Patents by Inventor Teruhiko Taishi

Teruhiko Taishi 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: 20150232479
    Abstract: The present invention is to provide a novel compound (I) shown below, having the anti-virus activity; particularly the HIV integraso inhibitory activity, and a drug containing the same, particularly an anti-HIV drug, as well as a process and an intermediate thereof. (wherein Z1 is NR4; R1 is hydrogen or lower alkyl; X is a single bond, a hetero atom group selected from O, S, SO, SO2 and NH, or lower alkylene or lower alkenylene in which the hetero atom group may intervene; R2 is optionally substituted aryl; R3 is hydrogen, a halogen, hydroxy, optionally substituted lower alkyl etc; and R4 and Z2 part taken together forms a ring, to form a polycyclic compound, including e.g., a tricyclic or tetracyclic compound.
    Type: Application
    Filed: April 30, 2015
    Publication date: August 20, 2015
    Inventors: Brian A. JOHNS, Takashi KAWASUJI, Teruhiko TAISHI, Yoshiyuki TAODA
  • Patent number: 9051337
    Abstract: The present invention is to provide a novel compound (I) shown below, having the anti-virus activity; particularly the HIV integrase inhibitory activity, and a drug containing the same, particularly an anti-HIV drug, as well as a process and an intermediate thereof. (wherein Z1 is NR4; R1 is hydrogen or lower alkyl; X is a single bond, a hetero atom group selected from O, S, SO, SO2 and NH, or lower alkylene or lower alkenylene in which the hetero atom group may intervene; R2 is optionally substituted aryl; R3 is hydrogen, a halogen, hydroxy, optionally substituted lower alkyl etc; and R4 and Z2 part taken together forms a ring, to form a polycyclic compound, including e.g., a tricyclic or tetracyclic compound.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: June 9, 2015
    Assignees: Shionogi & Co., Ltd., ViiV Healthcare Company
    Inventors: Brian A. Johns, Takashi Kawasuji, Teruhiko Taishi, Yoshiyuki Taoda
  • Publication number: 20140200209
    Abstract: The present invention is to provide a novel compound (I) shown below, having the anti-virus activity; particularly the HIV integrase inhibitory activity, and a drug containing the same, particularly an anti-HIV drug, as well as a process and an intermediate thereof. (wherein Z1 is NR4; R1 is hydrogen or lower alkyl; X is a single bond, a hetero atom group selected from O, S, SO, SO2 and NH, or lower alkylene or lower alkenylene in which the hetero atom group may intervene; R2 is optionally substituted aryl; R3 is hydrogen, a halogen, hydroxy, optionally substituted lower alkyl etc; and R4 and Z2 part taken together forms a ring, to form a polycyclic compound, including e.g., a tricyclic or tetracyclic compound.
    Type: Application
    Filed: March 14, 2014
    Publication date: July 17, 2014
    Applicants: ViiV Healthcare Company, Shionogi & Co., Ltd.
    Inventors: Brian A. JOHNS, Takashi KAWASUJI, Teruhiko TAISHI, Yoshiyuki TAODA
  • Patent number: 8778943
    Abstract: The present invention is directed to a class of substituted 10-hydroxy-9,11-dioxo-2,3,4a,5,9,11,13,13a-octahydro-1H-pyrido[1,2-a]pyrrolo[1?,2?:3,4]imidazo[1,2-d]pyrazine-8-carboxamides useful as anti-HIV agents. The compounds have the formula (I-1-1): wherein ring A is an optionally substituted hexahydro-1H-pyrrolo[1,2-c]-imidazole; R14 and RX are independently hydrogen or optionally substituted lower alkyl; R3 is selected from various groups; R1 is hydrogen or lower alkyl; R is halogen; m is 0, 1, 2 or 3; or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: July 15, 2014
    Assignees: Shionogi & Co., Ltd., ViiV Healthcare Company
    Inventors: Brian A. Johns, Takashi Kawasuji, Teruhiko Taishi, Yoshiyuki Taoda
  • Patent number: 8410103
    Abstract: The present invention is directed to a substituted 2,3,5,7,11,11a-hexahydro[1,3]oxazolo[3,2 -a]pyrido[1,2-d]pyrazine-5,7-dione useful as an anti-HIV agent, which has the formula: as well as pharmaceutically acceptable salts thereof, compostions thereof, and methods of use thereof.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: April 2, 2013
    Assignees: Shionogi & Co., Ltd., VIIV Healthcare Company
    Inventors: Brian Alvin Johns, Takashi Kawasuji, Teruhiko Taishi, Yoshiyuki Taoda
  • Publication number: 20120208998
    Abstract: A compound having an anti-viral activity, particularly a HIV integrase inhibitory activity, and a pharmaceutical composition, particularly an anti-HIV agent, of the formula: wherein R1, R2, R3, R4, B1 and B2 are defined in the specification.
