Patents by Inventor Lian WU

Lian 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: 8664411
    Abstract: Disclosed are novel gamma secretase inhibitors of the formula. Also disclosed are methods of inhibiting gamma-secretase, methods of treating neurodegenerative diseases, and methods of treating Alzheimer's Disease. Also disclosed are processes for preparing alkenes in one reaction step using a mixture of an aldehyde (or ketone) and an alkyl substituted with two electron withdrawing groups, and reacting the mixture with: (a) a sulfonyl halide (e.g., a sulfonyl chloride) and a basic tertiary amine, or, (b) a sulfonyl anhydride and a basic amine, or (c) an aryl-C(O)-halide and a basic tertiary amine, or (d) an aryl-C(O)—O—C(O)-aryl and a basic tertiary amine, or (e) an heteroaryl-C(O)-halide and a basic tertiary amine, or (f) a heteroaryl-C(O)—O—C(O)-heteroaryl and a basic tertiary amine.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: March 4, 2014
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Wen-Lian Wu, Thomas A. Bara, Duane A. Burnett, John W. Clader, Martin S. Domalski, Yan Jin, Hubert B. Josien, Hongmei Li, Xian Liang, Dmitri A. Pissarnitski, Thavalakulamgara K. Sasikumar, Jesse K. Wong, Ruo Xu, Zhiqiang Zhao, Paul McNamara
  • Publication number: 20140018342
    Abstract: Disclosed herein are compounds of Formula (I) and pharmaceutically acceptable salts thereof, wherein each of the substituents is given the definition as set forth in the specification and claims. Also disclosed are pharmaceutical compositions containing the compound of Formula (I) and use of the compound in the treatment of neurodegenerative diseases or conditions such as Alzheimer's disease.
    Type: Application
    Filed: April 4, 2012
    Publication date: January 16, 2014
    Inventors: Wen-Lian Wu, Duane A. Burnett, William J. Greenlee
  • Patent number: 8618123
    Abstract: Disclosed are novel gamma secretase inhibitors of the formula (I): or a pharmaceutically acceptable salt, solvate, or ester thereof, wherein L1, n, X, Ar, Y, Z, Q, and Q1 are as defined herein. Also disclosed are methods for inhibiting gamma secretase, methods for treating Alzheimer's disease, methods of treating one or more neurodegenerative diseases, and methods of inhibiting the deposition of amyloid protein (e.g., amyloid beta protein) in, on or around neurological tissue (e.g., the brain) using the compounds of formula 1.0.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: December 31, 2013
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Thavalakulamgara K. Sasikumar, Duane A. Burnett, Theodros Asberom, Wen-Lian Wu, Hongmei Li, Ruo Xu, Hubert B. Josien
  • Patent number: 8569521
    Abstract: This invention discloses novel gamma secretase inhibitors of the formula: R2 and R3, or R2 and R4, or R3 and R4, together with the atoms to which they are bound, can form a fused cycloalkyl or fused heterocycloalkyl ring. The cycloalkyl ring or the heterocycloalkyl ring can be optionally substituted with one or more substituents. One or more compounds of formula (I), or formulations comprising such compounds, may be useful, e.g. in treating Alzheimer's Disease.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: October 29, 2013
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Theodros Asberom, Thomas A. Bara, Chad E. Bennett, Duane A. Burnett, Mary Anne Caplen, John W. Clader, David J. Cole, Martin S. Domalski, Hubert B. Josien, Chad E. Knutson, Hongmei Li, Mark D. McBriar, Dmitri A. Pissarnitski, Li Qiang, Murali Rajagopalan, Thavalakulamgara K. Sasikumar, Jing Su, Haiqun Tang, Wen-Lian Wu, Ruo Xu, Zhiqiang Zhao
  • Publication number: 20130261140
    Abstract: The present invention is directed to novel tricyclic heterocycles of structural formula I which are inhibitors of the dipeptidyl peptidase-IV enzyme and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly Type 2 diabetes. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which the dipeptidyl peptidase-IV enzyme is involved.
