Patents by Inventor Kazunari Nakao

Kazunari Nakao 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).

  • Publication number: 20120088746
    Abstract: Compounds are disclosed that have a formula represented by the following: Formula (I). The compounds may be prepared as pharmaceutical compositions, and may be used for the prevention and treatment of a variety of conditions in mammals including humans, including by way of non-limiting example, pain, inflammation, traumatic injury, and others.
    Type: Application
    Filed: May 10, 2007
    Publication date: April 12, 2012
    Applicants: PFIZER INC., RENOVIS, INC.
    Inventors: Yuji Shishido, Kazunari Nakao, Satoshi Nagayama, Hirotaka Tanaka, Matthew Alexander James Duncton, Matthew Cox, John Kincaid, Kiran Sahasrabudhe, Maria de Los Angeles Estiarte-Martinez
  • Patent number: 8134004
    Abstract: This invention provides a compound of the formula (I): And their use for the treatment of disease conditions caused by overactivation of the VR1 receptor such as pain, or the like in mammal. This invention also provides a pharmaceutical composition comprising the above compound.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: March 13, 2012
    Assignee: Pfizer Inc.
    Inventors: Tadashi Kawashima, Satoshi Nagayama, Kazunari Nakao, Hirotaka Tanaka
  • Patent number: 8084476
    Abstract: This invention provides a compound of the formula (I): wherein X represents a carbon atom or the like: Y represents imino, or the like: R1 represents an alkyl group having from 1 to 6 carbon atoms or the like: R2 and R3 independently represents a hydrogen atom or the like. These compounds are useful for the treatment of disease conditions mediated by prostaglandin such as pain, or the like in mammalian. This invention also provides a pharmaceutical composition comprising the above compound.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: December 27, 2011
    Assignee: Raqualia Pharma Inc.
    Inventors: Hiroki Koike, Kana Kon-i, Yukari Matsumoto, Kazunari Nakao, Yoshiyuki Okumura, Tatsuya Yamagishi
  • Patent number: 7915448
    Abstract: This invention provides a compound of the formula (I): wherein A and B are independently CR12 or N; D and E are each independently CR9 or N; R1 represents (C1-C6)alkyl; R2 represents hydrogen, halogen, hydroxy, (C1-C6) alkyl, halo(C1-C6) alkyl, hydroxy(C1-C6) alkyl, (C1-C6)alkoxy or (C1-C6)alkoxy-(C1-C6)alkyl; R3, R4, R5, R6, R10 and R11 each independently represent hydrogen, halogen, (C1-C6)alkyl, halo(C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkyl or (C1-C6)alkoxy-(C1-C6)alkyl; or R3 and R4 are taken together with the carbon atom to which they are attached to form a 3- to 7-membered carbocyclic ring or heterocyclic ring in which one or two non-adjacent carbon atoms are optionally replaced by an oxygen atom, a sulfur atom or NH; R7 and R9 each independently represent hydrogen, halogen, (C1-C6)alkyl, halo(C1-C6)alkyl, hydroxy(C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkoxy, (C1-C6)alkoxy-(C1-C6)alkyl, (C1-C6)alkoxy-(C1-C6)alkoxy, (C1-C6)alkylthio, (C1-C6)alkylsulfinyl, (C1-C6)alkylsulfonyl, NH2, [(C1-C6
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: March 29, 2011
    Assignee: Pfizer Inc.
