Patents by Inventor John Y. L. Chung

John Y. L. Chung 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: 10214554
    Abstract: The present invention is directed to a process for making Chloro-Substituted Nucleoside Phosphoramidate Compounds of formula (I): which are useful for the treatment and prophylaxis of HCV infection. The present invention is also directed to compounds that are useful as synthetic intermediates for making the compounds of formula (I).
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: February 26, 2019
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: John Y. L. Chung, Amude Kassim, John Limanto, Michael Shevlin, Peter E. Maligres, Daniel A. DiRocco, James F. Dropinski, Rose Mathew, Yi Ning Ji Chen, Edward C. Sherer, Mikhail Reibarkh, Artis Klapars, Alan Hyde, Susan L. Zultanski, Aaron Moment, Bryon Simmons, Tyler A. Davis, Timothy James Wright, Ralph Calabria, Louis charles Campeau
  • Publication number: 20190055216
    Abstract: The present invention relates to processes for the preparation of N-protected 4-((2S,5R)-5-((benzyloxy)amino)piperidine-2-carboxamido)piperidine-1-carboxylates. Such compounds have application in the preparation of beta-lactamase inhibitors such as 7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxamides and esters, in particular, the beta lactamase inhibitor, (2S,5R)-7-oxo-N-piperidin-4-yl-6-(sulfoxy)-1,6-diazabicyclo[3.2.1]octane-2-carboxamide. The present invention also encompasses intermediates useful in the disclosed processes and methods for their preparation.
    Type: Application
    Filed: January 30, 2017
    Publication date: February 21, 2019
    Applicants: MERCK SHARP & DOHME CORP., MERCK SHARP & DOHME LIMITED
    Inventors: Aaron M. Dumas, Jeremy P. Scott, Michael Shevlin, Zhijian Liu, John Y. L. Chung, Feng Yu, Dongfang Meng
  • Publication number: 20190016729
    Abstract: The present invention is directed to processes for preparing beta 3 agonists of Formula (I) and Formula (II) and their intermediates. The beta 3 agonists are useful in the treatment of certain disorders, including overactive bladder, urinary incontinence, and urinary urgency.
    Type: Application
    Filed: September 17, 2018
    Publication date: January 17, 2019
    Applicant: Merck Sharp & Dohme Corp.
    Inventors: John Y.L. Chung, Kevin Campos, Edwards Cleator, Robert F. Dunn, Andrew Gibson, R. Scott Hoerrner, Stephen Keen, Dave Lieberman, Zhuqing Liu, Joseph Lynch, Kevin M. Maloney, Feng Xu, Nobuyoshi Yasuda, Naoki Yoshikawa, Yong-Li Zhong
  • Patent number: 10087189
    Abstract: The present invention is directed to processes for preparing beta 3 agonists of Formula (I) and Formula (II) and their intermediates. The beta 3 agonists are useful in the treatment of certain disorders, including overactive bladder, urinary incontinence, and urinary urgency.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: October 2, 2018
    Assignee: MERCK SHARP & DOHME CORP.
    Inventors: John Y. L. Chung, Kevin Campos, Edward Cleator, Robert F. Dunn, Andrew Gibson, R. Scott Hoerrner, Stephen Keen, Dave Lieberman, Zhuqing Liu, Joseph Lynch, Kevin M. Maloney, Feng Xu, Nobuyoshi Yasuda, Naoki Yoshikawa, Yong-Li Zhong
  • Patent number: 10053466
    Abstract: A process for preparing a compound of structural Formula Ia: comprising Boc deprotection with TFA of: ?and reductive amination of:
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: August 21, 2018
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: John Y. L. Chung, Feng Peng, Yonggang Chen, Amude Mahmoud Kassim, Cheng-yi Chen, Mathew Maust, Mark McLaughlin, Michael J. Zacuto, Qinghao Chen, Lushi Tan, Zhiguo Jake Song, Yang Cao, Feng Xu
  • Publication number: 20180093992
    Abstract: A process for preparing a compound of structural Formula Ia: comprising Boc deprotection with TFA of: ?and reductive amination of:
    Type: Application
    Filed: December 5, 2017
    Publication date: April 5, 2018
    Inventors: John Y. L. Chung, Feng Peng, Yonggang Chen, Amude Mahmoud Kassim, Cheng-yi Chen, Mathew Maust, Mark McLaughlin, Michael J. Zacuto, Qinghao Chen, Lushi Tan, Zhiguo Jake Song, Yang Cao, Feng Xu
  • Publication number: 20180065973
    Abstract: The present invention is directed to processes for preparing beta 3 agonists of Formula (I) and Formula (II) and their intermediates. The beta 3 agonists are useful in the treatment of certain disorders, including overactive bladder, urinary incontinence, and urinary urgency.