    Type: Application
    Filed: December 1, 2011
    Publication date: October 3, 2013
    Inventors: Duane A. Burnett, Zhiqiang Zhao, David Cole, Hubert Josien, Dmitri A. Pissarnitski, Thavalakulamgar Sasikumar, Wen-Lian Wu, Martin Domalski
  • Publication number: 20130029931
    Abstract: The preparation of Pleurotus tuber-regium polysaccharide functionalized nano-selenium hydrosol with anti-tumor activity includes the following steps: 1) at normal temperature and under normal pressure, adding a Vitamin C solution to an aqueous solution of Pleurotus tuber-regium polysaccharides, and mixing uniformly; 2) adding dropwise a selenium dioxide solution or a selenite solution to the solution while mixing uniformly; and 3) adding water to the solution to a pre-determined volume, to obtain a Pleurotus tuber-regium polysaccharide functionalized nano-selenium hydrosol when the red color of the product is no longer deepened. The polysaccharides are used to control the particle size of nano-selenium, to obtain functionalized nano-elemental selenium with high anti-tumor activity and low toxicity. The anti-tumor activity of the biologically active molecule polysaccharides and the physiological effect of nano-selenium are combined, and a synergistic anti-tumor effect is achieved.
    Type: Application
    Filed: July 25, 2012
    Publication date: January 31, 2013
    Applicant: The Hong Kong Polytechnic University
    Inventors: Tianfeng Chen, Ka Hing Wong, Hua-Lian Wu, Wenjie Zheng, Man Kin Wong, Wing Yin Cornelia Man
  • Publication number: 20120264736
    Abstract: This invention discloses novel gamma secretase inhibitors of the formula: R2 and R3, or R2 and R4, or R3 and R4, together with the atoms to which they are bound, can form a fused cycloalkyl or fused heterocycloalkyl ring. The cycloalkyl ring or the heterocycloalkyl ring can be optionally substituted with one or more substituents. One or more compounds of formula (I), or formulations comprising such compounds, may be useful, e.g. in treating Alzheimer's Disease.
    Type: Application
    Filed: October 6, 2011
    Publication date: October 18, 2012
    Applicant: Schering Corporation
    Inventors: Theodros Asberom, Thomas A. Bara, Chad E. Bennett, Duane A. Burnett, Mary Ann Caplen, John W. Clader, David J. Cole, Martin S. Domalski, Hubert B. Josien, Chad E. Knutson, Hongmei Li, Mark D. McBriar, Dmitri A. Pissarnitski, Li Qiang, Murali Rajagopalan, Thavalakulamgara K. Sasikumar, Jing Su, Haiqun Tang, Wen-Lian Wu, Ruo Xu, Zhiqiang Zhao
  • Patent number: 8067621
    Abstract: This invention discloses novel gamma secretase inhibitors of the formula: R2 and R3, or R2 and R4, or R3 and R4, together with the atoms to which they are bound, can form a fused cycloalkyl or fused heterocycloalkyl ring. The cycloalkyl ring or the heterocycloalkyl ring can be optionally substituted with one or more substitutents. One or more compounds of formula (I), or formulations comprising such compounds, may be useful, e.g. in treating Alzheimer's Disease.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: November 29, 2011
    Assignee: Schering Corporation
    Inventors: Theodros Asberom, Thomas A. Bara, Chad E. Bennett, Duane A. Burnett, Mary Ann Caplen, John W. Clader, David J. Cole, Martin S. Domalski, Hubert B. Josien, Chad E. Knutson, Hongmei Li, Mark D. McBriar, Dmitri A. Pissarnitski, Li Qiang, Murali Rajagopalan, Thavalakulamgara K. Sasikumar, Jing Su, Haiqun Tang, Wen-Lian Wu, Ruo Xu, Zhiqiang Zhao
  • Publication number: 20110236400
    Abstract: Disclosed are novel gamma secretase inhibitors of the formula. Also disclosed are methods of inhibiting gamma-secretase, methods of treating neurodegenerative diseases, and methods of treating Alzheimer's Disease. Also disclosed are processes for preparing alkenes in one reaction step using a mixture of an aldehyde (or ketone) and an alkyl substituted with two electron withdrawing groups, and reacting the mixture with: (a) a sulfonyl halide (e.g., a sulfonyl chloride) and a basic tertiary amine, or, (b) a sulfonyl anhydride and a basic amine, or (c) an aryl-C(O)-halide and a basic tertiary amine, or (d) an aryl-C(O)—O—C(O)-aryl and a basic tertiary amine, or (e) an heteroaryl-C(O)-halide and a basic tertiary amine, or (f) a heteroaryl-C(O)—O—C(O)-heteroaryl and a basic tertiary amine.
