Patents by Inventor Shigeyuki Kikumoto

Shigeyuki Kikumoto 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: 9388158
    Abstract: The present invention is a production method for a compound represented by the following general formula (V), the method comprising a step of obtaining a compound represented by the following general formula (II) by reacting a compound represented by the following general formula (I) with an acid: wherein, G1 and G2 are each a protecting group that dissociates under acidic conditions.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: July 12, 2016
    Assignee: KUREHA CORPORATION
    Inventors: Shigeyuki Kikumoto, Hisashi Kanno
  • Publication number: 20150315175
    Abstract: A method for producing a cyclopentanone derivative represented by general formula (III) below, wherein a cyclopentanone derivative represented by general formula (III) below can be produced with higher yield since the method comprises a step in which a compound represented by general formula (II) below is obtained by reacting a compound represented by general formula (I) below with an acid.
    Type: Application
    Filed: September 9, 2013
    Publication date: November 5, 2015
    Inventors: Shigeyuki KIKUMOTO, Takashi SHIMOKAWARA
  • Publication number: 20150025254
    Abstract: The present invention is a production method for a compound represented by the following general formula (V), the method comprising a step of obtaining a compound represented by the following general formula (II) by reacting a compound represented by the following general formula (I) with an acid: wherein, G1 and G2 are each a protecting group that dissociates under acidic conditions.
    Type: Application
    Filed: December 10, 2012
    Publication date: January 22, 2015
    Inventors: Shigeyuki Kikumoto, Hisashi Kanno
  • Patent number: 8722719
    Abstract: Provided is an ester of 3-[(4-dipropylamino-butyl)(4-{[(1H-imidazole-2-ylmethyl)(1-methyl-1H-imidazole-2-ylmethyl)amino]methyl}benzyl)amino]propionic acid which is easily hydrolyzed in serum. The amine compound of the present invention is an ester compound represented by general formula (1). (In general formula (1), n is 1-4, and R1 and R2 represent an alkyl group having 1-3 carbon atoms.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: May 13, 2014
    Assignee: Kureha Corporation
    Inventors: Ryo Matsui, Toru Yamazaki, Shigeyuki Kikumoto
  • Publication number: 20130245280
    Abstract: Provided is an ester of 3-[(4-dipropylamino-butyl)(4-{[(1H-imidazole-2-ylmethyl)(1-methyl-1H-imidazole-2-ylmethyl)amino]methyl}benzyl)amino]propionic acid which is easily hydrolyzed in serum. The amine compound of the present invention is an ester compound represented by general formula (1). (In general formula (1), n is 1-4, and R1 and R2 represent an alkyl group having 1-3 carbon atoms.
    Type: Application
    Filed: September 30, 2011
    Publication date: September 19, 2013
    Applicant: KUREHA CORPORATION
    Inventors: Ryo Matsui, Toru Yamazaki, Shigeyuki Kikumoto
  • Publication number: 20110172212
    Abstract: Novel amine compounds which are represented by the following formula (1) and efficacious against diseases such as a viral infectious disease with HIV, rheumatism, and cancer metastasis; typically, A1 and A2 represent a hydrogen atom or a substitutable monocyclic or polycyclic heteroaromatic ring and W represents a substitutable benzene ring or any group represented by the following formula (10) or (11): where X represents O, CH2, C(?O), NR11, or CHR35 and D represents a group represented by the following formula (6): [Formula 4] -Q-Y—B??(6) where Q represents a single bond, NR12, or a group represented by the formula (13): and Y represents a group represented by the following formula (7): [Formula 6] —(CR18R19)m3- or —(CR20R21)m4-z-(CR22R23)m5-??(7) where z represents a substitutable monocyclic or polycyclic aromatic ring; and B represents —NR25R26; and R1 to R26 in the above formulae represent a hydrogen atom, an alkyl group, an alkenyl group, or an alkynyl group.
