Patents by Inventor He Zhao

He Zhao 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: 7482350
    Abstract: 4,5-disubstituted-2-arylpyrimidines of Formula I and Formula II are provided: wherein R1, R2, R3, R8, R9, A and Ar are defined herein. Such compounds are ligands of C5a receptors. Preferred compounds of Formula I and II bind to C5a receptors with high affinity and exhibit neutral antagonist or inverse agonist activity at C5a receptors. The present invention also relates to pharmaceutical compositions comprising such compounds, and to the use of such compounds in treating a variety of inflammatory, cardiovascular, and immune system disorders. In addition, the present invention provides labeled 4,5-disubstituted-2-arylpyrimidines, which are useful as probes for the localization of C5a receptors.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: January 27, 2009
    Assignee: Neurogen Corporation
    Inventors: George D. Maynard, Manuka Ghosh, Jun Yuan, Kevin S. Currie, Scott Mitchell, Qin Guo, He Zhao
  • Patent number: 7291621
    Abstract: Substituted biaryl amides of Formula I are provided. Such compounds are ligands that may be used to modulate C5a receptor activity in vivo or in vitro, and are particularly useful in the treatment of conditions associated with pathological C5a receptor activation in humans, domesticated companion animals and livestock animals.
    Type: Grant
    Filed: January 3, 2006
    Date of Patent: November 6, 2007
    Assignee: Neurogen Corporation
    Inventors: Yang Gao, Andrew Thrukauf, He Zhao
  • Patent number: 7271270
    Abstract: This invention relates to low molecular weight, non-peptidic, non-peptidomimetic, organic molecules that act as modulators of mammalian complement C5a receptors, preferably ones that act as high affinity C5a receptor ligands and also to such ligands that act as antagonists or inverse agonists of complement C5a receptors. Preferred compounds of the invention possess some or all of the following properties in that they are: 1) multi-aryl in structure, 2) heteroaryl in structure, 3) a pharmaceutically acceptable oral dose can provide a detectable in vitro effect, 4) comprise fewer than four or preferably no amide bonds, and 5) capable of inhibiting leukocyte chemotaxis at nanomolar or sub-nanomolar concentrations. This invention also relates to pharmaceutical compositions comprising such compounds and the use of such compounds in treating a variety of inflammatory and immune system disorders. Additionally, this invention relates to the use such compounds as probes for the localization of C5a receptors.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: September 18, 2007
    Assignee: Neurogen Corporation
    Inventors: Andrew Thurkauf, Xiao-shu He, He Zhao
  • Publication number: 20070212297
    Abstract: Amino methyl imidazoles of Formula I are provided: wherein R, R1, R2, R3, R4, R5, and R6 are defined herein. Such compounds are ligands of C5a receptors. Preferred compounds of Formula I bind to C5a receptors with high affinity and exhibit neutral antagonist or inverse agonist activity at C5a receptors. This invention also relates to pharmaceutical compositions comprising such compounds. It further relates to the use of such compounds in treating a variety of inflammatory, cardiovascular, and immune system disorders. Additionally, this invention provides labeled amino methyl imidazoles compounds, which are useful as probes for the localization of C5a receptors.
    Type: Application
    Filed: December 22, 2006
    Publication date: September 13, 2007
    Inventors: Andrew Thurkauf, He Zhao, Suoming Zhang, Yang Gao
  • Publication number: 20070208048
    Abstract: The invention provides Aryl substituted imidazoles, pyrazoles, pyridizines and related compounds of the Formula where the ring system represented by is a 5 membered heteroaryl ring system, in which x is 0, A is chosen from carbon and heteroatoms nitrogen, oxygen, and sulfur, and E and G are independently carbon or nitrogen provided that the 5 membered heteroaryl ring system does not contain more than 3 heteroatoms or more than 1 oxygen or sulfur atom, or a 6 membered heteroaryl ring system, in which x is 1, A, B, E, and G are independently chosen from carbon and nitrogen, provided that the 6 membered heteroaryl ring system does not contain more than 3 nitrogen atoms. The remaining variables, Ar1, Ar2, R, R1, R2, R3, R4, R5, R6, y and z are defined herein Such compounds are ligands of C5a receptors. Preferred compounds of the invention act bind to C5a receptors with high affinity and exhibit neutral antagonist or inverse agonist activity at C5a receptors.
