Patents by Inventor George G. Wu

George G. Wu 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: 12006291
    Abstract: The present invention relates to processes for preparing a Compound (1): or a pharmaceutically acceptable salt or solvate thereof. Compound (1) is useful as in many pharmaceutical agents, especially is useful as key intermediate in the synthesis of certain SARS-CoV-2 3CLpro inhibitors.
    Type: Grant
    Filed: January 10, 2023
    Date of Patent: June 11, 2024
    Assignee: Enanta Pharmaceuticals, Inc.
    Inventors: Kaicheng Zhu, Tao Wang, Jiajun Zhang, Hui Cao, Ruichao Shen, Guoqiang Wang, George G. Wu, Yat Sun Or
  • Publication number: 20240132512
    Abstract: The present invention features crystalline forms of Compound I, including polymorphs and pseudopolymorphs, which are useful in the preparation of pharmaceutical compositions.
    Type: Application
    Filed: October 5, 2023
    Publication date: April 25, 2024
    Inventors: Kaicheng Zhu, Tao Wang, Joseph Helble, Anthony Toto, Jiajun Zhang, George G. Wu, Yat Sun Or
  • Publication number: 20230295175
    Abstract: The present invention relates to processes for preparing a compound of Formula (A): or a pharmaceutically acceptable salt or solvate thereof. Compound of Formula (A) and pharmaceutical compositions are useful as SARS-CoV-2 3CL pro inhibitors.
    Type: Application
    Filed: March 17, 2023
    Publication date: September 21, 2023
    Inventors: Kaicheng Zhu, Tao Wang, Xin Zhang, Xiaowen Peng, Ruichao Shen, Jiajun Zhang, Wei Li, Hui Cao, Xuri Gao, Guoqiang Wang, George G. Wu, Yat Sun Or
  • Publication number: 20230234922
    Abstract: The present invention relates to processes for preparing a Compound (1): or a pharmaceutically acceptable salt or solvate thereof. Compound (1) is useful as in many pharmaceutical agents, especially is useful as key intermediate in the synthesis of certain SARS-CoV-2 3CLpro inhibitors.
    Type: Application
    Filed: January 10, 2023
    Publication date: July 27, 2023
    Inventors: Kaicheng Zhu, Tao Wang, Jiajun Zhang, Hui Cao, Ruichao Shen, Guoqiang Wang, George G. Wu, Yat Sun Or
  • Patent number: 9822116
    Abstract: This application discloses a novel process to synthesize 8-[{1-(3,5-Bis-(trifluoromethyl)phenyl)-ethoxy}-methyl]-8-phenyl-1,7-diaza-spiro[4.5]decan-2-one compounds, which may be used, for example, as NK-1 inhibitor compounds in pharmaceutical preparations, intermediates useful in said process, and processes for preparing said intermediates; also disclosed is a process for removal of metals from N-heterocyclic carbine metal complexes.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: November 21, 2017
    Assignee: OPKO Health, Inc.
    Inventors: George G. Wu, Gerald Werne, Xiaoyong Fu, Robert K. Orr, Frank Xing Chen, Jian Cui, Victoria M. Sprague, Fucheng Zhang, Ji Xie, Liansheng Zeng, Louis Peter Castellanos, Yuyin Chen, Marc Poirier, Ingrid Mergelsberg
  • Publication number: 20160145256
    Abstract: This application discloses a novel process to synthesize 8-[{1-(3,5-Bis-(trifluoromethyl)phenyl)-ethoxy}-methyl]-8-phenyl-1,7-diaza-spiro[4.5]decan-2-one compounds, which may be used, for example, as NK-1 inhibitor compounds in pharmaceutical preparations, intermediates useful in said process, and processes for preparing said intermediates; also disclosed is a process for removal of metals from N-heterocyclic carbine metal complexes.
    Type: Application
    Filed: February 1, 2016
    Publication date: May 26, 2016
    Inventors: George G. Wu, Gerald Werne, Xiaoyong Fu, Robert K. Orr, Frank Xing Chen, Jian Cui, Victoria M. Sprague, Fucheng Zhang, Ji Xie, Liansheng Zeng, Louis Peter Castellanos, Yuyin Chen, Marc Poirier, Ingrid Mergelsberg
  • Patent number: 9249144
    Abstract: This application discloses a novel process to synthesize 8-[{1-(3,5-Bis-(trifluoromethyl)phenyl)-ethoxy}-methyl]-8-phenyl-1,7-diaza-spiro[4.5]decan-2-one compounds, which may be used, for example, as NK-1 inhibitor compounds in pharmaceutical preparations, intermediates useful in said process, and processes for preparing said intermediates; also disclosed is a process for removal of metals from N-heterocyclic carbine metal complexes.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: February 2, 2016
    Assignee: OPKO Health, Inc.
