grant
    Filed: June 23, 1986
    Date of Patent: August 29, 1989
    Assignee: Jouveinal
    Inventors: Morihiro Mitsukuchi, Tomoyuki Ikemoto, Yoshiaki Watanabe, Kaoru Sota
  • Method for selective methylation of erythromycin A derivatives
    Patent number: 4672109
    Abstract: A method for the selective methylation of a hydroxy group at the 6-position of an erythromycin A derivative which comprises converting an erythromycin A derivative into an erythromycin A 9-oxime derivative, and reacting the resulting ethythromycin A 9-oxime derivative with an methylating agent.
    Type: Grant
    Filed: April 5, 1985
    Date of Patent: June 9, 1987
    Assignee: Taisho Pharmaceutical Co., Ltd.
    Inventors: Yoshiaki Watanabe, Shigeo Morimoto, Masami Goi, Morihiro Mitsukuchi, Takashi Adachi, Jozi Nakagami, Toshifumi Asaka, Tadashi Eguchi, Kaoru Sota