    Type: Application
    Filed: March 1, 2007
    Publication date: September 6, 2007
    Inventors: George Luke, George Maynard, Scott Mitchell, Andrew Thurkauf, Linghong Xie, LuYan Zhang, Suoming Zhang, He Zhao, Bertrand Chenard, Yang Gao, Bingsong Han, Xiao He
  • Publication number: 20070078135
    Abstract: Compounds of Formula I are provided. In which the variables are as described herein. Such compounds may be used to modulate CB1 activity in vivo or in vitro, and are particularly useful in the treatment of conditions responsive to CB1 modulation in humans, domesticated companion animals and livestock animals, including appetite disorders, obesity and addictive disorders. Pharmaceutical compositions and methods for using them to treat such disorders are provided, as are methods for using such ligands for receptor localization studies and various in vitro assays.
    Type: Application
    Filed: April 18, 2006
    Publication date: April 5, 2007
    Applicant: Neurogen Corporation
    Inventors: Jun Yuan, Qin Guo, He Zhao, Shaojing Hu, Darren Whitehouse, Wallace Pringle, Jianmin Mao, George Maynard, Jack Hammer, David Wustrow, Hongbin Li
  • Patent number: 7186734
    Abstract: The invention provides Aryl substituted imidazoles, pyrazoles, pyridizines and related compounds of the Formula where the variables are defined herein. Such compounds are ligands of C5a receptors. Preferred compounds of the invention act bind to C5a receptors with high affinity and exhibit neutral antagonist or inverse agonist activity at C5a receptos. This invention also relates to pharmaceutical compositions comprising such compounds. It further relates to the use of such compounds in treating a variety of inflammatory and immune system disorders.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: March 6, 2007
    Assignee: Neurogen Corporation
    Inventors: George D. Maynard, Andrew Thurkauf, He Zhao, Bertrand L. Chenard, Yang Gao
  • Publication number: 20070027158
    Abstract: This invention relates to low molecular weight, non-peptidic, non-peptidomimetic, organic molecules that act as modulators of mammalian complement C5a receptors, preferably ones that act as high affinity C5a receptor ligands and also to such ligands that act as antagonists or inverse agonists of complement C5a receptors. Preferred compounds of the invention possess some or all of the following properties in that they are: 1) multi-aryl in structure, 2) heteroaryl in structure, 3) a pharmaceutically acceptable oral dose can provide a detectable in vitro effect, 4) comprise fewer than four or preferably no amide bonds, and 5) capable of inhibiting leukocyte chemotaxis at nanomolar or sub-nanomolar concentrations. This invention also relates to pharmaceutical compositions comprising such compounds and the use of such compounds in treating a variety of inflammatory and immune system disorders. Additionally, this invention relates to the use such compounds as probes for the localization of C5a receptors.
    Type: Application
    Filed: May 24, 2004
    Publication date: February 1, 2007
    Inventors: Andrew Thurkauf, Xiao-shu He, He Zhao
  • Patent number: 7169775
    Abstract: Amino methyl imidazoles of Formula I are provided: wherein R, R1, R2, R3, R4, R5, and R6 are defined herein. Such compounds are ligands of C5a receptors. Preferred compounds of Formula I bind to C5a receptors with high affinity and exhibit neutral antagonist or inverse agonist activity at C5a receptors. This invention also relates to pharmaceutical compositions comprising such compounds. It further relates to the use of such compounds in treating a variety of inflammatory, cardiovascular, and immune system disorders. Additionally, this invention provides labeled amino methyl imidazoles compounds, which are useful as probes for the localization of C5a receptors.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: January 30, 2007
    Assignee: Neurogen Corporation
    Inventors: Andrew Thurkauf, He Zhao, Suoming Zhang, Yang Gao
  • Publication number: 20070007254
    Abstract: An improved fusion welding system having a heating unit and welding device is adapted for increasing the efficiency of welding a plurality of workpieces. The system preferably presents a single-sided process, and includes first and second electrode wheels operable to heat a portion of the workpieces to a minimum temperature, and a translatable laser cooperatively configured to form a continuous weld within the heated portion. The preferred system provides the advantages of laser welding, such as precision, while enabling weld production at lower laser power outputs or faster welding speeds than conventional laser welding systems.
