Patents by Inventor Lehua Chang

Lehua Chang 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).

  • Substituted pyrazolo/imidazolo bicyclic compounds as PDE2 inhibitors
    Patent number: 10647727
    Abstract: The present invention is directed to pyrimidine carboxamide compounds of formula I which are useful as therapeutic agents for the treatment of central nervous system disorders associated with phosphodiesterase 2 (PDE2). The present invention also relates to the use of such compounds for treating neurological and psychiatric disorders, such as schizophrenia, psychosis, Parkinson's disease, Parkinson's disease dementia (PDD), or Huntington's disease, and those associated with striatal hypofunction or basal ganglia dysfunction.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: May 12, 2020
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Gregori J. Morriello, Lehua Chang, Ashley Forster, Richard Berger, Kausik K. Nanda, William D. Shipe
  • Substituted triazolo bicyclic compounds as PDE2 inhibitors
    Patent number: 10357481
    Abstract: The present invention is directed to substituted triazolo bicyclic compounds of formula I which are useful as therapeutic agents for the treatment of central nervous system disorders associated with phosphodiesterase 2 (PDE2). The present invention also relates to the use of such compounds for treating neurological and psychiatric disorders, such as schizophrenia, psychosis, Parkinson's disease, Parkinson's disease dementia (PDD), or Huntington's disease, and those associated with striatal hypofunction or basal ganglia dysfunction.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: July 23, 2019
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Gregori J. Morriello, Lehua Chang, Ashley Forster, Yili Chen, Michael P. Dwyer, Zack Zhiqiang Guo, Ming Wang, Shimin Xu, Yingjian Bo, Jianmin Fu
  • Piperazine derivatives as HIV protease inhibitors
    Patent number: 10138255
    Abstract: The present invention is directed to compounds of Formula I pharmaceutical compositions comprising the same, and their use in the inhibition of HIV protease, the inhibition of HIV replication, the prophylaxis of infection by HIV, the treatment of infection by HIV, and the prophylaxis, treatment, and delay in the onset or progression of AIDS.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: November 27, 2018
    Assignees: Merck Sharp & Dohme Corp., MSD R&D (China) Co., Ltd.
    Inventors: Peter D. Williams, John A. McCauley, Christopher J. Bungard, David Jonathan Bennett, Sherman T. Waddell, Gregori J. Morriello, Lehua Chang, Michael P. Dwyer, M. Katharine Holloway, Alejandro Crespo, Xin-Jie Chu, Catherine Wiscount, H. Marie Loughran, Jesse J. Manikowski, Jurgen Schulz, Kartik M. Keertikar, Bin Hu, Bin Zhong, Tao Ji
  • SUBSTITUTED TRIAZOLO BICYCLIC COMPOUNDS AS PDE2 INHIBITORS
    Publication number: 20180169072
    Abstract: The present invention is directed to substituted triazolo bicyclic compounds of formula I which are useful as therapeutic agents for the treatment of central nervous system disorders associated with phosphodiesterase 2 (PDE2). The present invention also relates to the use of such compounds for treating neurological and psychiatric disorders, such as schizophrenia, psychosis, Parkinson's disease, Parkinson's disease dementia (PDD), or Huntington's disease, and those associated with striatal hypofunction or basal ganglia dysfunction.
    Type: Application
    Filed: June 27, 2016
    Publication date: June 21, 2018
    Inventors: Gregori J. MORRIELLO, Lehua CHANG, Ashley FORSTER, Yili CHEN, Michael P. DWYER, Zack Zhiqiang GUO, Ming WANG, Shimin XU, Yingjian BO, Jianmin FU
  • SUBSTITUTED PYRAZOLO/IMIDAZOLO BICYCLIC COMPOUNDS AS PDE2 INHIBITORS
    Publication number: 20180162874
    Abstract: The present invention is directed to pyrimidine carboxamide compounds of formula I which are useful as therapeutic agents for the treatment of central nervous system disorders associated with phosphodiesterase 2 (PDE2). The present invention also relates to the use of such compounds for treating neurological and psychiatric disorders, such as schizophrenia, psychosis, Parkinson's disease, Parkinson's disease dementia (PDD), or Huntington's disease, and those associated with striatal hypofunction or basal ganglia dysfunction.
