Patents by Inventor Hanqing Dong

Hanqing Dong 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: 11554171
    Abstract: The present invention relates to bifunctional compounds, which find utility as modulators of targeted ubiquitination, especially inhibitors of a variety of polypeptides and other proteins which are degraded and/or otherwise inhibited by bifunctional compounds according to the present invention. In particular, the present invention is directed to compounds, which contain on one end a VHL ligand which binds to the ubiquitin ligase and on the other end a moiety which binds a target protein such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of that protein. The present invention exhibits a broad range of pharmacological activities associated with compounds according to the present invention, consistent with the degradation/inhibition of targeted polypeptides.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: January 17, 2023
    Assignees: Arvinas Operations, Inc., Yale University
    Inventors: Yimin Qian, Hanqing Dong, Jing Wang, Michael Berlin, Andrew P. Crew, Craig M. Crews
  • Publication number: 20230012321
    Abstract: The present disclosure relates to ultra-pure forms, polymorphs, amorphous forms, and formulations of N-[(1r,4r)-4-(3-chloro-4-cyanophenoxy)cyclohexyl]-6-[4-({4-[2-(2,6-dioxopiperidin-3-yl)-6-fluoro-1,3-dioxo-2,3-dihydro-1H-isoindol-5-yl]piperazin-1-yl}methyl)piperidin-1-yl]pyridazine-3-carboxamide, referred to herein as Compound A: The present disclosure also relates methods of manufacturing and purifying the same, as well as intermediates useful in the synthesis of Compound A. The ultra-pure forms, polymorphs, amorphous forms, and formulations of Compound A can be used as therapeutic agents for the treatment of various diseases and conditions such as cancer.
    Type: Application
    Filed: May 6, 2021
    Publication date: January 12, 2023
    Applicant: Arvinas Operations, Inc.
    Inventors: Laura E.N. ALLAN, Chungpin Herman CHEN, Hanqing DONG, Robert J. DUGUID, John A. GROSSO, Royal J. HASKELL, III, Casey Keith JAGER, Venkata A. KATTUBOINA, Aditya Mohan KAUSHAL, Samuel Elliott KENNEDY, Rhys LLOYD, Miranda Annell NEESER, Yuping QIU, Hayley REECE, Maxwell Marco REEVE, Joseph P. REO, Jerod ROBERTSON, Mohammad Mehdi ZAHEDI
  • Publication number: 20230000994
    Abstract: The present disclosure relates to bifunctional compounds, which find utility as modulators of Rapidly Accelerated Fibrosarcoma (RAF, such as c-RAF, A-RAF and/or B-RAF; the target protein). In particular, the present disclosure is directed to bifunctional compounds, which contain on one end a Von Hippel-Lindau, cereblon, Inhibitors of Apotosis Proteins or mouse double-minute homolog 2 ligand which binds to the respective E3 ubiquitin ligase and on the other end a moiety which binds the target protein RAF, such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of target protein. The present disclosure exhibits a broad range of pharmacological activities associated with degradation/inhibition of target protein. Diseases or disorders that result from aggregation or accumulation of the target protein, or the constitutive activation of the target protein, are treated or prevented with compounds and compositions of the present disclosure.
    Type: Application
    Filed: July 28, 2021
    Publication date: January 5, 2023
    Inventors: Andrew P. Crew, Keith R. Hornberger, Jing Wang, Saul Jaime-Figueroa, Hanqing Dong, Lawrence B. Snyder
  • Publication number: 20220402907
    Abstract: The present disclosure relates to bifunctional compounds, which find utility as modulators of Kirsten rat sarcoma protein (target protein). In particular, the present disclosure is directed to bifunctional compounds, which contain on one end a Von Hippel-Lindau, cereblon, Inhibitors of Apotosis Proteins or mouse double-minute homolog 2 ligand which binds to the respective E3 ubiquitin ligase and on the other end a moiety which binds the target protein, such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of target protein. The present disclosure exhibits a broad range of pharmacological activities associated with degradation/inhibition of target protein. Diseases or disorders that result from aggregation, accumulation, and/or overactivation of the target protein are treated or prevented with compounds and compositions of the present disclosure.
