Patents by Inventor Hyeong-Wook Choi

Hyeong-Wook Choi 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: 20190345192
    Abstract: Provided herein are compounds useful for the treatment of cancer.
    Type: Application
    Filed: February 15, 2019
    Publication date: November 14, 2019
    Applicant: Eisai R&D Management Co., Ltd.
    Inventors: Dae-Shik Kim, Frank Fang, Atsushi Endo, Hyeong-wook Choi, Ming-Hong Hao, Xingfeng Bao, Kuan-Chun Huang
  • Patent number: 10457698
    Abstract: A method of preparation of stereospecific synthesis of diastereomerically pure phosphorodiamidate morpholino oligomers (PMOs) of one of the following general formulas is provided:
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: October 29, 2019
    Assignee: Eisai R&D Management Co., Ltd
    Inventors: Atsushi Endo, Robert T. Yu, Francis Fang, Hyeong Wook Choi, Mingde Shan
  • Publication number: 20190315754
    Abstract: We provide compounds given by Formula I, which is shown in FIG. 3, or pharmaceutically acceptable salts thereof, as well as formulations thereof and methods of use of those compounds and formulations for treatment of cancer.
    Type: Application
    Filed: April 23, 2019
    Publication date: October 17, 2019
    Applicant: Eisai R&D Management Co., Ltd.
    Inventors: Wanjun Zheng, Xiaojie Zhu, Hong Du, Maarten Postema, Yimin Jiang, Jing Li, Robert Yu, Hyeong-wook Choi, Jaemoon Lee, Frank Fang, Daniel Custar
  • Publication number: 20190308992
    Abstract: The invention provides methods for the synthesis of a halichondrin macrolides through a macrocyclization strategy. The macrocyclization strategy of the present invention involves subjecting a non-macrocyclic intermediate to a carbon-carbon bond-forming reaction (e.g., an olefination reaction (e.g., Horner-Wadsworth-Emmons olefination), catalytic Ring-Closing Olefin Metathesis, or Nozaki-Hiyama-Kishi reaction) to afford a macrocyclic macrolide. The invention also provides compounds useful as intermediates in the synthesis of a halichondrin macrolides and methods for preparing the same.
    Type: Application
    Filed: April 18, 2019
    Publication date: October 10, 2019
    Inventors: Francis G. FANG, Dae-Shik KIM, Hyeong-Wook CHOI, Charles E. CHASE
  • Patent number: 10407439
    Abstract: The present invention relates to stereochemically defined polypropionates and methods for preparing and using the same. The stereochemically defined polypropionates may be useful in the synthesis of natural products and/or natural product-like libraries.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: September 10, 2019
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Francis G. Fang, Hyeong-Wook Choi, Silvio Campagna, Steven Mathieu
  • Publication number: 20190269692
    Abstract: Provided herein is N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-5-(ethyl (tetrahydro-2H-pyran-4-yl)amino)-4-methyl-4?-(morpholinomethyl)-[1,1?-biphenyl]-3-carboxamide hydrobromide. Also provided herein is a particular polymorph form of this compound.
    Type: Application
    Filed: February 8, 2019
    Publication date: September 5, 2019
    Inventors: Kevin Wayne KUNTZ, Kuan-Chun HUANG, Hyeong Wook CHOI, Kristen SANDERS, Steven MATHIEU, Arani CHANDA, Francis FANG
  • Patent number: 10316040
    Abstract: We provide compounds given by Formula I, which is shown in FIG. 3, or pharmaceutically acceptable salts thereof, as well as formulations thereof and methods of use of those compounds and formulations for treatment of cancer.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: June 11, 2019
    Assignee: Eisai R&D Management Co., LTD.