    Type: Application
    Filed: March 23, 2012
    Publication date: August 16, 2012
    Inventors: Hiroshi YOSHIDA, Takashi KAWASUJI, Teruhiko TAISHI, Yoshiyuki TAODA
  • Patent number: 8188271
    Abstract: Is to provide a novel compound having an anti-viral activity, particularly a HIV integrase inhibitory activity, and a pharmaceutical composition, particularly an anti-HIV agent. (wherein R1 is hydrogen or lower alkyl; X is lower alkylene etc.; R2 is optionally substituted aryl; R3 is hydrogen, halogen, hydroxy, optionally substituted lower alkyl etc.; R4 is hydrogen, optionally substituted lower alkyl, optionally substituted cycloalkyl, optionally substituted cycloalkyl lower alkyl, optionally substituted aryl, optionally substituted aryl lower alkyl, optionally substituted heterocyclic group, optionally substituted heterocyclic lower alkyl etc.; A broken line indicates the presence or absence of a bond; B1 and B2 are such that any one of them is CR20R21, and the other is NR22 and, in this case, there is no broken line.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: May 29, 2012
    Assignee: Shionogi & Co., Ltd.
    Inventors: Hiroshi Yoshida, Takashi Kawasuji, Teruhiko Taishi, Yoshiyuki Taoda
  • Publication number: 20120115875
    Abstract: The present invention is to provide a novel compound (I) shown below, having the anti-virus activity, particularly the HIV integrase inhibitory activity, and a drug containing the same, particularly an anti-HIV drug, as well as a process and an intermediate thereof. (wherein Z1 is NR4; R1 is hydrogen or lower alkyl; X is a single bond, a hetero atom group selected from O, S, SO, SO2 and NH, or lower alkylene or lower alkenylene in which the hetero atom group may intervene; R2 is optionally substituted aryl; R3 is hydrogen, a halogen, hydroxy, optionally substituted lower alkyl etc; and R4 and Z2 part taken together forms a ring, to form a polycyclic compound, including e.g., a tricyclic or tetracyclic compound.
    Type: Application
    Filed: January 18, 2012
    Publication date: May 10, 2012
    Inventors: Brian Alvin Johns, Takashi Kawasuji, Teruhiko Taishi, Yoshiyuki Taoda
  • Patent number: 8129385
    Abstract: The present invention is directed to a class of substituted 5-hydroxy-3,4,6,9,9a,10-hexahydro-2H-1-oxa-4a,8a-diaza-anthracene-6,10-diones useful as anti-HIV agents. The compounds have the formula: Z?O; R20, R21, R22, R23, R24 and R25 independently are hydrogen, C1-C8 alkyl, (C6-C14)aryl-(C1-C8)alkyl, C6-C14 aryl, or alkoxy; the stereochemistry of an asymmetric carbon represented by * shows R- or S-configuration, or a mixture thereof; RX is hydrogen; R14 is hydrogen or optionally substituted lower alkyl; R3 is hydrogen; R1 is hydrogen or lower alkyl; R is halogen; and m is 1, 2 or 3; or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: March 6, 2012
    Assignees: Shionogi & Co., Ltd., GlaxoSmithKline LLC
    Inventors: Brian Alvin Johns, Takashi Kawasuji, Teruhiko Taishi, Yoshiyuki Taoda
  • Patent number: 7919623
    Abstract: A compound having HIV Integrase Inhibitory activity of the formula: (wherein: R1 is optionally substituted aralkyl; R2 and R3 are each independently hydrogen, optionally substituted alkyl, optionally substituted amino, optionally substituted alkenyl or optionally substituted alkoxy (provided that each substituent for “optionally substituted” is a noncyclic group); R4 is hydrogen, optionally substituted carboxy, optionally substituted formylamino, optionally substituted carbamoyl, optionally substituted amino (provided that a substituent on amino in “optionally substituted formylamino”, “optionally substituted carbamoyl” and “optionally substituted amino” may form an optionally-substituted N-atom containing heterocyclic ring together with an adjacent N atom), optionally substituted alkyl, optionally substituted alkenyl, optionally substituted aryl, or optionally substituted heteroaryl) or a salt thereof.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: April 5, 2011
    Assignee: Shionogi & Co., Ltd.