    Type: Application
    Filed: March 18, 2011
    Publication date: July 14, 2011
    Applicant: KUREHA CORPORATION
    Inventors: Atsushi SAITOU, Shigeyuki Kikumoto, Masahiro Ono, Ryo Matsui, Masashi Yamamoto, Tomohiro Sawa, Shigeru Suzuki, Mikiro Yanaka
  • Patent number: 7932281
    Abstract: Amine compounds represented by Formula (1) are efficacious against diseases such as a viral infectious disease with HIV, rheumatism, and cancer metastasis:
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: April 26, 2011
    Assignee: Kureha Corporation
    Inventors: Atsushi Saitou, Shigeyuki Kikumoto, Masahiro Ono, Ryo Matsui, Masashi Yamamoto, Tomohiro Sawa, Shigeru Suzuki, Mikiro Yanaka
  • Publication number: 20110046113
    Abstract: It is intended to provide novel amine compounds which are efficacious against diseases such as infection with HIV virus, rheumatism and cancer metastasis. Namely, amine compounds represented by the following general formula (1): In a typical case, A1 and A2 represent each an optionally substituted monocyclic or polycyclic aromatic heterocycle; W represents cyclic C3-10 alkylene, an optionally substituted monocyclic or polycyclic aromatic heterocycle, a monocyclic or polycyclic aromatic ring or a partly saturated polycyclic aromatic ring; X represents O, CH2, C(?O) or NR11; and D is a group represented by the following general formula (4) or (6). In the formula (6), Q represents a single bond, S, O or NR12; and Y is a group represented by the following general formula (7). —(CR18R19)m3— Or —(CR20R21)m4-z-(CR22R23)m5??(7) z represents an optionally substituted monocyclic or polycyclic aromatic ring. In the formula (6), B represents NR25R26.
    Type: Application
    Filed: October 12, 2010
    Publication date: February 24, 2011
    Applicant: KUREHA CORPORATION
    Inventors: Toru YAMAZAKI, Shigeyuki KIKUMOTO, Masahiro ONO, Atsushi SAITOU, Haruka TAKAHASHI, Sei KUMAKURA, Kunitaka HIROSE, Mikiro YANAKA, Yoshiyuki TAKEMURA, Shigeru SUZUKI, Ryo MATSUI
  • Patent number: 7833991
    Abstract: It is intended to provide novel amine compounds which are efficacious against diseases such as infection with HIV virus, rheumatism and cancer metastasis. Namely, amine compounds represented by the following general formula (1): In a typical case, A1 and A2 represent each an optionally substituted monocyclic or polycyclic aromatic heterocycle; W represents cyclic C3-10 alkylene, an optionally substituted monocyclic or polycyclic aromatic heterocycle, a monocyclic or polycyclic aromatic ring or a partly saturated polycyclic aromatic ring; X represents O, CH2, C(?O) or NR11; and D is a group represented by the following general formula (4) or (6). In the formula (6), Q represents a single bond, S, O or NR12; and Y is a group represented by the following general formula (7). z represents an optionally substituted monocyclic or polycyclic aromatic ring. In the formula (6), B represents NR25R26. In the above formulae, R1 to R26 each represents hydrogen, alkyl, alkenyl or alkynyl.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: November 16, 2010
    Assignee: Kureha Corporation
    Inventors: Toru Yamazaki, Shigeyuki Kikumoto, Masahiro Ono, Atsushi Saitou, Haruka Takahashi, Sei Kumakura, Kunitaka Hirose, Mikiro Yanaka, Yoshiyuki Takemura, Shigeru Suzuki, Ryo Matsui
  • Publication number: 20070208007
    Abstract: Novel amine compounds which are represented by the following formula (1) and efficacious against diseases such as a viral infectious disease with HIV, rheumatism, and cancer metastasis; typically, A1 and A2 represent a hydrogen atom or a substitutable monocyclic or polycyclic heteroaromatic ring and W represents a substitutable benzene ring or any group represented by the following formula (10) or (11): where X represents O, CH2, C(?O), NR11, or CHR35 and D represents a group represented by the following formula (6): where Q represents a single bond, NR12, or a group represented by the formula (13): and Y represents a group represented by the following formula (7): where z represents a substitutable monocyclic or polycyclic aromatic ring; and B represents —NR25R26; and R1 to R26 in the above formulae represent a hydrogen atom, an alkyl group, an alkenyl group, or an alkynyl group.