    Inventors: Wanjun Zheng, Xiaojie Zhu, Hong Du, Maarten Postema, Yimin Jiang, Jing Li, Robert Yu, Hyeong-wook Choi, Jaemoon Lee, Frank Fang, Daniel Custar
  • Patent number: 10308661
    Abstract: The invention provides methods for the synthesis of a halichondrin macrolides through a macrocyclization strategy. The macrocyclization strategy of the present invention involves subjecting a non-macrocyclic intermediate to a carbon-carbon bond-forming reaction (e.g., an olefination reaction (e.g., Homer-Wadsworth-Emmons olefination), catalytic Ring-Closing Olefin Metathesis, or Nozaki-Hiyama-Kishi reaction) to afford a macrocyclic macrolide. The invention also provides compounds useful as intermediates in the synthesis of a halichondrin macrolides and methods for preparing the same.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: June 4, 2019
    Assignee: EISAI R&D MANAGEMENT CO., LTD.
    Inventors: Francis G. Fang, Dae-Shik Kim, Hyeong-Wook Choi, Charles E. Chase
  • Publication number: 20190161495
    Abstract: The invention provides methods for the synthesis of a halichondrin macrolides or analogs thereof through a cyclization reaction strategy. The strategy of the present invention involves subjecting an intermediate to Prins reaction conditions to afford a macrolide. The invention also provides compounds useful as intermediates in the synthesis of a halichondrin macrolides or analogs thereof and methods for preparing the same.
    Type: Application
    Filed: June 30, 2017
    Publication date: May 30, 2019
    Inventors: Charles E. CHASE, Hyeong-Wook CHOI, Atsushi ENDO, Francis G. FANG, Dae-Shik KIM
  • Publication number: 20190144463
    Abstract: The invention provides methods for the synthesis of eribulin or a pharmaceutically acceptable salt thereof (e.g., eribulin mesylate) through a macrocyclization strategy. The macrocyclization strategy of the present invention involves subjecting a non-macrocyclic intermediate to a carbon-carbon bond-forming reaction (e.g., an olefination reaction (e.g., Horner-Wadsworth-Emmons olefination), Dieckmann reaction, catalytic Ring-Closing Olefin Metathesis, or Nozaki-Hiyama-Kishi reaction) to afford a macrocyclic intermediate. The invention also provides compounds useful as intermediates in the synthesis of eribulin or a pharmaceutically acceptable salt thereof and methods for preparing the same.
    Type: Application
    Filed: January 14, 2019
    Publication date: May 16, 2019
    Inventors: Francis G. FANG, Dae-Shik KIM, Hyeong-Wook CHOI, Charles E. CHASE, Jaemoon LEE
  • Patent number: 10245269
    Abstract: Provided herein is N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-5-(ethyl (tetrahydro-2H-pyran-4-yl)amino)-4-methyl-4?-(morpholinomethyl)-[1,1?-biphenyl]-3-carboxamide hydrobromide. Also provided herein is a particular polymorph form of this compound.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: April 2, 2019
    Assignees: Epizyme, Inc., Eisai R&D Management Co., Ltd.
    Inventors: Kevin Wayne Kuntz, Kuan-Chun Huang, Hyeong Wook Choi, Kristen Sanders, Steven Mathieu, Arani Chanda, Francis Fang
  • Patent number: 10246480
    Abstract: Provided herein are compounds useful for the treatment of cancer.
    Type: Grant
    Filed: February 17, 2018
    Date of Patent: April 2, 2019
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Dae-Shik Kim, Frank Fang, Atsushi Endo, Hyeong-Wook Choi, Ming-Hong Hao, Xingfeng Bao, Kuan-Chun Huang
  • Patent number: 10221189
    Abstract: The invention provides methods for the synthesis of eribulin or a pharmaceutically acceptable salt thereof (e.g., eribulin mesylate) through a macrocyclization strategy. The macrocyclization strategy of the present invention involves subjecting a non-macrocyclic intermediate to a carbon-carbon bond-forming reaction (e.g., an olefination reaction (e.g., Horner-Wadsworth-Emmons olefination), Dieckmann reaction, catalytic Ring-Closing Olefin Metathesis, or Nozaki-Hiyama-Kishi reaction) to afford a macrocyclic intermediate. The invention also provides compounds useful as intermediates in the synthesis of eribulin or a pharmaceutically acceptable salt thereof and methods for preparing the same.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: March 5, 2019
    Assignee: EISAI R&D MANAGEMENT CO., LTD.