    Type: Application
    Filed: July 1, 2008
    Publication date: September 29, 2011
    Inventors: Wen-Lian Wu, Thomas A. Bara, Duane A. Burnett, John W. Clader, Martin S. Domalski, Yan Jin, Hubert B. Josien, Hongmei Li, Xian Liang, Dmitri A. Pissarnitski, Thavalakulamgara K. Sasikumar, Jesse K. Wong, Ruo Xu, Zhiqiang Zhao, Paul E. McNamara
  • Patent number: 7989464
    Abstract: In its many embodiments, the present invention provides tricyclic compounds of formula I (wherein J1-J4, X, and R1-R5 are as defined herein) useful as metabotropic glutamate receptor (mGluR) antagonists, particularly as selective metabotropic glutamate receptor 1 antagonists, pharmaceutical compositions containing the compounds, and methods of treatment using the compounds and compositions to treat diseases associated with metabotropic glutamate receptor (e.g., mGluR1) such as, for example, pain, migraine, anxiety, urinary incontinence and neurodegenerative diseases such Alzheimer's disease.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: August 2, 2011
    Assignee: Schering Corporation
    Inventors: Julius J. Matasi, Deen Tulshian, Duane A. Burnett, Wen-Lian Wu, Peter Korakas, Lisa S. Silverman, Thavalakulamgara K. Sasikumar, Li Qiang, Martin S. Domalski
  • Publication number: 20110110948
    Abstract: Disclosed are novel gamma secretase inhibitors of the formula (I): or a pharmaceutically acceptable salt, solvate, or ester thereof, wherein L1, n, X, Ar, Y, Z, Q, and Q1 are as defined herein. Also disclosed are methods for inhibiting gamma secretase, methods for treating Alzheimer's disease, methods of treating one or more neurodegenerative diseases, and methods of inhibiting the deposition of amyloid protein (e.g., amyloid beta protein) in, on or around neurological tissue (e.g., the brain) using the compounds of formula 1.0.
    Type: Application
    Filed: July 15, 2008
    Publication date: May 12, 2011
    Applicant: SCHERING CORPORATION
    Inventors: Thavalakulamgara K. Sasikumar, Duane A. Burnett, Theodros Asberom, Wen-Lian Wu, Hongmei Li, Ruo Xu, Hubert B. Josien
  • Publication number: 20110040122
    Abstract: The present invention provides a simple, safe and more efficient process for preparing metal salts of valproic acid. The process includes steps of: (i) mixing valproic acid and a metal hydroxide (either dry solid or aqueous solution) in a drier to form a reaction mixture; and (ii) removing water, which is produced during the step of mixing the valproic acid and the metal hydroxide, from the reaction mixture to obtain the desired metal salts of valproic acid.
    Type: Application
    Filed: August 11, 2009
    Publication date: February 17, 2011
    Applicant: SCI PHARMTECH, INC.
    Inventors: Wen-Chih CHOU, Weichyun WONG, Yon-Lian WU
  • Patent number: 7767815
    Abstract: In its many embodiments, the present invention provides tricyclic compounds of formula I (wherein J1-J3, X, Z, and R1-R4 are as defined herein) useful as metabotropic glutamate receptor (mGluR) antagonists, particularly as selective metabotropic glutamate receptor 1 antagonists, pharmaceutical compositions containing the compounds, and methods of treatment using the compounds and compositions to treat diseases associated with metabotropic glutamate receptor (e.g., mGluR1) such as, for example, pain, migraine, anxiety, urinary incontinence and neurodegenerative diseases such Alzheimer's disease.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: August 3, 2010
    Assignee: Schering Corporation
    Inventors: Chad E. Bennett, Wen-Lian Wu, Duane A. Burnett
  • Patent number: 7598259
    Abstract: In its many embodiments, the present invention provides tricyclic compounds of formula I (wherein J1-J4, X, and R1-R5 are as defined herein) useful as metabotropic glutamate receptor (mGluR) antagonists, particularly as selective metabotropic glutamate receptor 1 antagonists, pharmaceutical compositions containing the compounds, and methods of treatment using the compounds and compositions to treat diseases associated with metabotropic glutamate receptor (e.g., mGluR1) such as, for example, pain, migraine, anxiety, urinary incontinence and neurodegenerative diseases such Alzheimer's disease.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: October 6, 2009
    Assignee: Schering Corporation
    Inventors: Julius J Matasi, Deen Tulshian, Duane A Burnett, Wen-Lian Wu, Peter Korakas, Lisa S. Silverman, Thavalakulamgara K. Sasikumar, Li Qiang, Martin S. Domalski
  • Publication number: 20090192178
    Abstract: In its many embodiments, the present invention provides tricyclic compounds of formula I (wherein J1-J4, X, and R1-R5 are as defined herein) useful as metabotropic glutamate receptor (mGluR) antagonists, particularly as selective metabotropic glutamate receptor 1 antagonists, pharmaceutical compositions containing the compounds, and methods of treatment using the compounds and compositions to treat diseases associated with metabotropic glutamate receptor (e.g., mGluR1) such as, for example, pain, migraine, anxiety, urinary incontinence and neurodegenerative diseases such Alzheimer's disease.