    Inventors: Takeshi Hanazawa, Misato Hirano, Tadashi Inoue, Satoshi Nagayama, Kazunari Nakao, Yuji Shishido, Hirotaka Tanaka
  • Publication number: 20100035880
    Abstract: This invention provides a compound of the formula (I): wherein A and B are independently CR12 or N; D and E are each independently CR9 or N; R1 represents (C1-C6)alkyl; R2 represents hydrogen, halogen, hydroxy, (C1-C6) alkyl, halo(C1-C6) alkyl, hydroxy(C1-C6)alkyl, (C1-C6)alkoxy or (C1-C6)alkoxy-(C1-C6)alkyl; R3, R4, R5, R6, R10 and R11 each independently represent hydrogen, halogen, (C1-C6)alkyl, halo(C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkyl or (C1-C6)alkoxy-(C1-C6)alkyl; or R3 and R4 are taken together with the carbon atom to which they are attached to form a 3- to 7-membered carbocyclic ring or heterocyclic ring in which one or two non-adjacent carbon atoms are optionally replaced by an oxygen atom, a sulfur atom or NH; R7 and R9 each independently represent hydrogen, halogen, (C1-C6)alkyl, halo(C1-C6)alkyl, hydroxy(C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkoxy, (C1-C6)alkoxy-(C1-C6)alkyl, (C1-C6)alkoxy-(C1-C6)alkoxy, (C1-C6)alkylthio, (C1-C6)alkylsulfinyl, (C1-C6)alkylsulfonyl, NH2, [(C1-C6)
    Type: Application
    Filed: October 13, 2009
    Publication date: February 11, 2010
    Inventors: TAKESHI HANAZAWA, MISATO HIRANO, TADASHI INOUE, SATOSHI NAGAYAMA, KAZUNARI NAKAO, YUJI SHISHIDO, HIROTAKA TANAKA
  • Patent number: 7622589
    Abstract: This invention provides a compound of the formula (I): wherein, variables A, B, D, E, and R1 to R11 are as defined in the specification.
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: November 24, 2009
    Assignee: Pfizer Inc.
    Inventors: Takeshi Hanazawa, Misato Hirano, Tadashi Inoue, Satoshi Nagayama, Kazunari Nakao, Yuji Shishido, Hirotaka Tanaka
  • Publication number: 20090253740
    Abstract: This invention provides a compound of the formula (I): And their use for the treatment of disease conditions caused by overactivation of the VR1 receptor such as pain, or the like in mammal. This invention also provides a pharmaceutical composition comprising the above compound.
    Type: Application
    Filed: July 2, 2007
    Publication date: October 8, 2009
    Inventors: Tadashi Kawashima, Satoshi Nagayama, Kazunari Nakao, Hirotaka Tanaka
  • Patent number: 7566739
    Abstract: This invention provides compounds of the formula (I) useful for the treatment of disease conditions caused by over activation of Vr1 receptors such as pain or the like in mammals as well as compositions comprising them.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: July 28, 2009
    Assignee: Pfizer Inc.
    Inventors: Takeshi Hanazawa, Misato Hirano, Tadashi Inoue, Satoshi Nagayama, Kazunari Nakao, Yuji Shishido, Hirotaka Tanaka
  • Publication number: 20090163558
    Abstract: This invention provides a compound of the formula (I): wherein X represents a carbon atom or the like: Y represents imino, or the like: R1 represents an alkyl group having from 1 to 6 carbon atoms or the like: R2 and R3 independently represents a hydrogen atom or the like. These compounds are useful for the treatment of disease conditions mediated by prostaglandin such as pain, or the like in mammalian. This invention also provides a pharmaceutical composition comprising the above compound.
    Type: Application
    Filed: February 10, 2009
    Publication date: June 25, 2009
    Applicant: RaQualia Pharma Inc.
    Inventors: Hiroki Koike, Kana Kon-i, Yukari Matsumoto, Kazunari Nakao, Yoshiyuki Okumura, Tatsuya Yamagishi
  • Patent number: 7534914
    Abstract: This invention provides a compound of the formula (I): wherein X represents a carbon atom or the like: Y represents imino, or the like: R1 represents an alkyl group having from 1 to 6 carbon atoms or the like: R2 and R3 independently represents a hydrogen atom or the like. These compounds are useful for the treatment of disease conditions mediated by prostaglandin such as pain, or the like in mammalian. This invention also provides a pharmaceutical composition comprising the above compound.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: May 19, 2009
    Assignee: ReQualia Pharma Inc.
    Inventors: Hiroki Koike, Kana Kon-i, Yukari Matsumoto, Kazunari Nakao, Yoshiyuki Okumura, Tatsuya Yamagishi
  • Patent number: 7479564
    Abstract: This invention provides a compound of the formula (I): or the pharmaceutically acceptable salts thereof, wherein Y1, Y2, Y3 and Y4 are independently selected from N, CH, etc.; R1 is H, C1-8 alkyl, etc.; Q1 is a 5-12 membered monocyclic or bicyclic aromatic ring optionally containing up to 4 heteroatoms selected from O, N and S, etc.; A is a 5-6 membered monocyclic aromatic ring optionally containing up to 3 heteroatoms selected from O, N and S, etc.; B is C1-6 alkylene optionally substituted with an oxo group, etc.; W is NH, O, etc.; R2 is H, C1-4 alkyl, etc.; Z is a 5-12 membered monocyclic or bicyclic aromatic ring optionally containing up to 3 heteroatoms selected from O, N and S, etc.; L is halo, C1-4 alkyl, etc.; m is 0, 1 or 2; R3 and R4 are independently selected from H and C1-4 alkyl ; R5 is H, C1-4 alkyl, etc.; Q2 is a 5-12 membered monocyclic or bicyclic aromatic ring or tricyclic ring optionally containing up to 3 heteroatoms selected from O, N and S, etc.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: January 20, 2009
    Assignee: RaQualia Pharma Inc.
