Patents by Inventor Tomonaga Ozawa

Tomonaga Ozawa 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: 9040693
    Abstract: The present invention provides a compound useful as an agent for the prevention or treatment of a sex hormone-dependent disease or the like. That is, the present invention provides a fused heterocyclic derivative represented by the following general formula (I), a pharmaceutical composition containing the same, a medicinal use thereof and the like. In the formula (I), ring A represents 5-membered cyclic unsaturated hydrocarbon or 5-membered heteroaryl; RA represents halogen, alkyl, alkenyl, alkynyl, carboxy, alkoxy, carbamoyl, alkylcarbamoyl or the like ; ring B represents aryl or heteroaryl; RB represents halogen, alkyl, carboxy, alkoxy, carbamoyl, alkylcarbamoyl or the like; E1 and E2 represent an oxygen atom or the like; U represents a single bond or alkylene; X represents a group represented by Y, —SO2—Y, —O—(alkylene)—Y, —O—Z in which Y represents Z, amino or the like; Z represents cycloalkyl, heterocycloalkyl, aryl, heteroaryl or the like; or the like.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: May 26, 2015
    Assignee: KISSEI PHARMACEUTICAL CO., LTD.
    Inventors: Kohsuke Ohno, Takashi Miyagi, Tomonaga Ozawa, Nobuhiko Fushimi
  • Patent number: 7674938
    Abstract: The present invention provides compounds represented by general formula (I): or pharmaceutical acceptable salts thereof, wherein R1 and R2 are each hydrogen or lower alkyl; R3, R4, R5 and R6 are each hydrogen, halogen, lower alkyl or lower alkoxy; R7 and R8 are each hydrogen, halogen, lower alkyl, halo-lower alkyl, lower alkoxy, cycloalkyl, aryl, heteroaryl, cyano, a hydroxyl group, lower acyl, carboxy or the like; R9 is —C(O)—R10, -A1-C(O)—R10, —O-A2-C(O)—R10 or a tetrazol-5-yl group, which exhibit potent and selective ?3-adrenoceptor stimulating activities. The present invention also provides pharmaceutical compositions containing said compound, and uses thereof.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: March 9, 2010
    Assignee: Kissei Pharmaceutical Co., Ltd.
    Inventors: Junichi Kobayashi, Tetsuya Nakamura, Ritsu Suzuki, Hideyuki Muranaka, Tomonaga Ozawa, Yuichiro Kai, Takehiro Ishikawa, Tatsuhiro Kondo, Tetsuro Tamai, Satoshi Akahane
  • Publication number: 20090325900
    Abstract: The present invention provides a compound useful as an agent for the prevention or treatment of a sex hormone-dependent disease or the like. That is, the present invention provides a fused heterocyclic derivative represented by the following general formula (I), a pharmaceutical composition containing the same, a medicinal use thereof and the like. In the formula (I), ring A represents 5-membered cyclic unsaturated hydrocarbon or 5-membered heteroaryl; RA represents halogen, alkyl, alkenyl, alkynyl, carboxy, alkoxy, carbamoyl, alkylcarbamoyl or the like; ring B represents aryl or heteroaryl; RB represents halogen, alkyl, carboxy, alkoxy, carbamoyl, alkylcarbamoyl or the like; E1 and E2 represent an oxygen atom or the like; U represents a single bond or alkylene; X represents a group represented by Y, —SO2—Y, —O— (alkylene)-Y, —O-Z in which Y represents Z, amino or the like; Z represents cycloalkyl, heterocycloalkyl, aryl, heteroaryl or the like; or the like.
    Type: Application
    Filed: October 17, 2006
    Publication date: December 31, 2009
    Applicant: KISSEI PHARMACEUTICAL CO., LTD.
    Inventors: Kohsuke Ohno, Takashi Miyagi, Tomonaga Ozawa, Nobuhiko Fushimi
  • Publication number: 20080249177
    Abstract: The present invention provides compounds represented by general formula (I): or pharmaceutical acceptable salts thereof, wherein R1 and R2 are each hydrogen or lower alkyl; R3, R4, R5 and R6 are each hydrogen, halogen, lower alkyl or lower alkoxy; R7 and R8 are each hydrogen, halogen, lower alkyl, halo-lower alkyl, lower alkoxy, cycloalkyl, aryl, heteroaryl, cyano, a hydroxyl group, lower acyl, carboxy or the like; R9 is —C(O)—R10, -A1-C(O)—R10, —O-A2-C(O)—R10 or a tetrazol-5-yl group, which exhibit potent and selective ?3-adrenoceptor stimulating activities. The present invention also provides pharmaceutical compositions containing said compound, and uses thereof.