    Inventors: George G. Wu, Gerald Werne, Xiaoyong Fu, Robert K. Orr, Frank Xing Chen, Jian Cui, Victoria M. Sprague, Fucheng Zhang, Ji Xie, Liansheng Zeng, Louis Peter Castellanos, Yuyin Chen, Marc Poirier, Ingrid Mergelsberg
  • Publication number: 20140031549
    Abstract: This application discloses a novel process to synthesize 8-[{1-(3,5-Bis-(trifluoromethyl)phenyl)-ethoxy}-methyl]-8-phenyl-1,7-diaza-spiro[4.5]decan-2-one compounds, which may be used, for example, as NK-1 inhibitor compounds in pharmaceutical preparations, intermediates useful in said process, and processes for preparing said intermediates; also disclosed is a process for removal of metals from N-heterocyclic carbine metal complexes.
    Type: Application
    Filed: October 1, 2013
    Publication date: January 30, 2014
    Applicant: OPKO Health, Inc.
    Inventors: George G. Wu, Gerald Werne, Xiaoyong Fu, Robert K. Orr, Frank Xing Chen, Jian Cui, Victoria M. Sprague, Fucheng Zhang, Ji Xie, Liansheng Zeng, Louis Peter Castellanos, Yuyin Chen, Marc Poirier, Ingrid Mergelsberg
  • Patent number: 8618314
    Abstract: This application discloses a novel process for the preparation of himbacine analogs useful as thrombin receptor antagonists. The process is based in part on the use of a base-promoted dynamic epimerization of a chiral nitro center.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: December 31, 2013
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: George G. Wu, Anantha Sudhakar, Tao Wang, Ji Xie, Frank X. Chen, Marc Poirier, Mingsheng Huang, Vijay Sabesan, Daw-long Kwok, Jian Cui, Xiaojing Yang, Tiruvettipuram K. Thiruvengadam, Jing Liao, Illia Zavialov, Hoa N. Nguyen, Ngiap Kie Lim
  • Publication number: 20120302745
    Abstract: This application discloses a novel process for the synthesis of himbacine analogs, as well as the compounds produced thereby. The synthesis proceeds by alternative routes including the cyclic ketal amide route, the chiral carbamate amide route, and the chiral carbamate ester route. The compounds produced thereby are useful as thrombin receptor antagonists.
    Type: Application
    Filed: August 2, 2012
    Publication date: November 29, 2012
    Inventors: Tiruvettipuram K. Thiruvengadam, Anantha R. Sudhakar, Ngiap Kie Lim, Daw-Iong Kwok, George G. Wu, Tao Wang, Mingsheng Huang, Michael D. Green
  • Patent number: 8273790
    Abstract: This application discloses a novel process for the synthesis of himbacine analogs, as well as the compounds produced thereby. The synthesis proceeds by alternative routes including the cyclic ketal amide route, the chiral carbamate amide route, and the chiral carbamate ester route. The compounds produced thereby are useful as thrombin receptor antagonists.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: September 25, 2012
    Assignee: Schering Corporation
    Inventors: Tiruvettipuram K. Thiruvengadam, Anantha Sudhakar, Ngiap Kie Lim, Daw-Iong Kwok, George G. Wu, Tao Wang, Mingsheng Huang, Michael D. Green
  • Patent number: 8258319
    Abstract: This application discloses a novel process for the preparation of himbacine analogs useful as thrombin receptor antagonists. The process is based in part on the use of a base-promoted dynamic epimerization of a chiral nitro center.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: September 4, 2012
    Assignee: Schering Corporation
    Inventors: George G. Wu, Anantha Sudhakar, Tao Wang, Ji Xie, Frank X. Chen, Marc Poirier, Mingsheng Huang, Vijay Sabesan, Daw-long Kwok, Jian Cui, Xiaojing Yang, Tiruvettipuram K. Thiruvengadam, Jing Liao, Ilia Zavialov, Hoa N. Nguyen, Ngiap Kie. Lim
  • Publication number: 20120142914
    Abstract: This application discloses a novel process for the synthesis of himbacine analogs, as well as the compounds produced thereby. The synthesis proceeds by alternative routes including the cyclic ketal amide route, the chiral carbamate amide route, and the chiral carbamate ester route. The compounds produced thereby are useful as thrombin receptor antagonists.