    Inventors: Kazunari Nakao, Yoshiyuki Okumura, Miyako Matsumizu, Naomi Ueno, Yoshinobu Hashizume, Tomoki Kato, Akiyoshi Kawai, Yoriko Miyake, Seiji Nukui, Katsuhiro Shinjyo, Kana Taniguchi
  • Publication number: 20070155732
    Abstract: This invention provides a compound of the formula (I): or the pharmaceutically acceptable salts thereof, wherein Y1, Y2, Y3 and Y4 are independently selected from N, CH, etc.; R1 is H, C1-8 alkyl, etc.; Q1 is a 5-12 membered monocyclic or bicyclic aromatic ring optionally containing up to 4 heteroatoms selected from O, N and S, etc.; A is a 5-6 membered monocyclic aromatic ring optionally containing up to 3 heteroatoms selected from O, N and S, etc.; B is C1-6 alkylene optionally substituted with an oxo group, etc.; W is NH, O, etc.; R2 is H, C1-4 alkyl, etc.; Z is a 5-12 membered monocyclic or bicyclic aromatic ring optionally containing up to 3 heteroatoms selected from O, N and S, etc.; L is halo, C1-4 alkyl, etc.; m is 0, 1 or 2; R3 and R4 are independently selected from H and C1-4 alkyl ; R5 is H, C1-4 alkyl, etc.; Q2 is a 5-12 membered monocyclic or bicyclic aromatic ring or tricyclic ring optionally containing up to 3 heteroatoms selected from O, N and S, etc.
    Type: Application
    Filed: November 3, 2006
    Publication date: July 5, 2007
    Inventors: Kazunari Nakao, Yoshiyuki Okumura, Miyako Matsumizu, Naomi Ueno, Yoshinobu Hashizume, Tomoki Kato, Akiyoshi Kawai, Yoriko Miyake, Seiji Nukui, Katsuhiro Shinjyo, Kana Taniguchi
  • Patent number: 7238714
    Abstract: This invention provides a compound of the formula (I): wherein A represents a phenyl group or the like: B represents an aryl or the like: E represents a 1,4-phenylene group; R1 and R2 independently represent a hydrogen atom or the like: R3 and R4 independently represent a hydrogen atom or the like: R5 represents —CO2H or the like: R6 represents an alkyl group having from 1 to 6 carbon atoms or the like: X represents a methylene group or the like. These compounds are useful for the treatment of disease conditions mediated by prostaglandin such as pain, or the like in mammalian. This invention also provides a pharmaceutical composition comprising the above compound.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: July 3, 2007
    Assignee: Pfizer Japan, Inc.
    Inventors: Kazunari Nakao, Seiji Nukui, Yoshiyuki Okumura, Tatsuya Yamagishi
  • Patent number: 7214824
    Abstract: This invention provides a compound of the formula (I): wherein R1 represents a (C1–C6)alkyl group; R2 represents a hydrogen atom, a halogen atom, a hydroxy group, a (C1–C6)alkyl group or a (C1–C6)alkoxy group; R3, R4, R5 and R6 each independently represents a hydrogen atom, a (C1–C6)alkyl, or a halogen atom; R7 represents a hydrogen atom, a halogen atom, a hydroxy group, a (C1–C6)alkyl group optionally substituted with a piperidino group, a (C1–C6)alkoxy group optionally substituted with a 3–7 membered cycloalkyl ring, a hydroxy(C1–C6)alkoxy group, a (C1–C6)alkoxy-(C1–C6)alkyl group, a (C1–C6)alkoxy-(C1–C6)alkoxy group, a halo (C1–C6)alkyl group, a (C1–C6)alkylthio group, a (C1–C6)alkylsulfinyl group or a (C1–C6)alkylsulfonyl group; R8 represents a (C1–C6)alkyl group, a halo(C1–C6)alkyl group, a (C1–C6)alkoxy group, a hydroxy(C1–C6)alkoxy group, a (C1–C6)alkoxy-(C1–C6)alkyl group or a (C1–C6)alkoxy-(C1–C6)alkoxy group; or R7 and R8, when adjacent to each other, taken together with the carbon atoms to whic
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: May 8, 2007
    Assignee: Pfizer Inc.