    Type: Application
    Filed: July 8, 2005
    Publication date: January 11, 2007
    Inventors: Pei-Chung Wang, Xihua Zhao, He Zhao
  • Patent number: 7148225
    Abstract: Substituted biaryl amides of Formula I are provided. Such compounds are ligands that may be used to modulate C5a receptor activity in vivo or in vitro, and are particularly useful in the treatment of conditions associated with pathological C5a receptor activation in humans, domesticated companion animals and livestock animals.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: December 12, 2006
    Assignee: Neurogen Corporation
    Inventors: Yang Gao, Alan J. Hutchinson, Wallace C. Pringle, Taeyoung Yoon, He Zhao
  • Publication number: 20060199823
    Abstract: Substituted heteroaryl fused pyridine, pyrazine, and pyrimidine compounds that act as selective modulators of CRF 1 receptors are provided. These compounds are useful in the treatment of a number of CNS and periphereal disorders, particularly stress, anxiety, depression, cardiovascular disorders, and eating disorders. Methods of treatment of such disorders and well as packaged pharmaceutical compositions are also provided. Compounds of the invention are also useful as probes for the localization of CRF receptors and as standards in assays for CRF receptor binding. Methods of using the compounds in receptor localization studies are given.
    Type: Application
    Filed: March 24, 2006
    Publication date: September 7, 2006
    Applicant: Neurogen Corporation
    Inventors: Ping Ge, Raymond Horvath, Lu Zhang, Yasuchika Yamaguchi, Bernd Kaiser, Xuechun Zhang, Suoming Zhang, He Zhao
  • Publication number: 20060178414
    Abstract: Substituted biaryl amides of Formula I are provided. Such compounds are ligands that may be used to modulate C5a receptor activity in vivo or in vitro, and are particularly useful in the treatment of conditions associated with pathological C5a receptor activation in humans, domesticated companion animals and livestock animals. Pharmaceutical compositions and methods for using them to treat such disorders are provided, as are methods for using such ligands for receptor localization studies.
    Type: Application
    Filed: January 3, 2006
    Publication date: August 10, 2006
    Inventors: Yang Gao, Andrew Thurkauf, He Zhao
  • Publication number: 20060154917
    Abstract: (Heterocycloalkyl)methyl azole derivatives of Formula (I) are provided: Formula I wherein A is oxygen, sulfur, or NR; J and K and each L are independently oxygen, sulfur, NH, or CH2; and the remaining variables are defined herein. Such compounds are modulators of C5a receptors, and preferably bind to C5a receptors with high affinity and exhibit neutral antagonist or inverse agonist activity at C5a receptors. Also provided herein are pharmaceutical compositions comprising such compounds, as well as methods for using such compounds in treating a variety of inflammatory and immune system disorders.
    Type: Application
    Filed: June 30, 2004
    Publication date: July 13, 2006
    Applicant: Neurogen Corporation
    Inventors: Suoming Zhang, He Zhao, Yang Gao, Andrew Thurkauf, George Maynard, Bertrand Chenard, Robert Ohliger, John Peterson
  • Publication number: 20050277654
    Abstract: 4,5-disubstituted-2-arylpyrimidines of Formula I and Formula II are provided: wherein R1, R2, R3, R8, R9, A and Ar are defined herein. Such compounds are ligands of C5a receptors. Preferred compounds of Formula I and II bind to C5a receptors with high affinity and exhibit neutral antagonist or inverse agonist activity at C5a receptors. The present invention also relates to pharmaceutical compositions comprising such compounds, and to the use of such compounds in treating a variety of inflammatory, cardiovascular, and immune system disorders. In addition, the present invention provides labeled 4,5-disubstituted-2-arylpyrimidines, which are useful as probes for the localization of C5a receptors.