    Inventors: Teruhiko Taishi, Yukio Tada
  • Publication number: 20090318421
    Abstract: The present invention is to provide a novel compound (I) shown below, having the anti-virus activity, particularly the HIV integrase inhibitory activity, and a drug containing the same, particularly an anti-HIV drug, as well as a process and an intermediate thereof. (wherein Z1 is NR4; R1 is hydrogen or lower alkyl; X is a single bond, a hetero atom group selected from O, S, SO, SO2 and NH, or lower alkylene or lower alkenylene in which the hetero atom group may intervene; R2 is optionally substituted aryl; R3 is hydrogen, a halogen, hydroxy, optionally substituted lower alkyl etc; and R4 and Z2 part taken together forms a ring, to form a polycyclic compound, including e.g., a tricyclic or tetracyclic compound.
    Type: Application
    Filed: April 28, 2006
    Publication date: December 24, 2009
    Inventors: Brian Alvin Johns, Takashi Kawasuji, Teruhiko Taishi, Yoshiyuki Taoda
  • Publication number: 20090227621
    Abstract: [Problems to be Solved] To provide a novel compound having antiviral activity, especially inhibitory activity against HIV integrase, a pharmaceutical composition, especially anti-HIV drug, containing the same.
    Type: Application
    Filed: February 2, 2005
    Publication date: September 10, 2009
    Inventors: Teruhiko Taishi, Yukio Tada
  • Publication number: 20090143356
    Abstract: Is to provide a novel compound having an anti-viral activity, particularly a HIV integrase inhibitory activity, and a pharmaceutical composition, particularly an anti-HIV agent. (wherein R1 is hydrogen or lower alkyl; X is lower alkylene etc.; R2 is optionally substituted aryl; R3 is hydrogen, halogen, hydroxy, optionally substituted lower alkyl etc.; R4 is hydrogen, optionally substituted lower alkyl, optionally substituted cycloalkyl, optionally substituted cycloalkyl lower alkyl, optionally substituted aryl, optionally substituted aryl lower alkyl, optionally substituted heterocyclic group, optionally substituted heterocyclic lower alkyl etc.; A broken line indicates the presence or absence of a bond; B1 and B2 are such that any one of them is CR20R21, and the other is NR22 and, in this case, there is no broken line.
    Type: Application
    Filed: October 26, 2006
    Publication date: June 4, 2009
    Inventors: Hiroshi Yoshida, Takashi Kawasuji, Teruhiko Taishi, Yoshiyuki Taoda
  • Publication number: 20090118233
    Abstract: A heterocyclic compound of the formula (I): wherein B1 is —C(R2)? or —N?; R1? is H, etc.; one of R1 and R2 is -Z1-Z2-Z3-R5 wherein Z1 and Z3 are independently single bond, optionally substituted alkylene, etc.; Z2 is single bond, optionally substituted alkylene, etc.; R5 is optionally substituted aryl, optionally substituted heteroaryl, etc., and the other of R1 and R2 is H; -A1- is —C(—Y)?C(—RA)—C(—R3)?C(—R4)—, etc. wherein Y is OH, etc.; RA is —COR7 wherein R7 is OH, etc.; one of R3 and R4 is carboxy, etc., and the other of R1 and R2 is H, etc, a prodrug thereof, a pharmaceutically acceptable salt thereof, and a solvate thereof, having an antiviral activity, more particularly, an inhibitory activity against HIV integrase, and a pharmaceutical composition containing the same, especially an anti-HIV drug.