    Inventors: Tadashi Inoue, Satoshi Nagayama, Kazunari Nakao
  • Patent number: 7141580
    Abstract: This invention provides a compound of the formula (I): or the pharmaceutically acceptable salts thereof, wherein Y1, Y2, Y3 and Y4 are independently selected from N, CH, etc.; R1 is H, C1-8 alkyl, etc.; Q1 is a 5–12 membered monocyclic or bicyclic aromatic ring optionally containing up to 4 heteroatoms selected from O, N and S, etc.; A is a 5–6 membered monocyclic aromatic ring optionally containing up to 3 heteroatoms selected from O, N and S, etc.; B is C1-6 alkylene optionally substituted with an oxo group, etc.; W is NH, O, etc.; R2 is H, C1-4 alkyl, etc.; Z is a 5–12 membered monocyclic or bicyclic aromatic ring optionally containing up to 3 heteroatoms selected from O, N and S, etc.; L is halo, C1-4 alkyl, etc.; m is 0, 1 or 2; R3 and R4 are independently selected from H and C1-4 alkyl; R5 is H, C1-4 alkyl, etc.; Q2 is a 5–12 membered monocyclic or bicyclic aromatic ring or tricyclic ring optionally containing up to 3 heteroatoms selected from O, N and S, etc.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: November 28, 2006
    Assignee: Pfizer Inc.
    Inventors: Kazunari Nakao, Yoshiyuki Okumura, Miyako Matsumizu, Naomi Ueno, Yoshinobu Hashizume, Tomoki Kato, Akiyoshi Kawai, Yoriko Miyake, Seiji Nukui, Katsuhiro Shinjyo, Kana Taniguchi
  • Publication number: 20060211741
    Abstract: This invention provides a compound of the formula (I): wherein A and B are independently CR12 or N; D and E are each independently CR9 or N; R1 represents (C1-C6)alkyl; R2 represents hydrogen, halogen, hydroxy, (C1-C6)alkyl, halo(C1-C6)alkyl, hydroxy(C1-C6)alkyl, (C1-C6)alkoxy or (C1-C6)alkoxy-(C1-C6)alkyl; R3, R4, R5, R6, R10 and R11 each independently represent hydrogen, halogen, (C1-C6)alkyl, halo(C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkyl or (C1-C6)alkoxy-(C1-C6)alkyl; or R3 and R4 are taken together with the carbon atom to which they are attached to form a 3- to 7-membered carbocyclic ring or heterocyclic ring in which one or two non-adjacent carbon atoms are optionally replaced by an oxygen atom, a sulfur atom or NH; R7 and R9 each independently represent hydrogen, halogen, (C1-C6)alkyl, halo(C1-C6)alkyl, hydroxy(C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkoxy, (C1-C6)alkoxy-(C1-C6)alkyl, (C1-C6)alkoxy-(C1-C6)alkoxy, (C1-C6)alkylthio, (C1-C6)alkylsulfinyl, (C1-C6)alkylsulfonyl, NH2, [(C1-C6)a
    Type: Application
    Filed: March 17, 2006
    Publication date: September 21, 2006
    Inventors: Takeshi Hanazawa, Misato Hirano, Tadashi Inoue, Satoshi Nagayama, Kazunari Nakao, Yuji Shishido, Hirotaka Tanaka
  • Publication number: 20060205980
    Abstract: This invention provides a compound of the formula (I): wherein R1 represents (C1-C6)alkyl; R2 represents a hydrogen atom, a halogen atom, a hydroxy group, (C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkyl, (C1-C6)alkoxy-(C1-C6)alkyl or halo(C1-C6)alkyl; R3 represents a halogen atom, (C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkoxy, (C1-C6)alkoxy-(C1-C6)alkyl, (C1-C6)alkoxy-(C1-C6)alkoxy, halo(C1-C6)alkyl, (C1-C6)alkylthio, (C1-C6)alkylsulfinyl, (C1-C6)alkylsulfonyl, [(C1-C6)alkyl]NH—, or [(C1-C6)alkyl]2N—; R4 represents a halogen atom, (C1-C6)alkyl, halo(C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkoxy, (C1-C6)alkoxy-(C1-C6)alkyl, (C1-C6)alkoxy-(C1-C6)alkoxy, [(C1-C6)alkyl]NH—, or [(C1-C6)alkyl]2N—; R5 represents a halogen atom, (C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkoxy, (C1-C6)alkoxy-(C1-C6)alkyl, (C1-C6)alkoxy-(C1-C6)alkoxy, halo(C1-C6)alkyl, (C1-C6)alkylthio, (C1-C6)alkylsulfinyl, (C1-C6)alkylsulfonyl, [(C1-C6)alkyl]NH—, [(C1-C6)alkyl]2N—, H2N—(C1-C6)alkoxy, (C1-C6)alkyl-NH—(C1-C6)alkoxy,