    Type: Application
    Filed: June 28, 2021
    Publication date: December 22, 2022
    Inventors: Andrew P. Crew, Keith R. Hornberger, Jing Wang, Hanqing Dong
  • Publication number: 20220395576
    Abstract: Bifunctional compounds, which find utility as modulators of B-cell lymphoma 6 protein (BCL6; target protein), are described herein. In particular, the bifunctional compounds of the present disclosure contain on one end a cereblon ligand that binds to the respective E3 ubiquitin ligase and on the other end a moiety which binds the target protein, such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of target protein. The bifunctional compounds of the present disclosure exhibit a broad range of pharmacological activities associated with degradation/inhibition of target protein. Diseases or disorders that result from aggregation or accumulation of the target protein are treated or prevented with compounds and compositions of the present disclosure.
    Type: Application
    Filed: April 15, 2022
    Publication date: December 15, 2022
    Inventors: Michael Berlin, Hanqing Dong, Dan Sherman, Lawrence B. Snyder, Jing Wang, Wei Zhang
  • Publication number: 20220388984
    Abstract: The present disclosure relates to bifunctional compounds, which find utility as modulators of estrogen receptor (target protein). In particular, the present disclosure is directed to bifunctional compounds, which contain on one end at least one of a Von Hippel-Lindau ligand, a cereblon ligand, Inhibitors of Apoptosis Proteins ligand, mouse double-minute homolog 2 ligand, or a combination thereof, which binds to the respective E3 ubiquitin ligase, and on the other end a moiety which binds the target protein, such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of target protein. The present disclosure exhibits a broad range of pharmacological activities associated with degradation/inhibition of target protein. Diseases or disorders that result from aggregation or accumulation of the target protein are treated or prevented with compounds and compositions of the present disclosure.
    Type: Application
    Filed: June 25, 2021
    Publication date: December 8, 2022
    Inventors: Andrew P. Crew, Hanqing Dong, Keith R. Hornberger, Yimin Quian, Jing Wang
  • Publication number: 20220378726
    Abstract: The present disclosure relates to bifunctional compounds, which find utility as modulators of enhancer of zeste homolog 2 (target protein). In particular, the present disclosure is directed to bifunctional compounds, which contain on one end a Von Hippel-Lindau, cereblon, Inhibitors of Apotosis Proteins or mouse double-minute homolog 2 ligand which binds to the respective E3 ubiquitin ligase and on the other end a moiety which binds the target protein, such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of target protein. The present disclosure exhibits a broad range of pharmacological activities associated with degradation/inhibition of target protein. Diseases or disorders that result from aggregation or accumulation of the target protein are treated or prevented with compounds and compositions of the present disclosure.
    Type: Application
    Filed: June 22, 2021
    Publication date: December 1, 2022
    Inventors: Andrew P. Crew, Lawrence B. Snyder, Jing Wang, Hanqing Dong, Yimin Qian, Michael Berlin
  • Patent number: 11512083
    Abstract: The present invention relates to bifunctional compounds, which find utility as modulators of targeted ubiquitination, especially inhibitors of a variety of polypeptides and other proteins which are degraded and/or otherwise inhibited by bifunctional compounds according to the present invention. In particular, the present invention is directed to compounds, which contain on one end a VHL ligand which binds to the ubiquitin ligase and on the other end a moiety which binds a target protein such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of that protein. The present invention exhibits a broad range of pharmacological activities associated with compounds according to the present invention, consistent with the degradation/inhibition of targeted polypeptides.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: November 29, 2022
    Assignees: Arvinas Operations, Inc., Yale University
    Inventors: Andrew P. Crew, Craig M. Crews, Xin Chen, Hanqing Dong, Caterina Ferraro, Yimin Qian, Kam Siu, Jing Wang, Meizhong Jin, Michael Berlin, Kurt Zimmermann
  • Publication number: 20220370416
    Abstract: Bifunctional compounds, which find utility as modulators of Kirsten ras sarcoma protein (KRas or KRAS), are described herein. In particular, the hetero-bifunctional compounds of the present disclosure contain on one end a moiety that binds to the Von Hippel-Lindau E3 ubiquitin ligase and on the other end a moiety which binds KRas, such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of target protein. The hetero-bifunctional compounds of the present disclosure exhibit a broad range of pharmacological activities associated with degradation/inhibition of target protein. Diseases or disorders that result from aberrant regulation of the target protein are treated or prevented with compounds and compositions of the present disclosure.
