Patents by Inventor Fumihito Muro

Fumihito Muro 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).

  • Patent number: 8653126
    Abstract: To provide a novel compound or an isotope thereof or a pharmaceutically acceptable salt thereof having S1P lyase inhibitory capacity and inducing the decrease in number of lymphocytes, and a pharmaceutical composition containing these as active ingredients. A compound represented by the general formula (I): or the general formula (II): or an isotope thereof or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: February 18, 2014
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Nobuo Machinaga, Jun Chiba, Fumihito Muro, Hiroshi Yuita, Jun Watanabe
  • Publication number: 20130065882
    Abstract: This invention relates to a VLA-4 inhibitory drug, having good oral absorbability and exhibiting sufficient anti-inflammatory effects when administered orally, wherein an active ingredient is represented by formula (I), or a salt thereof: Q represents an optionally-substituted monocyclic or bicyclic nitrogen-containing heterocyclic group having a nitrogen atom as the bonding site; Y represents an oxygen atom or CH2; W represents an optionally-substituted bicyclic aromatic hydrocarbon ring group or an optionally-substituted bicyclic aromatic heterocyclic group; A1 represents a nitrogen atom or C—R3d wherein R3d represents a hydrogen atom, a halogen atom, a C1-8 alkoxy group or a C1-8 alkyl group; R1 represents H or a C1-8 alkyl group; R2 represents H, a halogen, a C1-8 alkoxy
    Type: Application
    Filed: October 3, 2012
    Publication date: March 14, 2013
    Inventors: Nobuo Machinaga, Shin Iimura, Yoshiyuki Yoneda, Jun Chiba, Fumihito Muro, Hideko Hoh, Atsushi Nakayama
  • Publication number: 20120316170
    Abstract: To provide a novel compound or an isotope thereof or a pharmaceutically acceptable salt thereof having S1P lyase inhibitory capacity and inducing the decrease in number of lymphocytes, and a pharmaceutical composition containing these as active ingredients. A compound represented by the general formula (I): or the general formula (II): or an isotope thereof or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: February 17, 2011
    Publication date: December 13, 2012
    Applicant: Daiichi Sankyo Company Limited
    Inventors: Nobuo Machinaga, Jun Chiba, Fumihito Muro, Hiroshi Yuita, Jun Watanabe
  • Publication number: 20120157437
    Abstract: This invention relates to a VLA-4 inhibitory drug, having good oral absorbability and exhibiting sufficient anti-inflammatory effects when administered orally, wherein an active ingredient is represented by formula (I), or a salt thereof: Q represents an optionally-substituted monocyclic or bicyclic nitrogen-containing heterocyclic group having a nitrogen atom as the bonding site; Y represents an oxygen atom or CH2; W represents an optionally-substituted bicyclic aromatic hydrocarbon ring group or an optionally-substituted bicyclic aromatic heterocyclic group; A1 represents a nitrogen atom or C—R3d wherein R3d represents a hydrogen atom, a halogen atom, a C1-8 alkoxy group or a C1-8 alkyl group; R1 represents H or a C1-8 alkyl group; R2 represents H, a halogen, a C1-8 alkoxy group, or an optionally-substituted benzyloxy group; and R3a, R3b and R3c independently represent H, a halogen atom, a C1-8 alkoxy group or a C1-8 alkyl group.
    Type: Application
    Filed: February 1, 2012
    Publication date: June 21, 2012
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Nobuo MACHINAGA, Shin Ilmura, Yoshiyuki Yoneda, Jun Chiba, Fumihito Muro, Hideko Hoh, Atsushi Nakayama
  • Patent number: 8129366
    Abstract: There is provided a VLA-4 inhibitory drug having good oral absorbability and exhibiting sufficient anti-inflammatory effects when administered orally.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: March 6, 2012
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Nobuo Machinaga, Shin Iimura, Yoshiyuki Yoneda, Jun Chiba, Fumihito Muro, Hideko Hoh, Atsushi Nakayama
  • Publication number: 20090233901
    Abstract: There is provided a VLA-4 inhibitory drug having good oral absorbability and exhibiting sufficient anti-inflammatory effects when administered orally.
    Type: Application
    Filed: December 13, 2006
    Publication date: September 17, 2009
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Nobuo Machinaga, Shin Iimura, Yoshiyuki Yoneda, Jun Chiba, Fumihito Muro, Hideko Hoh, Atsushi Nakayama
  • Publication number: 20070232601
    Abstract: An object of the present invention is to provide a compound which selectively inhibits binding of a ligand and ?4?1 integrin (VLA-4), a process for producing the compound, and a medicament containing the compound. A compound represented by the formula (I) etc. or a salt thereof, a process for producing the compound or a salt thereof, a medicament containing the compound or a salt thereof, as well as a preventive and/or a therapeutic agent for a disease caused by cell adhesion, for example, inflammatory reaction, autoimmune disease, cancer metastasis, bronchial asthma, nasal obstruction, diabetes, arthritis, psoriasis, multiple sclerosis, inflammatory bowel disease and rejection reaction at transplantation, containing the compound or a salt thereof as a primary component. [wherein Y1 represents a divalent aryl group etc., V1 represents an aryl group etc., and R11 to R14 represent H, OH or a halogen atom etc.
    Type: Application
    Filed: June 14, 2005
    Publication date: October 4, 2007
    Inventors: Yoshiyuki Yoneda, Atsushi Nakayama, Nobuo Machinaga, Jun Chiba, Fumihito Muro