    Type: Application
    Filed: March 10, 2006
    Publication date: September 14, 2006
    Inventors: Takeshi Hanazawa, Misato Hirano, Tadashi Inoue, Satoshi Nagayama, Kazunari Nakao, Yuji Shishido, Hirotaka Tanaka
  • Publication number: 20060100460
    Abstract: This invention provides a compound of the formula (I): wherein R1 represents a (C1-C6)alkyl group; R2 represents a hydrogen atom, a halogen atom, a hydroxy group, a (C1-C6) alkyl group or a (C1-C6) alkoxy group; R3, R4, R5 and R6 each independently represents a hydrogen atom, a (C1-C6) alkyl, or a halogen atom; R7 represents a hydrogen atom, a halogen atom, a hydroxy group, a (C1-C6) alkyl group optionally substituted with a piperidino group, a (C-1-C6)alkoxy group optionally substituted with a 3-7 membered cycloalkyl ring, a hydroxy(C1-C6)alkoxy group, a (C1-C6)alkoxy-(C1-C6)alkyl group, a (C1-C6)alkoxy-(C1-C6)alkoxy group, a halo (C1-C6)alkyl group, a (C1-C6)alkylthio group, a (C1-C6)alkylsulfinyl group or a (C1-C6)alkylsulfonyl group; R5 represents a (C1-C6)alkyl group, a halo(C1-C6)alkyl group, a (C1-C6)alkoxy group, a hydroxy(C1-C6)alkoxy group, a (C1-C6)alkoxy-(C1-C6)alkyl group or a (C1-C6)alkoxy-(C1-C6)alkoxy group; or R7 and R8, when adjacent to each other, taken together with the carbon atoms t
    Type: Application
    Filed: November 9, 2005
    Publication date: May 11, 2006
    Inventors: Tadashi Inoue, Satoshi Nagayama, Kazunari Nakao
  • Patent number: 7001917
    Abstract: This invention provides a compound of the formula (I): wherein: R1 represents a hydrogen atom, an alkyl group, etc.; R2 represents a hydrogen atom, a halogen atom, etc.; R3 represents an alkyl group, etc.; R4 represents an aryl group, etc.; A represents an aryl1, etc; B represents an alkylene etc.; X represents NH, etc.; or a pharmaceutically acceptable ester of such compound, and pharmaceutically acceptable salts thereof. These compounds are useful for the treatment of medical conditions mediated by prostaglandin such as pain, fever or inflammation, etc. This invention also provides a pharmaceutical composition comprising the above compound.
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: February 21, 2006
    Assignee: Warner Lambert Company LLC
    Inventors: Misato Hirano, Kazunari Nakao, Seiji Nukui, Tatsuya Yamagishi
  • Publication number: 20050267170
    Abstract: This invention provides a compound of the formula (I): wherein X represents a carbon atom or the like: Y represents imino, or the like: R1 represents an alkyl group having from 1 to 6 carbon atoms or the like: R2 and R3 independently represents a hydrogen atom or the like. These compounds are useful for the treatment of disease conditions mediated by prostaglandin such as pain, or the like in mammalian. This invention also provides a pharmaceutical composition comprising the above compound.
    Type: Application
    Filed: April 29, 2005
    Publication date: December 1, 2005
    Inventors: Hiroki Koike, Kana Kon-i, Yukari Matsumoto, Kazunari Nakao, Yoshiyuki Okumura, Tatsuya Yamagishi