    Type: Application
    Filed: June 20, 2016
    Publication date: June 14, 2018
    Applicant: Merck Sharp & Dohme Corp.
    Inventors: Gregori J. Morriello, Michael P. Dwyer, Lehua Chang, Yili Chen, Ming Wang, Ashley Forster, Richard Berger, Kausik k Nanda, Jaime L Bunda, William D Shipe
  • Piperazine derivatives as HIV protease inhibitors
    Patent number: 9840478
    Abstract: The present invention is directed to piperazine derivatives, pharmaceutical compositions comprising the same, and their use in the inhibition of HIV protease, the inhibition of HIV replication, the prophylaxis of infection by HIV, the treatment of infection by HIV, and the prophylaxis, treatment, and delay in the onset or progression of AIDS.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: December 12, 2017
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Peter D. Williams, John A. McCauley, David Jonathan Bennett, Christopher J. Bungard, Lehua Chang, Michael P. Dwyer, M. Katharine Holloway, Kartik M. Keertikar, H. Marie Loughran, Jessie J. Manikowski, Gregori J. Morriello, Dong-Ming Shen, Edward C. Sherer, Jurgen Schultz, Sherman T. Waddell, Catherine M. Wiscount, Nicolas Zorn, Xin-Jie Chu, Satyanarayana Tummanapalli, Vijayasaradhi Sivalenka, Bin Hu, Tao Ji, Bin Zhong
  • PIPERAZINE DERIVATIVES AS HIV PROTEASE INHIBITORS
    Publication number: 20170073354
    Abstract: The present invention is directed to compounds of Formula I pharmaceutical compositions comprising the same, and their use in the inhibition of HIV protease, the inhibition of HIV replication, the prophylaxis of infection by HIV, the treatment of infection by HIV, and the prophylaxis, treatment, and delay in the onset or progression of AIDS.
    Type: Application
    Filed: March 6, 2015
    Publication date: March 16, 2017
    Applicants: Merck Sharp & Dohme Corp., MSD R&D (China) Co., Ltd.
    Inventors: Peter D. Williams, John A. McCauley, Christopher J. Bungard, David Jonathan Bennett, Sherman T. Waddell, Gregori J. Morriello, Lehua Chang, Michael P. Dwyer, M. Katharine Holloway, Alejandro Crespo, Xin-Jie Chu, Catherine Wiscount, H. Marie Loughran, Jesse J. Manikowski, Jurgen Schulz, Kartik M. Keertikar, Bin Hu, Bin Zhong, Tao Ji
  • PIPERAZINE DERIVATIVES AS HIV PROTEASE INHIBITORS
    Publication number: 20160159752
    Abstract: The present invention is directed to piperazine derivatives, pharmaceutical compositions comprising the same, and their use in the inhibition of HIV protease, the inhibition of HIV replication, the prophylaxis of infection by HIV, the treatment of infection by HIV, and the prophylaxis, treatment, and delay in the onset or progression of AIDS.
    Type: Application
    Filed: July 29, 2014
    Publication date: June 9, 2016
    Applicants: Merck Sharp & Dohme Corp., MSD R&D (CHINA) CO., LTD.