    Type: Application
    Filed: April 6, 2021
    Publication date: November 24, 2022
    Inventors: Ling Chu, Craig M. Crews, Hanqing Dong, Keith R. Hornberger, Jesus Raul Medina, Lawrence Snyder, Jing Wang
  • Publication number: 20220323457
    Abstract: Bifunctional compounds, which find utility as modulators of B-cell lymphoma 6 protein (BCL6; target protein), are described herein. In particular, the bifunctional compounds of the present disclosure contain on one end a Von Hippel-Lindau, cereblon, Inhibitors of Apotosis Proteins or mouse double-minute homolog 2 ligand that binds to the respective E3 ubiquitin ligase and on the other end a moiety which binds the target protein, such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of target protein. The bifunctional compounds of the present disclosure exhibit a broad range of pharmacological activities associated with degradation/inhibition of target protein. Diseases or disorders that result from aggregation or accumulation of the target protein are treated or prevented with compounds and compositions of the present disclosure.
    Type: Application
    Filed: October 16, 2020
    Publication date: October 13, 2022
    Inventors: Michael Berlin, Hanqing Dong, Dan Sherman, Lawrence Snyder, Jing Wang, Wei Zhang
  • Publication number: 20220315575
    Abstract: The present disclosure relates to bifunctional compounds, which find utility as modulators of tau protein. In particular, the present disclosure is directed to bifunctional compounds, which contain on one end a VHL or cereblon ligand which binds to the E3 ubiquitin ligase and on the other end a moiety which binds tau protein, such that tau protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of tau. The present disclosure exhibits a broad range of pharmacological activities associated with degradation/inhibition of tau protein. Diseases or disorders that result from aggregation or accumulation of tau protein are treated or prevented with compounds and compositions of the present disclosure.
    Type: Application
    Filed: July 17, 2020
    Publication date: October 6, 2022
    Inventors: Andrew P. Crew, Michael Berlin, Hanqing Dong, Alexey Ishchenko, Angela M. Cacace, Julian T. Chandler
  • Patent number: 11458123
    Abstract: The present disclosure relates to bifunctional compounds, which find utility as modulators of tau protein. In particular, the present disclosure is directed to bifunctional compounds, which contain on one end a VHL or cereblon ligand which binds to the E3 ubiquitin ligase and on the other end a moiety which binds tau protein, such that tau protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of tau. The present disclosure exhibits a broad range of pharmacological activities associated with degradation/inhibition of tau protein. Diseases or disorders that result from aggregation or accumulation of tau protein are treated or prevented with compounds and compositions of the present disclosure.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: October 4, 2022
    Assignee: ARVINAS OPERATIONS, INC.
    Inventors: Andrew P. Crew, Michael Berlin, Hanqing Dong, Alexey Ishchenko
  • Publication number: 20220274955
    Abstract: The present disclosure relates to bifunctional compounds, which find utility as modulators of estrogen receptor (target protein). In particular, the present disclosure is directed to bifunctional compounds, which contain on one end at least one of a Von Hippel-Lindau ligand, a cereblon ligand, inhibitors of apoptosis proteins ligand, mouse double-minute homolog 2 ligand, or a combination thereof, which binds to the respective E3 ubiquitin ligase, and on the other end a moiety which binds the target protein, such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of target protein. The present disclosure exhibits a broad range of pharmacological activities associated with degradation/inhibition of target protein. Diseases or disorders that result from aggregation or accumulation of the target protein are treated or prevented with compounds and compositions of the present disclosure.
    Type: Application
    Filed: July 17, 2020
    Publication date: September 1, 2022
    Inventors: Andrew P. CREW, Yimin QIAN, Hanqing DONG, Jing WANG
  • Patent number: 11427548
    Abstract: The present disclosure relates to bifunctional compounds, which find utility to degrade (and inhibit) Androgen Receptor. In particular, the present invention is directed to compounds, which contain on one end a VHL ligand which binds to the ubiquitin ligase and on the other end a moiety which binds Androgen Receptor such that Androgen Receptor is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of Androgen Receptor. The present invention exhibits a broad range of pharmacological activities associated with compounds according to the present invention, consistent with the degradation/inhibition of Androgen Receptor.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: August 30, 2022
    Assignee: ARVINAS OPERATIONS, INC.
    Inventors: Andrew P. Crew, Hanqing Dong, Jing Wang, Xin Chen, Yimin Qian, Kurt Zimmermann, Michael Berlin, Lawrence Snyder
  • Publication number: 20220267305
    Abstract: The present disclosure relates to bifunctional compounds, which find utility as modulators of estrogen receptor (target protein). In particular, the present disclosure is directed to bifunctional compounds, which contain on one end a cereblon, Von Hippel-Lindau ligase-binding moiety, Inhibitors of Apotosis Proteins, or mouse double-minute homolog 2 ligand, which binds to the respective E3 ubiquitin ligase, and on the other end a moiety which binds the target protein, such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of target protein. The present disclosure exhibits a broad range of pharmacological activities associated with degradation/inhibition of target protein. Diseases or disorders that result from aggregation or accumulation of the target protein are treated or prevented with compounds and compositions of the present disclosure.
