Patents by Inventor Atsuo Baba

Atsuo Baba 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: 20110009421
    Abstract: An object of the present invention is to provide an agent for preventing or treating schizophrenia or the like, wherein the compound of the present invention has GPRS2 agonist activity.
    Type: Application
    Filed: February 27, 2009
    Publication date: January 13, 2011
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Masaki Setoh, Toshitake Kobayashi, Toshio Tanaka, Atsuo Baba
  • Publication number: 20090156646
    Abstract: The present invention provides a compound which has metastin receptor antagonist activity and is useful for preventing and treating hormone-dependent cancer, benign prostatomegaly, endometriosis, precocious puberty, uterine myoma or the like. More specifically, the present invention provides a compound, represented by the formula: or a salt thereof, a prodrug thereof, and a pharmaceutical agent containing the same; wherein Ring A represents a 5- to 8-membered homocyclic or heterocyclic group optionally having a substituent other than formula —X-R1 wherein X represents a bond or a spacer, and R1 represents optionally substituted amino or an optionally substituted nitrogen-containing heterocyclic group; Ring B represents an optionally substituted benzene ring; R2 represents an optionally substituted homocyclic or heterocyclic group; and R3 and R4 independently represent a hydrogen atom, cyano, acyl or an optionally substituted hydrocarbon group.
    Type: Application
    Filed: August 10, 2006
    Publication date: June 18, 2009
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Satoshi Sasaki, Atsuo Baba
  • Publication number: 20080146602
    Abstract: A compound represented by the formula (I) wherein R is a hydrogen atom or a C1-4 alkyl group, and X is CH2, O or S, or a salt thereof. The present invention provides a novel thienopyridine derivative having an anti-inflammatory effect, a bone resorption suppressing effect, an immune cytokine production suppressing effect and the like, and useful as a pharmaceutical agent such as an agent for the prophylaxis or treatment of arthritis such as rheumatoid arthritis and the like, and the like, and the like.
    Type: Application
    Filed: May 13, 2005
    Publication date: June 19, 2008
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Atsuo Baba, Tsuneo Yasuma, Hiroyuki Tawada, Makoto Yamashita
  • Patent number: 7067527
    Abstract: The present invention provides thienopyridine derivatives, which are useful as anti-inflammatory drugs, particularly as remedies for arthritis; processes for producing them, and pharmaceutical compositions containing them. The thienopyridine derivatives are represented by the formula (I): wherein G is a halogen atom, hydroxyl group, an optionally substituted amino group, etc.; alk is an optionally substituted lower alkylene group; X is O, S, —(CH2)q—, etc.; R is an optionally substituted amino group, etc.; ring B is an optionally substituted Y-containing 5- to 8-membered ring whose ring constituent atoms contain no nitrogen atom; Y is O, S, a group of (wherein Ra, Rb and Rc are the same or different and, each is H, a halogen atom, an optionally substituted hydrocarbon group, etc.), etc.; and ring A may be substituted.
    Type: Grant
    Filed: September 3, 2003
    Date of Patent: June 27, 2006
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Tsuneo Yasuma, Atsuo Baba, Haruhiko Makino, Isao Aoki, Toshiaki Nagata
  • Publication number: 20040054183
    Abstract: The present invention provides thienopyridine derivatives, which are useful as anti-inflammatory drugs, particularly as remedies for arthritis; processes for producing them, and pharmaceutical compositions containing them.
    Type: Application
    Filed: September 3, 2003
    Publication date: March 18, 2004
    Inventors: Tsuneo Yasuma, Atsuo Baba, Haruhiko Makino, Isao Aoki, Toshiaki Nagata
  • Patent number: 6653476
    Abstract: The present invention provides thienopyridine derivatives, which are useful as anti-inflammatory drugs, particularly as remedies for arthritis; processes for producing them, and pharmaceutical compositions containing them. The thienopyridine derivatives are represented by the formula (I): wherein G is a halogen atom, hydroxyl group, an optionally substituted amino group, etc.; alk is an optionally substituted lower alkylene group; X is O, S, —(CH2)q—, etc.; R is an optionally substituted amino group, etc.; ring B is an optionally substituted Y-containing 5- to 8-membered ring whose ring constituent atoms contain no nitrogen atom; Y is O, S, a group of (wherein Ra, Rb and Rc are the same or different and, each is H, a halogen atom, an optionally substituted hydrocarbon group, etc.), etc.; and ring A may be substituted.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: November 25, 2003
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Tsuneo Yasuma, Atsuo Baba, Haruhiko Makino, Isao Aoki, Toshiaki Nagata
  • Publication number: 20030130517
    Abstract: The present invention provides thienopyridine derivatives, which are useful as anti-inflammatory drugs, particularly as remedies for arthritis; processes for producing them, and pharmaceutical compositions containing them.
