Patents by Inventor Liangqin Guo

Liangqin Guo 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: 20200102278
    Abstract: Disclosed herein is a compound of formula (I), or a pharmaceutically acceptable salt thereof. Also disclosed herein are uses of the compounds disclosed herein in the potential treatment or prevention of an IDO-associated disease or disorder. Also disclosed herein are compositions comprising a compound disclosed herein. Further disclosed herein are uses of the compositions in the potential treatment or prevention of an IDO-associated disease or disorder.
    Type: Application
    Filed: March 23, 2018
    Publication date: April 2, 2020
    Applicant: Merck Sharp & Dohme Corp.
    Inventors: Liangqin Guo, Yongxin Han, Kun Liu, Shuwen He, Joseph Kozlowski, Ravi Nargund, Wensheng Yu, Hongjun Zhang, Qinglin Pu, Derun Li, Abdelghani Achab, Guoqing Li
  • Publication number: 20200095212
    Abstract: Compounds of Formula I, or a pharmaceutically acceptable salt, solvate or hydrate thereof: (I). Also disclosed herein are uses of the compounds disclosed herein in the potential treatment or prevention of an IDO-associated disease or disorder. Also disclosed herein are compositions comprising a compound disclosed herein. Further disclosed herein are uses of the compositions in the potential treatment or prevention of an IDO-associated disease or disorder.
    Type: Application
    Filed: February 19, 2018
    Publication date: March 26, 2020
    Applicant: Merck Sharp & Dohme Corp.
    Inventors: Kun Liu, Dane Clausen, Liangqin Guo, Yongxin Han, Shuwen He, Joseph Kozlowski, Derun Li, Qinglin Pu, Wensheng Yu, Hongjun Zhang
  • Patent number: 10538497
    Abstract: Disclosed herein are compounds of formula (I) which are inhibitors of an IDO enzyme: (I). Also disclosed herein are uses of the compounds in the potential treatment or prevention of an IDO-associated disease or disorder. Also disclosed herein are compositions comprising these compounds. Further disclosed herein are uses of the compositions in the potential treatment or prevention of an IDO-associated disease or disorder.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: January 21, 2020
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Yongxin Han, Abdelghani Achab, Purakkattle Biju, Yongqi Deng, Xavier Fradera, Liangqin Guo, Shuwen He, Joseph Kozlowski, Ravi Kurukulasuriya, Kun Liu, Meredeth Ann McGowan, Qinglin Pu, Nunzio Sciammetta, Hongjun Zhang, Hua Zhou
  • Patent number: 10519147
    Abstract: Disclosed are compounds of Formula A, or a salt thereof, where Q, X, R1 and R2 are as defined herein, which compounds have properties for inhibiting Nav 1.7 ion channels found in peripheral and sympathetic neurons. Also described are pharmaceutical formulations comprising the compounds of Formula A or their salts, and methods of treating pain (acute, post-operative, neuropathic), or cough or itch disorders using the same.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: December 31, 2019
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Thomas J. Greshock, James Mulhearn, Liangqin Guo, Ting Zhang, Deping Wang, Ronald M. Kim, Mark E. Layton, Michael J. Kelly, III, Rajan Anand, Philippe Nantermet, Tianying Jian, Anthony J. Roecker, Walter Won, Gang Zhou
  • Publication number: 20190233406
    Abstract: Disclosed are compounds of Formula A, or a salt thereof: wherein R1, R2, and E are defined herein, which compounds have properties for inhibiting Nav 1.7 ion channels found in peripheral and sympathetic neurons. Also described are pharmaceutical formulations comprising the compounds of Formula A or their salts, and methods of treating pain disorders, cough, and itch using the same.
    Type: Application
    Filed: January 11, 2019
    Publication date: August 1, 2019
    Applicant: Merck Sharp & Dohme Corp.