    Type: Application
    Filed: March 10, 2005
    Publication date: September 6, 2007
    Inventors: Atsushi Saitou, Shigeyuki Kikumoto, Masahiro Ono, Ryo Matsui, Masashi Yamamoto, Tomohiro Sawa, Shigeru Suzuki, Mikiro Yanaka
  • Publication number: 20070208033
    Abstract: It is intended to provide novel amine compounds which are efficacious against diseases such as infection with HIV virus, rheumatism and cancer metastasis. Namely, amine compounds represented by the following general formula (1): In a typical case, A1 and A2 represent each an optionally substituted monocyclic or polycyclic aromatic heterocycle; W represents cyclic C3-10 alkylene, an optionally substituted monocyclic or polycyclic aromatic heterocycle, a monocyclic or polycyclic aromatic ring or a partly saturated polycyclic aromatic ring; X represents O, CH2, C(?O) or NR11; and D is a group represented by the following general formula (4) or (6). In the formula (6), Q represents a single bond, S, O or NR12; and Y is a group represented by the following general formula (7). z represents an optionally substituted monocyclic or polycyclic aromatic ring. In the formula (6), B represents NR25R26. In the above formulae, R1 to R26 each represents hydrogen, alkyl, alkenyl or alkynyl.
    Type: Application
    Filed: February 9, 2007
    Publication date: September 6, 2007
    Inventors: Toru Yamazaki, Shigeyuki Kikumoto, Masahiro Ono, Atsushi Saitou, Haruka Takahashi, Sei Kumakura, Kunitaka Hirose, Mikiro Yanaka, Yoshiyuki Takemura, Shigeru Suzuki, Ryo Matsui
  • Patent number: 7176227
    Abstract: Novel amine compounds which are efficacious against diseases such as infection with HIV virus, rheumatism, and cancer metastasis include compounds represented by the following general formula (1), a pharmacologically acceptable salt thereof, or a prodrug thereof: wherein each of n1, n2, and n3 is an integer of 1; each of R1, R2, R3, R4, R5, and R6 is independently a hydrogen atom; A1 is imidazole; A2 is imidazole or imidazole substituted with an alkyl group; W is a phenyl group or naphthyl group; X is CH2; D is a group represented by -Q-Y—B, wherein Q is NR12 and R12 is a hydrogen atom or an alkyl group; Y is (CH2)m3 and m3 is an integer of 2 to 4; and B is N(R25R26), wherein each of R25 and R26 are independently a hydrogen atom, a C1–C6 alkyl group or a C3–C6 cycloalkyl group.
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: February 13, 2007
    Assignee: Kureha Corporation
    Inventors: Toru Yamazaki, Shigeyuki Kikumoto, Masahiro Ono, Atsushi Saitou, Haruka Takahashi, Sei Kumakura, Kunitaka Hirose, Mikiro Yanaka, Yoshiyuki Takemura, Shigeru Suzuki, Ryo Matsui
  • Publication number: 20050165063
    Abstract: It is intended to provide novel amine compounds which are efficacious against diseases such as infection with HIV virus, rheumatism and cancer metastasis. Namely, amine compounds represented by the following general formula (1): In a typical case, A1 and A2 represent each an optionally substituted monocyclic or polycyclic aromatic heterocycle; W represents cyclic C3-10 alkylene, an optionally substituted monocyclic or polycyclic aromatic heterocycle, a monocyclic or polycyclic aromatic ring or a partly saturated polycyclic aromatic ring; X represents O, CH2, C(?O) or NR11; and D is a group represented by the following general formula (4) or (6). In the formula (6), Q represents a single bond, S, O or NR12; and Y is a group represented by the following general formula (7). z represents an optionally substituted monocyclic or polycyclic aromatic ring. In the formula (6), B represents NR25R26. In the above formulae, R1 to R26 each represents hydrogen, alkyl, alkenyl or alkynyl.
    Type: Application
    Filed: September 5, 2003
    Publication date: July 28, 2005
    Applicant: Kureha Chemical Industry Company, Limited.
    Inventors: Toru Yamazaki, Shigeyuki Kikumoto, Masahiro Ono, Atsushi Saitou, Haruka Takahashi, Sei Kumakura, Kunitaka Hirose, Mikiro Yanaka, Yoshiyuki Takemura, Shigeru Suzuki, Ryo Matsui