    Type: Application
    Filed: November 9, 2017
    Publication date: March 8, 2018
    Applicant: Merck Sharp & Dohme Corp.
    Inventors: John Y.L. CHUNG, Kevin CAMPOS, Edward CLEATOR, Robert F. DUNN, Andrew GIBSON, R. Scott HOERRNER, Stephen KEEN, Dave LIEBERMAN, Zhuqing LIU, Joseph LYNCH, Kevin M. MALONEY, Feng XU, Nobuyoshi YASUDA, Naoki YOSHIKAWA, Yong-Li ZHONG
  • Publication number: 20180029981
    Abstract: The present invention is directed to a process for preparing a compound of formula I-11 through multiple-step reactions:
    Type: Application
    Filed: September 26, 2017
    Publication date: February 1, 2018
    Inventors: John Y.L. CHUNG, Kevin CAMPOS, Edward CLEATOR, Robert F. DUNN, Andrew GIBSON, R. Scott HOERRNER, Stephen KEEN, Dave LIEBERMAN, Zhuqing LIU, Joseph LYNCH, Kevin M. MALONEY, Feng XU, Nobuyoshi YASUDA, Naoki YOSHIKAWA, Yong-Li ZHONG
  • Patent number: 9862725
    Abstract: A process for preparing a compound of structural Formula Ia: comprising Boc deprotection with TFA of, reductive amination of:
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: January 9, 2018
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: John Y. L. Chung, Feng Peng, Yonggang Chen, Amude Mahmoud Kassim, Cheng-yi Chen, Mathew Maust, Mark McLaughlin, Michael J. Zacuto, Qinghao Chen, Lushi Tan, Zhiguo Jake Song, Yang Cao, Feng Xu
  • Patent number: 9822121
    Abstract: The present invention is directed to processes for preparing beta 3 agonists of Formula (I) and Formula (II) and their intermediates. The beta 3 agonists are useful in the treatment of certain disorders, including overactive bladder, urinary incontinence, and urinary urgency.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: November 21, 2017
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: John Y. L. Chung, Kevin Campos, Edward Cleator, Robert F. Dunn, Andrew Gibson, R. Scott Hoerrner, Stephen Keen, Dave Lieberman, Zhuqing Liu, Joseph Lynch, Kevin M. Maloney, Feng Xu, Nobuyoshi Yasuda, Naoki Yoshikawa, Yong-Li Zhong
  • Patent number: 9809536
    Abstract: The present invention is directed to a process for preparing a compound of formula I-11 through multiple-step reactions.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: November 7, 2017
    Assignee: MERCK SHARP & DOHME CORP.
    Inventors: John Y. L. Chung, Kevin Campos, Edward Cleator, Robert F. Dunn, Andrew Gibson, R Scott Hoerrner, Stephen Keen, Dave Lieberman, Zhuqing Liu, Joseph Lynch, Kevin M. Maloney, Feng Xu, Nobuyoshi Yasuda, Naoki Yoshikawa, Yong-Li Zhong
  • Publication number: 20170226146
    Abstract: The present invention is directed to a process for making Chloro-Substituted Nucleoside Phosphoramidate Compounds of formula (I): which are useful for the treatment and prophylaxis of HCV infection. The present invention is also directed to compounds that are useful as synthetic intermediates for making the compounds of formula (I).
    Type: Application
    Filed: February 8, 2017
    Publication date: August 10, 2017
    Inventors: John Y.L. Chung, Amude Kassim, John Limanto, Michael Shevlin, Peter E. Maligres, Daniel A. DiRocco, James F. Dropinski, Rose Mathew, Yi Ning Ji Chen, Edward C. Sherer, Mikhail Reibarkh, Artis Klapars, Alan Hyde, Susan L. Zultanski, Aaron Moment, Bryon Simmons, Tyler A. Davis, Timothy James Wright, Ralph Calabria, Louis Charles Campeau
  • Publication number: 20170158701
    Abstract: A process for preparing a compound of structural Formula Ia: comprising Boc deprotection with TFA of, reductive amination of:
    Type: Application
    Filed: July 16, 2015
    Publication date: June 8, 2017
    Inventors: John Y. L. Chung, Feng Peng, Yonggang Chen, Amude Mahmoud Kassim, Cheng-yi Chen, Mathew Maust, Mark McLaughlin, Michael J. Zacuto, Qinghao Chen, Lushi Tan, Zhiguo Jake Song, Yang Cao, Feng Xu
  • Publication number: 20160176884
    Abstract: The present invention is directed to processes for preparing beta 3 agonists of Formula (I) and Formula (II) and their intermediates. The beta 3 agonists are useful in the treatment of certain disorders, including overactive bladder, urinary incontinence, and urinary urgency.