    Type: Application
    Filed: April 22, 2022
    Publication date: August 25, 2022
    Inventors: Andrew P. Crew, Hanqing Dong, Keith R. Hornberger, Yimin Qian, Jing Wang
  • Publication number: 20220259154
    Abstract: The present disclosure relates to bifunctional compounds, which find utility to degrade (and inhibit) Androgen Receptor. In particular, the present disclosure is directed to compounds, which contain on one end a cereblon ligand which binds to the E3 ubiquitin ligase and on the other end a moiety which binds Androgen Receptor, such that Androgen Receptor is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of Androgen Receptor. The present disclosure exhibits a broad range of pharmacological activities associated with compounds according to the present disclosure, consistent with the degradation/inhibition of Androgen Receptor.
    Type: Application
    Filed: December 1, 2021
    Publication date: August 18, 2022
    Inventors: Michael BERLIN, Andrew P. CREW, Craig M. CREWS, Hanqing DONG, Keith R. HORNBERGER, Lawrence B. SNYDER, Jing WANG, Kurt ZIMMERMANN
  • Patent number: 11384063
    Abstract: The present disclosure relates to bifunctional compounds, which find utility as modulators of estrogen receptor (target protein). In particular, the present disclosure is directed to bifunctional compounds, which contain on one end a cereblon, Von Hippel-Lindau ligase-binding moiety, Inhibitors of Apotosis Proteins, or mouse double-minute homolog 2 ligand, which binds to the respective E3 ubiquitin ligase, and on the other end a moiety which binds the target protein, such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of target protein. The present disclosure exhibits a broad range of pharmacological activities associated with degradation/inhibition of target protein. Diseases or disorders that result from aggregation or accumulation of the target protein are treated or prevented with compounds and compositions of the present disclosure.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: July 12, 2022
    Assignee: ARVINAS OPERATIONS, INC.
    Inventors: Andrew P. Crew, Hanqing Dong, Jing Wang, Yimin Qian
  • Patent number: 11352351
    Abstract: The present invention relates to bifunctional compounds, which find utility to degrade and (inhibit) Androgen Receptor. In particular, the present invention is directed to compounds, which contain on one end a VHL ligand which binds to the ubiquitin ligase and on the other end a moiety which binds Androgen Receptor such that Androgen Receptor is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of Androgen Receptor. The present invention exhibits a broad range of pharmacological activities associated with compounds according to the present invention, consistent with the degradation/inhibition of Androgen Receptor.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: June 7, 2022
    Assignee: ARVINAS OPERATIONS, INC.
    Inventors: Meizhong Jin, Andrew P. Crew, Hanqing Dong, Jing Wang, Xin Chen, Yimin Qian
  • Publication number: 20220162163
    Abstract: The description relates to Inhibitors of Apoptosis Proteins (IAPs) binding compounds, including bifunctional compounds comprising the same, which find utility as modulators of targeted ubiquitination, especially inhibitors of a variety of polypeptides and other proteins which are degraded and/or otherwise inhibited by bifunctional compounds according to the present invention. In particular, the description provides compounds, which contain on one end a ligand which binds to the IAP E3 ubiquitin ligase and on the other end a moiety which binds a target protein such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of that protein. Compounds can be synthesized that exhibit a broad range of pharmacological activities consistent with the degradation/inhibition of targeted polypeptides of nearly any type.
    Type: Application
    Filed: January 5, 2022
    Publication date: May 26, 2022
    Inventors: Michael Berlin, Andrew P. Crew, Hanqing Dong, Yimin Qian
  • Publication number: 20220144809
    Abstract: Bifunctional compounds, which find utility as modulators of androgen receptor (AR), are described herein. In particular, the bifunctional compounds of the present disclosure contain on one end a moiety that binds to the cereblon E3 ubiquitin ligase and on the other end a moiety which binds AR, such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of target protein. The bifunctional compounds of the present disclosure exhibit a broad range of pharmacological activities associated with degradation/inhibition of target protein. Diseases or disorders that result from aberrant regulation of the target protein are treated or prevented with compounds and compositions of the present disclosure.
    Type: Application
    Filed: October 27, 2021
    Publication date: May 12, 2022
    Inventors: Hanqing Dong, Lawrence B. Snyder, Jing Wang