    Type: Application
    Filed: February 26, 2008
    Publication date: May 7, 2009
    Inventors: Hitoshi Murai, Takeshi Endo, Noriyuki Kurose, Teruhiko Taishi, Hiroshi Yoshida
  • Patent number: 7358249
    Abstract: A heterocyclic compound of the formula (I): wherein B1 is —C(R2)? or —N?; R1? is H, etc.; one of R1 and R2 is -Z1-Z2-Z3-R5 wherein Z1 and Z3 are independently single bond, optionally substituted alkylene, etc.; Z2 is single bond, optionally substituted alkylene, etc.; R5 is optionally substituted aryl, optionally substituted heteroaryl, etc., and the other of R1 and R2 is H; -A1- is —C(—Y)?C(—RA)—C(—R3)?C(—R4)—, etc. wherein Y is OH, etc.; RA is —COR7 wherein R7 is OH, etc.; one of R3 and R4 is carboxy, etc., and the other of R1 and R2 is H, etc, a prodrug thereof, a pharmaceutically acceptable salt thereof, and a solvate thereof, having an antiviral activity, more particularly, an inhibitory activity against HIV integrase, and a pharmaceutical composition containing the same, especially an anti-HIV drug.
    Type: Grant
    Filed: August 11, 2003
    Date of Patent: April 15, 2008
    Assignee: Shionogi & Co., Ltd.
    Inventors: Hitoshi Murai, Takeshi Endo, Noriyuki Kurose, Teruhiko Taishi, Hiroshi Yoshida
  • Publication number: 20060247212
    Abstract: A heterocyclic compound of the formula (I): wherein B1 is —C(R2)? or —N?; R1? is H, etc.; one of R1 and R2 is -Z1-Z2-Z3-R5 wherein Z1 and Z3 are independently single bond, optionally substituted alkylene, etc.; Z2 is single bond, optionally substituted alkylene, etc.; R1 is optionally substituted aryl, optionally substituted heteroaryl, etc., and the other of R1 and R2 is H; -A1- is —C(—Y)?C(—RA)—C(—R3)?C(—R4)—, etc. wherein Y is OH, etc.; RA is —COR7 wherein R7 is OH, etc.; one of R3 and R4 is carboxy, etc., and the other of R1 and R2 is H, etc, a prodrug thereof, a pharmaceutically acceptable salt thereof, and a solvate thereof, having an antiviral activity, more particularly, an inhibitory activity against HIV integrase, and a pharmaceutical composition containing the same, especially an anti-HIV drug.
    Type: Application
    Filed: June 30, 2006
    Publication date: November 2, 2006
    Inventors: Hitoshi Murai, Takeshi Endo, Noriyuki Kurose, Teruhiko Taishi, Hiroshi Yoshida
  • Publication number: 20060128669
    Abstract: A heterocyclic compound of the formula (I): wherein B1 is —C(R2)? or —N?; R1? is H, etc.; one of R1 and R2 is -Z1-Z2-Z3-R5 wherein Z1 and Z3 are independently single bond, optionally substituted alkylene, etc.; Z2 is single bond, optionally substituted alkylene, etc.; R5 is optionally substituted aryl, optionally substituted heteroaryl, etc., and the other of R1 and R2 is H; -A1- is —C(—Y)?C(—RA)—C(—R3)?C(—R4)—, etc. wherein Y is OH, etc.; RA is —COR7 wherein R7 is OH, etc.; one of R3 and R4 is carboxy, etc., and the other of R1 and R2 is H, etc, a prodrug thereof, a pharmaceutically acceptable salt thereof, and a solvate thereof, having an antiviral activity, more particularly, an inhibitory activity against HIV integrase, and a pharmaceutical composition containing the same, especially an anti-HIV drug.
    Type: Application
    Filed: August 11, 2003
    Publication date: June 15, 2006
    Applicant: SHIONOGI & CO., LTD.
    Inventors: Hitoshi Murai, Takeshi Endo, Noriyuki Kurose, Teruhiko Taishi, Hiroshi Yoshida