    Type: Application
    Filed: March 1, 2016
    Publication date: June 23, 2016
    Applicant: Merck Sharp & Dohme Corp.
    Inventors: John Y.L. Chung, Kevin Campos, Edward Cleator, Robert F. Dunn, Andrew Gibson, R. Scott Hoerrner, Stephen Keen, Dave Lieberman, Zhuqing Liu, Joseph Lynch, Kevin M. Maloney, Feng Xu, Nobuyoshi Yasuda, Naoki Yoshikawa, Yong-Li Zhong
  • Patent number: 9315457
    Abstract: The present invention relates to polymorphic forms of a compound of formula A: This compound is useful as a glucagon receptor antagonist and serves as a pharmaceutically active ingredient for the treatment of type 2 diabetes and related conditions, such as hyperglycemia, obesity, dyslipidemia, and the metabolic syndrome. Hydrates, hemihydrates, anhydrates and similar polymorphic forms are included.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: April 19, 2016
    Assignee: Merck Sharp & Dohme Corp.
    Inventor: John Y. L. Chung
  • Publication number: 20160075650
    Abstract: The present invention relates to polymorphic forms of a compound of formula A: This compound is useful as a glucagon receptor antagonist and serves as a pharmaceutically active ingredient for the treatment of type 2 diabetes and related conditions, such as hyperglycemia, obesity, dyslipidemia, and the metabolic syndrome. Hydrates, hemihydrates, anhydrates and similar polymorphic forms are included.
    Type: Application
    Filed: March 26, 2015
    Publication date: March 17, 2016
    Applicant: Merck Sharp & Dohme Corp.
    Inventor: JOHN Y. L. CHUNG
  • Patent number: 9272999
    Abstract: The present invention relates to polymorphic forms of a compound of formula A: This compound is useful as a glucagon receptor antagonist and serves as a pharmaceutically active ingredient for the treatment of type 2 diabetes and related conditions, such as hyperglycemia, obesity, dyslipidemia, and the metabolic syndrome. Hydrates, hemihydrates, anhydrates and similar polymorphic forms are included.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: March 1, 2016
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: John Y. L. Chung, Yanfeng Zhang, Aaron S. Cote, Jeremy Scott, Yekaterina Vaynshteyn
  • Publication number: 20150197490
    Abstract: The present invention relates to polymorphic forms of a compound of formula A: This compound is useful as a glucagon receptor antagonist and serves as a pharmaceutically active ingredient for the treatment of type 2 diabetes and related conditions, such as hyperglycemia, obesity, dyslipidemia, and the metabolic syndrome. Hydrates, hemihydrates, anhydrates and similar polymorphic forms are included.
    Type: Application
    Filed: March 26, 2015
    Publication date: July 16, 2015
    Applicant: Merck Sharp & Dohme Corp.
    Inventors: John Y. L. Chung, Yanfeng Zhang, Aaron S. Cote, Jeremy Scott, Yekaterina Vaynshteyn
  • Patent number: 9012488
    Abstract: The present invention relates to polymorphic forms of a compound of formula A: This compound is useful as a glucagon receptor antagonist and serves as a pharmaceutically active ingredient for the treatment of type 2 diabetes and related conditions, such as hyperglycemia, obesity, dyslipidemia, and the metabolic syndrome. Hydrates, hemihydrates, anhydrates and similar polymorphic forms are included.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: April 21, 2015
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: John Y. L. Chung, Yanfeng Zhang, Laura Artino, Aaron S. Cote, Donal Desmond, Jeremy Scott, Yekaterina Vaynshteyn
  • Publication number: 20150087832
    Abstract: The present invention is directed to processes for preparing beta 3 agonists of Formula (I) and Formula (II) and their intermediates. The beta 3 agonists are useful in the treatment of certain disorders, including overactive bladder, urinary incontinence, and urinary urgency.
    Type: Application
    Filed: October 22, 2012
    Publication date: March 26, 2015
    Applicant: MERCK SHARP & DOHME, CORP.
    Inventors: John Y.L. Chung, Kevin Campos, Edward Cleator, Robert F. Dunn, Andrew Gibson, R. Scott Hoerrner, Stephen Keen, Dave Liebermann, Zhuqing Liu, Joseph Lynch, Kevine M. Maloney, Feng Xu, Nobuyoshi Yasuda, Naoki Yoshikawa, Yong-Li Zhong