    Inventors: Thomas J. Greshock, James Mulhearn, Junying Zheng, Ronald M. Kim, Ting Zhang, Anthony J. Roecker, Walter Won, Philippe Nantermet, Rajan Anand, Gang Zhou, Deping Wang, Liangqin Guo
  • Patent number: 10221167
    Abstract: Disclosed are compounds of Formula A, or a salt thereof: wherein R1, R2, and E are defined herein, which compounds have properties for inhibiting Nav 1.7 ion channels found in peripheral and sympathetic neurons. Also described are pharmaceutical formulations comprising the compounds of Formula A or their salts, and methods of treating pain disorders, cough, and itch using the same.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: March 5, 2019
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Thomas J. Greshock, James Mulhearn, Junying Zheng, Ronald M. Kim, Ting Zhang, Anthony J. Roecker, Walter Won, Philippe Nantermet, Rajan Anand, Gang Zhou, Deping Wang, Liangqin Guo
  • Patent number: 10189819
    Abstract: The present invention provides a compound of Formula I, and pharmaceutical compositions comprising one or more said compounds, and methods for using said compounds for treating or preventing unstable angina, refractory angina, myocardial infarction, transient ischemic attacks, atrial fibrillation, thrombotic stroke, embolic stroke, deep vein thrombosis, disseminated intravascular coagulation, ocular build up of fibrin, and reocclusion or restenosis of recanalized vessels. The compounds are selective Factor IXa inhibitors.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: January 29, 2019
    Assignees: Merck Sharp & Dohme, Corp., Mochida Paraceuticals Co., Ltd.
    Inventors: Ting Zhang, Yi-Heng Chen, Liangqin Guo, Alan Hruza, Tianying Jian, Bing Li, Dongfang Meng, Dann L. Parker, Edward C. Sherer, Harold B. Wood, Isao Sakurada
  • Publication number: 20180362482
    Abstract: Disclosed herein are compounds of formula (I) which are inhibitors of an IDO enzyme: (I). Also disclosed herein are uses of the compounds in the potential treatment or prevention of an IDO-associated disease or disorder. Also disclosed herein are compositions comprising these compounds. Further disclosed herein are uses of the compositions in the potential treatment or prevention of an IDO-associated disease or disorder.
    Type: Application
    Filed: December 12, 2016
    Publication date: December 20, 2018
    Applicant: Merck Sharp & Dohme Corp.
    Inventors: Yongxin Han, Abdelghani Achab, Purakkattle Biju, Yongqi Deng, Xavier Fradera, Liangqin Guo, Shuwen He, Joseph Kozlowski, Ravi Kurukulasuriya, Kun Liu, Meredeth Ann McGowan, Qinglin Pu, Nunzio Sciammetta, Hongjun Zhang, Hua Zhou
  • Publication number: 20180362518
    Abstract: Disclosed are compounds of Formula A, or a salt thereof, where Q, X, R1 and R2 are as defined herein, which compounds have properties for inhibiting Na 1.7 ion channels found in peripheral and sympathetic neurons. Also described are pharmaceutical formulations comprising the compounds of Formula A or their salts, and methods of treating pain (acute, post-operative, neuropathic), or cough or itch disorders using the same.
    Type: Application
    Filed: December 15, 2016
    Publication date: December 20, 2018
    Applicant: Merck Sharp & Dohme Corp.
    Inventors: Thomas J. Greshock, James Mulhearn, Liangqin Guo, Ting Zhang, Deping Wang, Ronald M. Kim, Mark E. Layton, Michael J. Kelly, III, Rajan Anand, Philippe Nantermet, Tianying Jian, Anthony J. Roecker, Walter Won, Gang Zhou
  • Patent number: 9914727
    Abstract: The present invention provides compounds of Formula (I) and pharmaceutical compositions comprising compounds of Formula I, and methods for using compounds of Formula I for treating or preventing thromboses, embolisms, hypercoaguability or fibrotic changes.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: March 13, 2018
    Assignees: Merck Sharp & Dohme Corp., Mochida Pharmaceutical Co., Ltd.
    Inventors: Cameron James Smith, John Qiang Tan, Ting Zhang, James Balkovec, William John Greenlee, Liangqin Guo, Yi-Heng Chen, Yili Chen, Samuel Chackalamannil, Tomokazu Hirabayashi, Mika Sekioka
  • Publication number: 20180030036
    Abstract: The present invention provides a compound of Formula I, and pharmaceutical compositions comprising one or more said compounds, and methods for using said compounds for treating or preventing unstable angina, refractory angina, myocardial infarction, transient ischemic attacks, atrial fibrillation, thrombotic stroke, embolic stroke, deep vein thrombosis, disseminated intravascular coagulation, ocular build up of fibrin, and reocclusion or restenosis of recanalized vessels. The compounds are selective Factor IXa inhibitors.