    Type: Application
    Filed: November 7, 2007
    Publication date: October 9, 2008
    Inventors: Junichi KOBAYASHI, Tetsuya Nakamura, Ritsu Suzuki, Hideyuki Muranaka, Tomonaga Ozawa, Yuichiro Kai, Takehiro Ishikawa, Tatsuhiro Kondo, Tetsuro Tamai, Satoshi Akahane
  • Patent number: 7423185
    Abstract: The present invention provides compounds represented by general formula (I): or pharmaceutical acceptable salts thereof, wherein R1 and R2 are each hydrogen or lower alkyl; R3, R4, R5 and R6 are each hydrogen, halogen, lower alkyl or lower alkoxy; R7 and R8 are each hydrogen, halogen, lower alkyl, halo-lower alkyl, lower alkoxy, cycloalkyl, aryl, heteroaryl, cyano, a hydroxyl group, lower acyl, carboxy or the like; R9 is —C(O)—R10, -A1-C(O)—R10, —O-A2-C(O)—R10 or a tetrazol-5-yl group, which exhibit potent and selective ?3-adrenoceptor stimulating activities. The present invention also provides pharmaceutical compositions containing said compound, and uses thereof.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: September 9, 2008
    Assignee: Kissei Pharmaceutical Co., Ltd.
    Inventors: Junichi Kobayashi, Tetsuya Nakamura, Ritsu Suzuki, Hideyuki Muranaka, Tomonaga Ozawa, Yuichiro Kai, Takehiro Ishikawa, Tatsuhiro Kondo, Tetsuro Tamai, Satoshi Akahane
  • Patent number: 7230031
    Abstract: The present invention provides a compound represented by general formula (I): or pharmaceutically acceptable salts thereof, wherein W is O, S(O)m, CH2 and the like; R1 is halogen, lower alkyl, halo-lower alkyl, CN and the like; R3 is hydrogen and the like; R4 is hydrogen, halogen, alkyl, halo-lower alkyl, substituted alkyl, aryl, aralkyl, alkoxy, substituted alkoxy, alkanoyl, aroyl, —CONR7(R8), —S(O)mR9, —SO2NR7(R8) and the like; R5 is hydrogen, halogen, alkyl, substituted alkyl and the like; A is —N(R6)CO—A1—COR10 and the like; pharmaceutical compositions containing them and their uses, which have a high affinity to human thyroid hormone receptors, in particular human thyroid hormone receptor ?.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: June 12, 2007
    Assignee: Kissei Pharmaceutical Co., Ltd.
    Inventors: Hiroaki Shiohara, Tetsuya Nakamura, Norihiko Kikuchi, Tomonaga Ozawa, Makio Kitazawa
  • Publication number: 20060128807
    Abstract: The present invention provides compounds represented by general formula (I): or pharmaceutical acceptable salts thereof, wherein R1 and R2 are each hydrogen or lower alkyl; R3, R4, R5 and R6 are each hydrogen, halogen, lower alkyl or lower alkoxy; R7 and R8 are each hydrogen, halogen, lower alkyl, halo-lower alkyl, lower alkoxy, cycloalkyl, aryl, heteroaryl, cyano, a hydroxyl group, lower acyl, carboxy or the like; R9 is —C(O)—R10, -A1-C(O)—R10, —O-A2-C(O)—R10 or a tetrazol-5-yl group, which exhibit potent and selective ?3-adrenoceptor stimulating activities. The present invention also provides pharmaceutical compositions containing said compound, and uses thereof.
    Type: Application
    Filed: January 30, 2004
    Publication date: June 15, 2006
    Inventors: Junichi Kobayashi, Tetsuya Nakamura, Ritsu Suzuki, Hideyuki Muranaka, Tomonaga Ozawa, Yuichiro Kai, Takehiro Ishikawa, Tatsuhiro Kondo, Tetsuro Tamai, Satoshi Akahane
  • Publication number: 20050085541
    Abstract: The present invention provides a compound represented by general formula (I): or pharmaceutically acceptable salts thereof, wherein W is O, S(O)m, CH2 and the like; R1 is halogen, lower alkyl, halo-lower alkyl, CN and the like; R3 is hydrogen and the like; R4 is hydrogen, halogen, alkyl, halo-lower alkyl, substituted alkyl, aryl, aralkyl, alkoxy, substituted alkoxy, alkanoyl, aroyl, —CONR7(R8), —S(O)mR9, —SO2NR7(R8) and the like; R5 is hydrogen, halogen, alkyl, substituted alkyl and the like; A is —N(R6)CO-A1-COR10 and the like; pharmaceutical compositions containing them and their uses, which have a high affinity to human thyroid hormone receptors, in particular human thyroid hormone receptor ?.
    Type: Application
    Filed: January 28, 2003
    Publication date: April 21, 2005
    Inventors: Hiroaki Shiohara, Tetsuya Nakamura, Norihiko Kikuchi, Tomonaga Ozawa, Makio Kitazawa