    Inventors: Francis G. Fang, Dae-Shik Kim, Hyeong-Wook Choi, Charles E. Chase, Jaemoon Lee
  • Patent number: 10160768
    Abstract: The present invention relates to stereochemically defined polypropionates and methods for preparing and using the same. The stereochemically defined polypropionates may be useful in the synthesis of natural products and/or natural product-like libraries.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: December 25, 2018
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Francis G. Fang, Hyeong-Wook Choi, Silvio Campagna, Steven Mathieu
  • Publication number: 20180305362
    Abstract: We provide compounds given by Formula I, which is shown in FIG. 3, or pharmaceutically acceptable salts thereof, as well as formulations thereof and methods of use of those compounds and formulations for treatment of cancer.
    Type: Application
    Filed: October 14, 2016
    Publication date: October 25, 2018
    Applicant: Eisai R&D Management Co., Ltd.
    Inventors: Wanjun Zheng, Xiaojie Zhu, Hong Du, Maarten Postema, Yimin Jiang, Jing Li, Robert Yu, Hyeong-wook Choi, Jaemoon Lee, Frank Fang, Daniel Custar
  • Publication number: 20180282312
    Abstract: Provided herein are novel solid forms of N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-5-(ethyl (tetrahydro-2H-pyran-4-yl)amino)-4-methyl-4?-(morpholinomethyl)-[1,1?-biphenyl]-3-carboxamide hydrochloride, and related compositions and methods.
    Type: Application
    Filed: June 5, 2018
    Publication date: October 4, 2018
    Applicants: Epizyme, Inc., Eisai R&D Management Co., Ltd.
    Inventors: Kevin Wayne KUNTZ, Hyeong Wook CHOI, Steven MATHIEU, Kristen SANDERS, Arani CHANDA
  • Publication number: 20180243316
    Abstract: Provided herein is N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-5-(ethyl (tetrahydro-2H-pyran-4-yl)amino)-4-methyl-4?-(morpholinomethyl)-[1,1?-biphenyl]-3-carboxamide hydrobromide. Also provided herein is a particular polymorph form of this compound.
    Type: Application
    Filed: December 11, 2017
    Publication date: August 30, 2018
    Inventors: Kevin Wayne Kuntz, Kuan-Chun Huang, Hyeong Wook Choi, Kristen Sanders, Steven Mathieu, Arani Chanda, Francis Fang
  • Publication number: 20180237468
    Abstract: Provided herein are compounds useful for the treatment of cancer.
    Type: Application
    Filed: February 17, 2018
    Publication date: August 23, 2018
    Applicant: Eisai R&D Management Co., Ltd.
    Inventors: Dae-Shik KIM, Frank FANG, Atsushi ENDO, Hyeong-Wook CHOI, Ming-Hong HAO, Xingfeng BAO, Kuan-Chun HUANG
  • Publication number: 20180222932
    Abstract: We provide diastereomerically pure or substantially diastereomerically pure activated phosphoramidochloridate morpholino nucleosides, methods of their preparation, and methods of their use in stereospecific coupling for stereospecific synthesis of diastereomerically pure phosphorodiamidate morpholino oligomers (PMOs).
    Type: Application
    Filed: August 5, 2016
    Publication date: August 9, 2018
    Applicant: Eisai R&D Management Co., Ltd.
    Inventors: Atsushi Endo, Robert T. Yu, Francis Fang, Hyeong Wook Choi, Mingde Shan
  • Patent number: 10040782
    Abstract: Provided herein are novel solid forms of N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-5-(ethyl(tetrahydro-2H-pyran-4-yl)amino)-4-methyl-4?-(morpholinomethyl)-[1,1?-biphenyl]-3-carboxamide hydrochloride, and related compositions and methods.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: August 7, 2018
    Assignees: Epizyme, Inc., Eisai R&D Management Co., Ltd.
    Inventors: Kevin W. Kuntz, Hyeong-wook Choi, Steven Mathieu, Kristen Sanders, Arani Chanda