    Type: Application
    Filed: December 7, 2015
    Publication date: February 1, 2018
    Applicants: MERCK SHARP & DOHME CORP., MOCHIDA PHARMACEUTICAL CO., LTD
    Inventors: Ting Zhang, Yi-Heng Chen, Liangqin Guo, Alan Hruza, Tianying Jian, Bing Li, Dongfang Meng, Dann L. Parker, Edward C. Sherer, Harold B. Wood, Isao Sakurada
  • Patent number: 9708308
    Abstract: The present invention provides a compound of Formula (I) wherein R1 is H or C1-6 alkyl, R2, is H or C1-6 alkyl or CH2OH, R3 is H or C1-6 alkyl, and R4 is H or C1-6 alkyl, provided that when R1, R2, and R3 are H, R4 is C1-6 alkyl, and when R1, R2, and R4 are H, then R3 is C1-6 alkyl, and when R1, R3, and R4 are H, R2 is C1-6 alkyl or —CH2OH, and when R2, R3, and R4 are H, then R1 is C1-6 alkyl; A is 1) a 9-10 membered bicyclic heterocycle having 1-3 heteroatoms independently selected from N, S and O, which 9-10 membered bicyclic heterocycle is unsubstituted or substituted with R5 and unsubstituted or substituted with R6 and unsubstituted or substituted with NH2, or 2) a 6-9 membered monocyclic or bicyclic carbocyclic ring system unsubstituted or substituted with R5, unsubstituted or substituted with R6, and unsubstituted or substituted with —CH2NH2; and B is 1) a 5- or 6-membered monocyclic heterocycle having 1 or 2 heteroatoms independently selected from N, S or O, which is unsubstituted or substitut
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: July 18, 2017
    Assignees: Merck Sharp Dohme Corp., Mochida Pharmacuetical Co., Ltd.
    Inventors: Cameron James Smith, John Qiang Tan, Ting Zhang, James Balkovec, William John Greenlee, Liangqin Guo, Yi-Heng Chen, Yili Chen, Jiayi Xu, Samuel Chackalamannil, Tomokazu Hirabayashi, Hiroshi Nagasue, Kouki Ogawa
  • Patent number: 9695198
    Abstract: The present invention provides a compound of Formula (I) where A is a heterocycle ring system and B is a heterocycle ring system or aryl ring system, and pharmaceutical compositions comprising one or more said compounds, and methods for using said compounds for treating or preventing thromboses, embolisms, hypercoagulability or fibrotic changes.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: July 4, 2017
    Assignees: Merck Sharp & Dohme Corp., Mochida Pharmaceutical Co., Ltd.
    Inventors: Cameron James Smith, Edward Sherer, Louis-Charles Campeau, James Balkovec, William John Greenlee, Derun Li, Liangqin Guo, Tin-Yau Chan, Yi-Heng Chen, Yili Chen, Samuel Chackalamannil, John Qiang Tan, Tomokazu Hirabayashi, Mika Sekioka
  • Publication number: 20170174674
    Abstract: Disclosed are compounds of Formula A, or a salt thereof: wherein R1, R2, and E are defined herein, which compounds have properties for inhibiting Nav 1.7 ion channels found in peripheral and sympathetic neurons. Also described are pharmaceutical formulations comprising the compounds of Formula A or their salts, and methods of treating pain disorders, cough, and itch using the same.
    Type: Application
    Filed: December 14, 2016
    Publication date: June 22, 2017
    Applicant: Merck Sharp & Dohme Corp.
    Inventors: Thomas J. Greshock, James Mulhearn, Junying Zheng, Ronald M. Kim, Ting Zhang, Anthony J. Roecker, Walter Won, Philippe Nantermet, Rajan Anand, Gang Zhou, Deping Wang, Liangqin Guo
  • Publication number: 20150368269
    Abstract: The present invention provides a compound of Formula (I) where A is a heterocycle ring system and B is a heterocycle ring system or aryl ring system, and pharmaceutical compositions comprising one or more said compounds, and methods for using said compounds for treating or preventing thromboses, embolisms, hypercoagulability or fibrotic changes.
    Type: Application
    Filed: December 16, 2013
    Publication date: December 24, 2015
    Applicants: Merck Sharp & Dohme Corp., Mochida Pharmaceutical Co., Ltd.
    Inventors: Cameron James Smith, Edward Sherer, Louis-Charles Campeau, James Balkovec, William John Greenlee, Derun Li, Liangqin Guo, Tin-Yau Chan, Yi-Heng Chen, Yili Chen, Samuel Chackalamannil, John Qiang Tan, Tomokazu Hirabayashi, Mika Sekioka
  • Publication number: 20150329562
    Abstract: The present invention provides a compound of Formula (I) wherein R1, R2, R3 and R4 are independently H or C1-6 alkyl, provided that when R1, R2, and R3 are H, R4 is C1-6 alkyl, and when R1, R2, and R4 are H, R3 is C1-6 alkyl, and when R1, R3, and R4 are H, R2 is C1-6 alkyl, and when R2, R3, and R4 are H, R is C1-6 alkyl; and pharmaceutical compositions comprising one or more said compounds, and methods for using said compounds for treating or preventing thromboses, embolisms, hypercoagulability or fibrotic changes.