    Inventors: Peter D. Williams, John A. McCauley, David Jonathan Bennett, Christopher J. Bungard, Lehua Chang, Michael P. Dwyer, M. Katharine Holloway, Kartik M. Keertikar, H. Marie Loughran, Jessie J. Manikowski, Gregori J. Morriello, Dong-Ming Shen, Edward C. Sherer, Jurgen Schultz, Sherman T. Waddell, Catherine M. Wiscount, Nicolas Zorn, Xin-Jie Chu, Satyanarayana Tummanapalli, Vijayasaradhi Sivalenka, Bin Hu, Tao Ji, Bin Zhong
  • Substituted cyclopropyl compounds, compositions containing such compounds and methods of treatment
    Patent number: 8957062
    Abstract: Substituted cyclopropyl compounds of the formula I: and pharmaceutically acceptable salts thereof are disclosed as useful for treating or preventing type 2 diabetes and similar conditions. The compounds are useful as agonists of the G-protein coupled receptor GPR-119. Pharmaceutical compositions and methods of treatment are also included.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: February 17, 2015
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Scott Edmondson, Zhiqiang Guo, Harold B. Wood, Andrew W. Stamford, Michael W. Miller, Duane E. DeMong, Gregori J. Morriello, Rajan Anand, Vincent J. Colandrea, Megan Macala, Milana Maletic, Cheng Zhu, Yuping Zhu, Wanying Sun, Kake Zhao, Yong Huang, Joel M. Harris, Lehua Chang, Nam Fung Kar, Zhiyong Hu, Liping Wang, Bowei Wang, Ping Liu, Jason W. Szewczyk, William B. Geiss
  • Pyrrolidine derived ?3 adrenergic receptor agonists
    Patent number: 8933102
    Abstract: The present invention provides compounds of Formula (I), pharmaceutical compositions thereof, and method of using the same in the treatment or prevention of diseases mediated by the activation of b3-adrenoceptor. Formula (I).
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: January 13, 2015
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Gregori J. Morriello, Lehua Chang, Scott D. Edmondson
  • SUBSTITUTED CYCLOPROPLY COMPOUNDS, COMPOSITIONS CONTAINING SUCH COMPOUNDS AND METHODS OF TREATMENT
    Publication number: 20140057893
    Abstract: Substituted cyclopropyl compounds of the formula I: and pharmaceutically acceptable salts thereof are disclosed as useful for treating or preventing type 2 diabetes and similar conditions. The compounds are useful as agonists of the G-protein coupled receptor GPR-119.
    Type: Application
    Filed: April 5, 2012
    Publication date: February 27, 2014
    Applicant: Merck Sharp & Dohme Corp.
    Inventors: Scott Edmondson, Zhiqiang Guo, Harold B. Wood, Andrew W. Stamford, Michael W. Miller, Duane E. DeMong, Gregori J. Morriello, Rajan Anand, Vincent J. Colandrea, Megan Macala, Milana Maletic, Cheng Zhu, Yuping Zhu, Wanying Sun, Kake Zhao, Yong Huang, Joel M. Harris, Lehua Chang, Nam Fung Kar, Zhiyong Hu, Liping Wang, Bowei Wang, Ping Liu, Jason W. Szewczyk, William B. Geiss
  • Hydroxymethyl pyrrolidines as beta 3 adrenergic receptor agonists
    Patent number: 8653260
    Abstract: The present invention provides compounds of Formula (I), pharmaceutical compositions thereof, and method of using the same in the treatment or prevention of diseases mediated by the activation of ?3-adrenoceptor.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: February 18, 2014
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Richard Berger, Lehua Chang, Scott D. Edmondson, Stephen D. Goble, Sookhee Nicole Ha, Nam Fung Kar, Ihor E. Kopka, Bing Li, Gregori J. Morriello, Chris R. Moyes, Ding-Ming Shen, Liping Wang, Cheng Zhu
  • Pyrrolidine-derived beta 3 adrenergic receptor agonists
    Patent number: 8618144
    Abstract: The present invention provides compounds of Formula (I), pharmaceutical compositions thereof, and method of using the same in the treatment or prevention of diseases mediated by the activation of ?3-adrenoceptor.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: December 31, 2013
    Assignee: Merck Sharp & Dohme Corp
    Inventors: Peter Lin, Lehua Chang, Scott D. Edmondson
  • Pyrrolidine derived beta 3 adrenergic receptor agonists
    Patent number: 8604038
    Abstract: The present invention provides compounds of Formula (I), pharmaceutical compositions thereof, and method of using the same in the treatment or prevention of diseases mediated by the activation of ?3-adrenoceptor.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: December 10, 2013
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Scott D. Edmondson, Lehua Chang, Nam Fung Kar, Gergori J. Morriello, Christopher R. Moyes, Dong-Ming Shen, Cheng Zhu, Neville J. Anthony, Philip Jones, Graham F. Smith, Mark E. Scott, Christopher F. Thompson, Joon Jung, Carolyn Cammarano, Dawn Marie Hoffman
  • NOVEL PYRROLIDINE DERIVED BETA 3 ADRENERGIC RECEPTOR AGONISTS
    Publication number: 20130225599
    Abstract: The present invention provides compounds of Formula (I), pharmaceutical compositions thereof, and method of using the same in the treatment or prevention of diseases mediated by the activation of b3-adrenoceptor. Formula (I).