    Type: Application
    Filed: August 22, 2002
    Publication date: July 10, 2003
    Inventors: Tsuneo Yasuma, Atsuo Baba, Haruhiko Makino, Isao Aoki, Toshiaki Nagata
  • Patent number: 6403606
    Abstract: There is disclosed a compound of the formula (A): wherein W is C—G or C—G′ (G is optionally esterified carboxyl; and G′ is halogen); X is oxygen, optionally oxidized sulfur or —(CH2)q—, (q is 0 to 5); R is optionally substituted amino or heterocyclic group; the ring B is optionally substituted nitrogen-containing 5- to 7-membered ring; L is hydrogen, optionally substituted hydrocarbon residue, optionally substituted acyl, optionally substituted carbamoyl, optionally substituted thiocarbamoyl or optionally substituted sulfonyl provided that, when W is C—G, L is hydrogen, optionally substituted acyl, optionally substituted carbamoyl, optionally substituted alkoxycarbonyl, optionally substituted thiocarbamoyl or optionally substituted sulfonyl; n is 0 or 1; the ring A may have a substituent. A process for producing the compound (A) and a pharmaceutical composition containing the compound (A) are also disclosed.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: June 11, 2002
    Assignee: Takeda Chemical Industries Ltd.
    Inventors: Takashi Sohda, Haruhiko Makino, Atsuo Baba
  • Patent number: 6214838
    Abstract: A compound of the formula (I): wherein R is hydrogen or C2-6 alkanoyl; X is halogen; and ring A is benzene ring which is optionally substituted by 1 to 4 substituents selected from {circle around (1)} halogen, {circle around (2)} hydroxy, {circle around (3)} C1-6 alkoxy optionally substituted by halogen or phenyl, {circle around (4)} C1-6 alkylthio optionally substituted by halogen or phenyl, {circle around (5)} C1-6 alkyl optionally substituted by halogen, {circle around (6)} C2-6 alkanoylamino or {circle around (7)} carboxy optionally esterified by C1-6 alkyl, or a salt thereof; which can be used for preventing or treating inflammatory disease, arthritis, chronic rheumatoid arthritis, autoimmune diseases, or rejection after organ transplantation.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: April 10, 2001
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Takashi Sohda, Haruhiko Makino, Atsuo Baba, Taihei Yamane
  • Patent number: 6046189
    Abstract: There is disclosed a compound of the formula (A): ##STR1## wherein W is C-G or C-G' (G is optionally esterified carboxyl; and G' is halogen); X is oxygen, optionally oxidized sulfur or --(CH.sub.2).sub.q -- (q is 0 to 5); R is optionally substituted amino or heterocyclic group; the ring B is optionally substituted nitrogen-containing 5- to 7-membered ring; L is hydrogen, optionally substituted hydrocarbon residue, optionally substituted acyl, optionally substituted carbamoyl, optionally substituted thiocarbamoyl or optionally substituted sulfonyl provided that, when W is C-G, L is hydrogen, optionally substituted acyl, optionally substituted carbamoyl, optionally substituted alkoxycarbonyl, optionally substituted thiocarbamoyl or optionally substituted sulfonyl; n is 0 or 1; the ring A may have a substituent. A process for producing the compound (A) and a pharmaceutical composition containing the compound (A) are also disclosed.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: April 4, 2000
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Takashi Sohda, Haruhiko Makino, Atsuo Baba
  • Patent number: 5948782
    Abstract: There is disclosed an anti-inflammatory agent comprising a compound of the formula (I): ##STR1## The quinoline compounds included in the compound (I) are novel and there is also disclosed processes for producing them.
    Type: Grant
    Filed: April 21, 1993
    Date of Patent: September 7, 1999
    Assignee: Takeda Chemical
    Inventors: Takashi Sohda, Haruhiko Makino, Atsuo Baba
  • Patent number: 5932592
    Abstract: A compound represented by the general formula: ##STR1## wherein Y represents a nitrogen atom or C-G (G represents a carboxyl group which may be esterified); ring R is a nitrogen-containing unsaturated heterocyclic group which may be substituted for; each of rings A and B may have a substituent; n represents an integer from 1 to 4; k represents the integer 0 or 1, or a salt thereof, which serves well as an anti-inflammatory agent, particularly a therapeutic agent for arthritis.