    Type: Application
    Filed: February 10, 2012
    Publication date: June 7, 2012
    Inventors: Tiruvettipuram K. Thiruvengadam, Anantha R. Sudhakar, Ngiap Kie Lim, Daw-Iong Kwok, George G. Wu, Tao Wang, Mingsheng Huang, Michael D. Green
  • Patent number: 8138180
    Abstract: This application discloses a novel process for the synthesis of himbacine analogs, as well as the compounds produced thereby. The synthesis proceeds by alternative routes including the cyclic ketal amide route, the chiral carbamate amide route, and the chiral carbamate ester route. The compounds produced thereby are useful as thrombin receptor antagonists.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: March 20, 2012
    Assignee: Schering Corporation
    Inventors: Tiruvettipuram K. Thiruvengadam, Anantha Sudhakar, Ngiap Kie Lim, Daw-long Kwok, George G. Wu, Tao Wang, Mingsheng Huang, Michael D. Green
  • Patent number: 8076479
    Abstract: Disclosed is a process for the synthesis of compounds of Formula I by sequentially aminating, first with a primary amine and then with a secondary amine, an intermediate compound of the structure of Formula E1, wherein R1 is a linear, branched, or cyclic alkyloxy functional group of the structure (—R2a—OH), R2a is a linear, branched or cyclic alkyl group, R2 is a linear, branched or cyclic alkyl group, and R3 is an alkylene-heterocycle, said process comprising forming intermediate compound of Formula E1 by reacting, in a refluxing reaction solvent selected from alcohols having 5 or less carbon atoms and mixtures of two or more thereof, a methanol solution of a salt of a 4-alkyl-3-amino-pyrazole compound of Formula C1, with a diamidization reagent selected from dimethylmalonate, monomethylmalonyl-chloride, and malonyl dichloride in the presence of a Lewis base having sufficient proton affinity to abstract a proton from the 1-position nitrogen on the pyrazole ring.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: December 13, 2011
    Assignee: Schering Corporation
    Inventors: Frank Xing Chen, Kartik M. Keertikar, Shen-Chun Kuo, Hong-Chang Lee, Ramani R. Raghavan, George G. Wu, Ji Xie
  • Patent number: 7989653
    Abstract: This application discloses a novel process for the preparation of himbacine analogs useful as thrombin receptor antagonists. The process is based in part on the use of a base-promoted dynamic epimerization of a chiral nitro center.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: August 2, 2011
    Assignee: Schering Corporation
    Inventors: George G. Wu, Anantha Sudhakar, Tao Wang, Ji Xie, Frank X. Chen, Marc Poirier, Mingsheng Huang, Vijay Sabesan, Daw-Iong Kwok, Jian Cui, Xiaojing Yang, Tiruvettipuram K. Thiruvengadam, Jing Liao, Ilia Zavialov, Hoa N. Nguyen, Ngiap Kie Lim
  • Publication number: 20100267947
    Abstract: This application discloses a novel process for the synthesis of himbacine analogs, as well as the compounds produced thereby. The synthesis proceeds by alternative routes including the cyclic ketal amide route, the chiral carbamate amide route, and the chiral carbamate ester route. The compounds produced thereby are useful as thrombin receptor antagonists.
    Type: Application
    Filed: June 30, 2010
    Publication date: October 21, 2010
    Applicant: SCHERING CORPORATION
    Inventors: Tiruvettipuram K. Thiruvengadam, Anantha R. Sudhakar, Ngiap Kie Lim, Daw-long Kwok, George G. Wu, Tao Wang, Mingsheng Huang, Michael D. Green
  • Patent number: 7772276
    Abstract: This application discloses a novel process for the synthesis of himbacine analogs, as well as the compounds produced thereby. The synthesis proceeds by alternative routes including the cyclic ketal amide route, the chiral carbamate amide route, and the chiral carbamate ester route. The compounds produced thereby are useful as thrombin receptor antagonists.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: August 10, 2010
    Assignee: Schering Corporation
    Inventors: Tiruvettipuram K. Thiruvengadam, Anantha R. Sudhakar, Ngiap-Kie Lim, Daw-long Kwok, George G. Wu, Tao Wang, Mingsheng Huang, Michael D. Green
  • Patent number: 7049440
    Abstract: An enantioselective process for preparing intermediates useful in the preparation of the chiral tricyclic compound of formula I is disclosed.
    Type: Grant
    Filed: October 1, 2003
    Date of Patent: May 23, 2006
    Assignee: Schering Corporation
    Inventors: Frank X. Chen, Yee-Shing Wong, Jeffrey M. Eckert, Feng Liang, Nanfei Zou, Agnes S. Kim-Meade, Marc Poirier, Tiruvettipuram K. Thiruvengadam, George G. Wu
  • Publication number: 20040122232
    Abstract: An enantioselective process for preparing intermediates useful in the preparation of the chiral tricyclic compound of formula I 1
    Type: Application
    Filed: October 1, 2003
    Publication date: June 24, 2004
    Applicant: SCHERING CORPORATION
    Inventors: Frank X. Chen, Yee-Shing Wong, Jeffrey M. Eckert, Feng Liang, Nanfei Zou, Agnes S. Kim-Meade, Marc Poirier, Tiruvettipuram K. Thiruvengadam, George G. Wu