    Type: Application
    Filed: October 24, 2011
    Publication date: August 29, 2013
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: Gregori J. Morriello, Lehua Chang, Scott D. Edmonson
  • Hydroxymethyl pyrrolidines as beta 3 adrenergic receptor agonists
    Patent number: 8501786
    Abstract: The present invention provides compounds of Formula I, pharmaceutical compositions thereof, and method of using the same in the treatment or prevention of diseases mediated by the activation of ?3-adrenoceptor.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: August 6, 2013
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Richard Berger, Lehua Chang, Scott D. Edmondson, Stephen D. Goble, Bart Harper, Nam Fung Kar, Ihor E. Kopka, Bing Li, Gregori J. Morriello, Chris R. Moyes, Dong-Ming Shen, Liping Wang, Harvey Wendt, Cheng Zhu
  • Hydroxymethyl pyrrolidines as beta 3 adrenergic receptor agonists
    Patent number: 8399480
    Abstract: The present invention provides compounds of Formula (I), pharmaceutical compositions thereof, and method of using the same in the treatment or prevention of diseases mediated by the activation of ?3-adrenoceptor.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: March 19, 2013
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Richard Berger, Lehua Chang, Scott D. Edmondson, Stephen D. Goble, Sookhee Nicole Ha, Nam Fung Kar, Ihor E. Kopka, Bing Li, Gregori J. Morriello, Chris R. Moyes, Dong-Ming Shen, Liping Wang, Cheng Zhu
  • Pyrrolidine derived beta 3 adrenergic receptor agonists
    Patent number: 8354403
    Abstract: The present invention provides compounds of Formula (I), pharmaceutical compositions thereof, and method of using the same in the treatment or prevention of diseases mediated by the activation of ?3-adrenoceptor.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: January 15, 2013
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Scott D. Edmondson, Richard Berger, Lehua Chang, Vincent J. Colandrea, Jeffrey J. Hale, Bart Harper, Nam Fung Kar, Bing Li, Greg J. Morriello, Christopher R. Moyes, Deyou Sha, Dong-Ming Shen, Liping Wang, Harvey Wendt, Cheng Zhu
  • HYDROXYMETHYL PYRROLIDINES AS BETA 3 ADRENERGIC RECEPTOR AGONISTS
    Publication number: 20120258963
    Abstract: The present invention provides compounds of Formula (I), pharmaceutical compositions thereof, and method of using the same in the treatment or prevention of diseases mediated by the activation of ?3-adrenoceptor.
    Type: Application
    Filed: June 20, 2012
    Publication date: October 11, 2012
    Inventors: Richard Berger, Lehua Chang, Scott D. Edmondson, Stephen D. Goble, Sookhee Nicole Ha, Nam Fung Kar, Ihor E. Kopka, Bing Li, Gregori J. Morriello, Chris R. Moyes, Dong-Ming Shen, Liping Wang, Cheng Zhu
  • NOVEL PYRROLIDINE DERIVED BETA 3 ADRENERGIC RECEPTOR AGONISTS
    Publication number: 20120225886
    Abstract: The present invention provides compounds of Formula (I), pharmaceutical compositions thereof, and method of using the same in the treatment or prevention of diseases mediated by the activation of ?3-adrenoceptor.
    Type: Application
    Filed: August 24, 2010
    Publication date: September 6, 2012
    Applicant: Merck Sharp & Dohme, Corp.
    Inventors: Scott D. Edmondson, Lehua Chang, Nam Fung Kar, Gregori J. Morriello, Christopher R. Moyes, Dong-Ming Shen, Cheng Zhu, Neville J. Anthony, Philip Jones, Graham F. Smith, Mark E. Scott, Christopher F. Thompson, Joon Jung, Carolyn Cammarano, Dawn Marie Hoffman