    Type: Application
    Filed: May 6, 2005
    Publication date: December 15, 2005
    Inventors: George Maynard, Manuka Ghosh, Jun Yuan, Kevin Currie, Scott Mitchell, Qin Guo, He Zhao
  • Patent number: 6916830
    Abstract: Substituted tetrahydroisoquinolines and related compounds are provided. Such compounds are ligands that may be used to modulate C5a receptor activity in vivo or in vitro, and are particularly useful in the treatment of conditions associated with pathological C5a receptor activation in humans, domesticated companion animals and livestock animals.
    Type: Grant
    Filed: April 15, 2004
    Date of Patent: July 12, 2005
    Assignee: Neurogen Corporation
    Inventors: Kyungae Lee, Scott A. Mitchell, Robert Ohliger, LuYan Zhang, He Zhao, Kevin S. Currie
  • Publication number: 20050113379
    Abstract: Substituted heteroaryl fused pyridine, pyrazine, and pyrimidine compounds that act as selective modulators of CRF 1 receptors are provided. These compounds are useful in the treatment of a number of CNS and periphereal disorders, particularly stress, anxiety, depression, cardiovascular disorders, and eating disorders. Methods of treatment of such disorders and well as packaged pharmaceutical compositions are also provided. Compounds of the invention are also useful as probes for the localization of CRF receptors and as standards in assays for CRF receptor binding. Methods of using the compounds in receptor localization studies are given.
    Type: Application
    Filed: September 3, 2004
    Publication date: May 26, 2005
    Inventors: Ping Ge, Raymond Horvath, Lu Yan Zhang, Yasuchika Yamaguchi, Bernd Kaiser, Xuechun Zhang, Suoming Zhang, He Zhao, Stanly John, Neil Moorcroft, Greg Shutske
  • Publication number: 20050096358
    Abstract: Substituted biaryl amides of Formula I are provided. Such compounds are ligands that may be used to modulate C5a receptor activity in vivo or in vitro, and are particularly useful in the treatment of conditions associated with pathological C5a receptor activation in humans, domesticated companion animals and livestock animals. Pharmaceutical compositions and methods for using them to treat such disorders are provided, as are methods for using such ligands for receptor localization studies.
    Type: Application
    Filed: November 19, 2004
    Publication date: May 5, 2005
    Inventors: Yang Gao, Alan Hutchison, Wallace Pringle, Taeyoung Yoon, He Zhao
  • Patent number: 6884815
    Abstract: This invention relates to low molecular weight, non-peptidic, non-peptidomimetic, organic molecules that act as modulators of mammalian complement C5a receptors, preferably ones that act as high affinity C5a receptor ligands and also to such ligands that act as antagonists or inverse agonists of complement C5a receptors. Preferred compounds of the invention possess some or all of the following properties in that they are: 1) multi-aryl in structure, 2) heteroaryl in structure, 3) a pharmaceutically acceptable oral dose can provide a detectable in vitro effect, 4) comprise fewer than four or preferably no amide bonds, and 5) capable of inhibiting leukocyte chemotaxis at nanomolar or sub-nanomolar concentrations. This invention also relates to pharmaceutical compositions comprising such compounds and the use of such compounds in treating a variety of inflammatory and immune system disorders. Additionally, this invention relates to the use such compounds as probes for the localization of C5a receptors.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: April 26, 2005
    Assignee: Neurogen Corporation
    Inventors: Andrew Thurkauf, Xiao-shu He, He Zhao, John Peterson, Xiaoyan Zhang, Robbin Brodbeck, James Krause, George Maynard, Alan Hutchison
  • Patent number: 6858637
    Abstract: Substituted biaryl amides of Formula I are provided. Such compounds are ligands that may be used to modulate C5a receptor activity in vivo or in vitro, and are particularly useful in the treatment of conditions associated with pathological C5a receptor activation in humans, domesticated companion animals and livestock animals. Pharmaceutical compositions and methods for using them to treat such disorders are provided, as are methods for using such ligands for receptor localization studies.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: February 22, 2005
    Assignee: Neurogen Corporation
    Inventors: Yang Gao, Alan J. Hutchison, Wallace C. Pringle, Andrew Thurkauf, Taeyoung Yoon, He Zhao