    Type: Application
    Filed: January 21, 2009
    Publication date: July 30, 2009
    Inventors: Julius J. Matasi, Deen Tulshian, Duane A. Burnett, Wen-Lian Wu, Peter Korakas, Lisa S. Silverman, Thavalakulamgara K. Sasikumar, Li Qiang, Martin S. Domalski
  • Publication number: 20090137575
    Abstract: In its many embodiments, the present invention provides tetracyclic compounds of formula I or formula II (wherein the various moieties are as defined herein) useful as metabotropic glutamate receptor (mGluR) antagonists, particularly as selective metabotropic glutamate receptor 1 antagonists, pharmaceutical compositions containing the compounds, and methods of treatment using the compounds and compositions to treat diseases associated with metabotropic glutamate receptor (e.g., mGluR1) such as, for example, pain, migraine, anxiety, urinary incontinence and neurodegenerative diseases such Alzheimer's disease.
    Type: Application
    Filed: December 17, 2008
    Publication date: May 28, 2009
    Inventors: Duane A. Burnett, Wen-Lian Wu
  • Patent number: 7511146
    Abstract: The present invention discloses compounds of formula I wherein Ar, Y, m, n, R1 and R4 are herein defined, said compounds being novel antagonists for melanin-concentrating hormone (MCH), as well as methods for preparing such compounds. In another embodiment, the invention discloses pharmaceutical compositions comprising such MCH antagonists as well as methods of using them to treat obesity, metabolic disorders, eating disorders such as hyperphagia, and diabetes.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: March 31, 2009
    Assignee: Schering Corporation
    Inventors: Duane A. Burnett, Wen-Lian Wu, Thavalakulamgara K. Sasikumar, William J. Greenlee, Mary Ann Caplen, Tao Guo, Rachael Catherine Hunter
  • Publication number: 20090082336
    Abstract: In its many embodiments, the present invention provides tricyclic compounds of formula I (wherein J1-J4, X, and R1-R5 are as defined herein) useful as metabotropic glutamate receptor (mGluR) antagonists, particularly as selective metabotropic glutamate receptor 1 antagonists, pharmaceutical compositions containing the compounds, and methods of treatment using the compounds and compositions to treat diseases associated with metabotropic glutamate receptor (e.g., mGluR1) such as, for example, pain, migraine, anxiety, urinary incontinence and neurodegenerative diseases such Alzheimer's disease.
    Type: Application
    Filed: November 4, 2008
    Publication date: March 26, 2009
    Inventors: Julius J. Matasi, Deen Tulshian, Duane A. Burnett, Wen-Lian Wu, Peter Korakas, Lisa S. Silverman, Thavalakulamgara K. Sasikumar, Li Qiang, Martin S. Donalski
  • Patent number: 7498441
    Abstract: The present invention discloses compounds which are novel antagonists for melanin-concentrating hormone (MCH), as well as methods for preparing such compounds. In other aspects, the invention is directed to pharmaceutical compositions comprising such MCH antagonists as well as methods of using them to treat obesity, metabolic disorders, eating disorders such as hyperphagia, and diabetes. Compounds of the invention generally have the structure: where the substituents are as defined herein.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: March 3, 2009
    Assignee: Schering Corporation
    Inventors: Thavalakulamgara K. Sasikumar, Wen-Lian Wu, Duane A. Burnett, Li Qiang
  • Patent number: 7485648
    Abstract: In its many embodiments, the present invention provides tricyclic compounds of formula I (wherein J1-J4, X, and R1—R5 are as defined herein) useful as metabotropic glutamate receptor (mGluR) antagonists, particularly as selective metabotropic glutamate receptor 1 antagonists, pharmaceutical compositions containing the compounds, and methods of treatment using the compounds and compositions to treat diseases associated with metabotropic glutamate receptor (e.g., mGluR1) such as, for example, pain, migraine, anxiety, urinary incontinence and neurodegenerative diseases such Alzheimer's disease.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: February 3, 2009
    Assignee: Schering Corporation
    Inventors: Julius J. Matasi, Deen Tulshian, Duane A. Burnett, Wen-Lian Wu, Peter Korakas, Lisa S. Silverman, Thavalakulamgara K. Sasikumar, Li Qiang, Martin S. Domalski