    Type: Application
    Filed: December 16, 2013
    Publication date: November 19, 2015
    Applicants: Merck Sharp & Dohme Corp., Mochida Pharmaceutical Co., Ltd.
    Inventors: Cameron James Smith, John Qiang Tan, Ting Zhang, James Balkovec, William John Greenlee, Liangqin Guo, Yi-Heng Chen, Yili Chen, Samuel Chackalamannil, Tomokazu Hirabayashi, Mika Sekioka
  • Publication number: 20150322056
    Abstract: The present invention provides a compound of Formula (I) wherein R1 is H or C1-6 alkyl, R2, is H or C1-6 alkyl or CH2OH, R3 is H or C1-6 alkyl, and R4 is H or C1-6 alkyl, provided that when R1, R2, and R3 are H, R4 is C1-6 alkyl, and when R1, R2, and R4 are H, then R3 is C1-6 alkyl, and when R1, R3, and R4 are H, R2 is C1-6 alkyl or —CH2OH, and when R2, R3, and R4 are H, then R1 is C1-6 alkyl; A is 1) a 9-10 membered bicyclic heterocycle having 1-3 heteroatoms independently selected from N, S and O, which 9-10 membered bicyclic heterocycle is unsubstituted or substituted with R5 and unsubstituted or substituted with R6 and unsubstituted or substituted with NH2, or 2) a 6-9 membered monocyclic or bicyclic carbocyclic ring system unsubstituted or substituted with R5, unsubstituted or substituted with R6, and unsubstituted or substituted with —CH2NH2; and B is 1) a 5- or 6-membered monocyclic heterocycle having 1 or 2 heteroatoms independently selected from N, S or O, which is unsubstituted or substitut
    Type: Application
    Filed: December 16, 2013
    Publication date: November 12, 2015
    Applicants: Mochida Pharmaceutical Co., Ltd., Merck Sharp & Dohme Corp.
    Inventors: Cameron James SMITH, John Qiang TAN, Ting ZHANG, James BALKOVEC, William John GREENLEE, Liangqin GUO, Yi-Heng CHEN, Yili CHEN, Jiayi XU, Samuel CHACKALAMANNIL, Tomokazu HIRABAYASHI, Hiroshi NAGASUE, Kouki OGAWA
  • Patent number: 8754099
    Abstract: Beta-carboline derivatives of structural formula I are selective antagonists of the somatostatin subtype receptor 3 (SSTR3) and are useful for the treatment of Type 2 diabetes mellitus and of conditions that are often associated with this disease, including hyperglycemia, insulin resistance, obesity, lipid disorders, and hypertension. The compounds are also useful for the treatment of depression and anxiety.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: June 17, 2014
    Assignee: Merck Sharp & Dohme Corp
    Inventors: Liangqin Guo, William K. Hagmann, Shuwen He, Zhong Lai, Jian Liu, Ravi P. Nargund, Shrenik K. Shah, Quang T. Truong
  • Publication number: 20120264777
    Abstract: Beta-carboline derivatives of structural formula I are selective antagonists of the somatostatin sub-type receptor 3 (SSTR3) and are useful for the treatment of Type 2 diabetes mellitus and of conditions that are often associated with this disease, including hyperglycemia, insulin resistance, obesity, lipid disorders, and hypertension. The compounds are also useful for the treatment of depression and anxiety.
    Type: Application
    Filed: January 11, 2011
    Publication date: October 18, 2012
    Applicant: Merck Sharp & Dohme Corp.
    Inventors: Liangqin Guo, William K. Hagmann, Shuwen He, Zhong Lai, Jian Liu, Ravi P. Nargund, Shrenik K. Shah, Quang T. Truong
  • Publication number: 20110201615
    Abstract: Beta-carboline derivatives of structural formula (I) are selective antagonists of the somatostatin subtype receptor 3 (SSTR3) and are useful for the treatment of Type 2 diabetes mellitus and of conditions that are often associated with this disease, including hyperglycemia, insulin resistance, obesity, lipid disorders, and hypertension. The compounds are also useful for the treatment of depression and anxiety.
    Type: Application
    Filed: October 19, 2009
    Publication date: August 18, 2011
    Inventors: Liangqin Guo, Jian Liu, Ravi P. Nargund, Alexander Pasternak, Lihu Yang, Zhixiong Ye