    Type: Grant
    Filed: October 21, 1997
    Date of Patent: August 3, 1999
    Assignee: Takeda Chemical Ind., Ltd.
    Inventors: Takashi Sohda, Haruhiko Makino, Atsuo Baba
  • Patent number: 5852039
    Abstract: The present invention provides a pharmaceutical composition for inhibiting bone resorption or for preventing or treating osteoporosis which comprises a quinoline or quinazoine derivative as an active ingredient.
    Type: Grant
    Filed: January 15, 1997
    Date of Patent: December 22, 1998
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Takashi Sohda, Shigehisa Taketomi, Atsuo Baba
  • Patent number: 5770602
    Abstract: A compound represented by the general formula: ##STR1## wherein Y represents a nitrogen atom or C--G (G represents a carboxyl group which may be esterified); ring R is a nitrogen-containing unsaturated heterocyclic group which may be substituted for; each of rings A and B may have a substituent; n represents an integer from 1 to 4; k represents the integer 0 or 1, or a salt thereof, which serves well as an anti-inflammatory agent, particularly a therapeutic agent for arthritis.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: June 23, 1998
    Assignee: Takeda Chemical Industries
    Inventors: Takashi Sohda, Haruhiko Makino, Atsuo Baba
  • Patent number: 5747486
    Abstract: This invention provides an anti-inflammatory agent, particularly an agent for treating arthritis, and a bone resorption inhibiting agent, containing a thienopyridine or thienopyrimidine derivative or a salt thereof. This invention also provides a novel thienopyridine or thienopyrimidine derivative having anti-inflammatory activity and bone resorption inhibiting activity.
    Type: Grant
    Filed: December 27, 1995
    Date of Patent: May 5, 1998
    Assignee: Takeda Chemical Industries
    Inventors: Takashi Sohda, Haruhiko Makino, Atsuo Baba
  • Patent number: 5719157
    Abstract: The present invention provides a pharmaceutical composition for inhibiting bone resorption or for preventing or treating osteoporosis which comprises a quinoline or quinazoine derivative as an active ingredient.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: February 17, 1998
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Takashi Sohda, Shigehisa Taketomi, Atsuo Baba
  • Patent number: 5650410
    Abstract: This invention provides an anti-inflammatory agent, particularly an agent for treating arthritis, containing a quinoline or quinazoline derivative or a salt thereof ##STR1## wherein Y is a nitrogen atom or C--G in which G is an optionally esterified carboxyl group;R.sup.1 and R.sup.2 are each independently a hydrogen atom, optionally substituted hydrocarbon group or optionally substituted heterocyclic group, or R.sup.1 and R.sup.2 are linked together to form a saturated ring;each of the ring A and ring B may optionally be substituted;n is an integer of 1 to 4; andk is 0 or 1.This invention also provides a novel quinoline or quinazoline derivative having anti-inflammatory activity.
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: July 22, 1997
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Takashi Sohda, Haruhiko Makino, Atsuo Baba
  • Patent number: 5641788
    Abstract: The present invention provides a novel quinoline derivative useful as an anti-inflammatory agent, particularly an agent for treating arthritis, or a salt thereof. The present invention also provides a composition, particularly an anti-inflammatory composition for pharmaceutical use, comprising the novel quinoline compound of formula (I): ##STR1## wherein G is an acyl group, optionally protected hydroxyalkyl group, amidated carboxyl group or halogen atom;X is an oxygen atom, optionally oxidized sulfur atom or --(CH.sub.2).sub.q -- in which q is an integer of 0 to 5;R is an optionally substituted amino group or optionally substituted heterocyclic group;each of the ring A and ring B may optionally be substituted; andk is 0 or 1.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: June 24, 1997
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Takashi Sohda, Haruhiko Makino, Atsuo Baba
  • Patent number: 5436247
    Abstract: A compound represented by the general formula: ##STR1## wherein Y represents a nitrogen atom or C--G (G represents a carboxyl group which may be esterified); ring R is a nitrogen-containing unsaturated heterocyclic group which may be substituted or unsubstituted; each of rings A and B may have a substituent; n represents an integer from 1 to 4; k represents the integer 0 or 1, or a salt thereof, which serves well as an anti-inflammatory agent, particularly a therapeutic agent for arthritis.
    Type: Grant
    Filed: January 26, 1994
    Date of Patent: July 25, 1995
    Assignee: Takeda Chemical Industries
    Inventors: Takashi Sohda, Haruhiko Makino, Atsuo Baba