Patents by Inventor Ying-Zi Xu

Ying-Zi Xu 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: 7262208
    Abstract: The present invention relates to compounds of formula (I): useful in treating Alzheimer's disease and other similar diseases. These compounds include inhibitors of the beta-secretase enzyme that are useful in the treatment of Alzheimer's disease and other diseases characterized by deposition of A beta peptide in a mammal. The compounds of the invention are useful in pharmaceutical compositions and methods of treatment to reduce A beta peptide formation.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: August 28, 2007
    Assignees: Elan Pharmaceuticals, Inc., Pharmacia & Upjohn Company
    Inventors: John A. Tucker, Brian A. Sherer, Ying Zi Xu, Louis Brogley, Shon R. Pulley, Jon S. Jacobs, James P. Beck, Varghese John
  • Publication number: 20070155753
    Abstract: The invention provides N-cyclic sulfonamido compounds of Formula I wherein A, B, R1, R1a, R2, R2a, R3 and R3a are as described in the specification. Compounds of Formula I are useful in treating or preventing cognitive disorders, such as Alzheimer's disease. The invention also encompasses pharmaceutical compositions comprising compounds of Formula I, methods of preparing compounds of formula I, and methods of treating cognitive disorders, such as Alzheimer's disease.
    Type: Application
    Filed: December 1, 2006
    Publication date: July 5, 2007
    Inventors: Xiaocong Ye, Albert Garofalo, Jacek Jagodzinski, Andrei Konradi, Christopher Semko, Jenifer Smith, Ying-zi Xu
  • Publication number: 20070142416
    Abstract: Disclosed are compounds which bind VLA-4. Certain of these compounds also inhibit leukocyte adhesion and, in particular, leukocyte adhesion mediated by VLA-4. Such compounds are useful in the treatment of inflammatory diseases in a human or animal subject such as asthma, Alzheimer's disease, atherosclerosis, AIDS dementia, diabetes, inflammatory bowel disease, rheumatoid arthritis, tissue transplantation, tumor metastasis and myocardial ischemia. The compounds can also be administered for the treatment of inflammatory brain diseases such as multiple sclerosis.
    Type: Application
    Filed: September 28, 2006
    Publication date: June 21, 2007
    Inventors: Christopher Semko, Ying-zi Xu, Frank Stappenbeck, Jenifer Smith, Kassandra Rossiter, Juri Fukuda, Andrei Konradi
  • Publication number: 20070129390
    Abstract: Disclosed are compounds which bind VLA-4. Certain of these compounds also inhibit leukocyte adhesion and, in particular, leukocyte adhesion mediated by VLA-4. Such compounds are useful in the treatment of inflammatory diseases in a mammalian patient, e.g., human, such as asthma, Alzheimer's disease, atherosclerosis, AIDS dementia, diabetes, inflammatory bowel disease, rheumatoid arthritis, tissue transplantation, tumor metastasis and myocardial ischemia. The compounds can also be administered for the treatment of inflammatory brain diseases such as multiple sclerosis.
    Type: Application
    Filed: September 28, 2006
    Publication date: June 7, 2007
    Inventors: Christopher Semko, Ying-zi Xu, Frank Stappenbeck, Jenifer Smith, Kassandra Rossiter, Juri Fukuda, Andrei Konradi
  • Patent number: 7223762
    Abstract: Disclosed are compounds which bind VLA-4. Certain of these compounds also inhibit leukocyte adhesion and, in particular, leukocyte adhesion mediated by VLA-4. Such compounds are useful in the treatment of inflammatory diseases in a mammalian patient, e.g., human, such as asthma, Alzheimer's disease, atherosclerosis, AIDS dementia, diabetes, inflammatory bowel disease, rheumatoid arthritis, tissue transplantation, tumor metastasis and myocardial ischemia. The compounds can also be administered for the treatment of inflammatory brain diseases such as multiple sclerosis.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: May 29, 2007
    Assignees: Elan Pharmaceuticals, Inc., Wyeth
    Inventors: Andrei W. Konradi, Michael A. Pliess, Eugene D. Thorsett, Susan Ashwell, Gregory S. Welmaker, Anthony Kreft, Dimitrios Sarantakis, Darren B. Dressen, Francine S. Grant, Christopher M. Semko, Ying-Zi Xu
  • Publication number: 20070099921
    Abstract: Disclosed are compounds which bind VLA-4. Certain of these compounds also inhibit leukocyte adhesion and, in particular, leukocyte adhesion mediated by VLA-4. Such compounds are useful in the treatment of inflammatory diseases in a mammalian patient, e.g., human, such as asthma, Alzheimer's disease, atherosclerosis, AIDS dementia, diabetes, inflammatory bowel disease, rheumatoid arthritis, tissue transplantation, tumor metastasis and myocardial ischemia. The compounds can also be administered for the treatment of inflammatory brain diseases such as multiple sclerosis.
    Type: Application
    Filed: October 16, 2006
    Publication date: May 3, 2007
    Inventors: Andrei Konradi, Christopher Semko, Ying-Zi Xu
  • Publication number: 20070093485
    Abstract: Disclosed are certain substituted N-phenylsulfonamide derivatives and related compounds. These compounds are useful as bradykinin antagonists to relieve adverse symptoms in mammals mediated, at least in part, by bradykinin including pain, inflammation, bronchoconstriction, cerebral edema, etc.
    Type: Application
    Filed: December 18, 2003
    Publication date: April 26, 2007
    Inventors: Francine Farouz, Michael Dappen, Ying-Zi Xu, Sarah Bartulis, Ryan Holcomb, Ramesh Kasar, Michael Pleiss, Eugene Thorsett, Xiaocong Ye, Andrei Konradi
  • Publication number: 20070049612
    Abstract: The invention provides N-cyclic sulfonamido compounds and salts of Formula I: wherein A is as described in the specification and R1 and R2 combine to form a [3.3.1] or a [3.2.1] ring system, where the nitrogen is attached to the two bridgehead carbons, and the [3.3.1] or [3.2.1] ring systems are optionally fused with an heteroaryl or heterocycloalkyl ring. Compounds of Formula I are useful in treating or preventing cognitive disorders, such as Alzheimer's Disease. The invention also encompasses pharmaceutical compositions comprising compounds of Formula I, methods of treating cognitive disorders, such as Alzheimer's disease, and the intermediates useful in preparing the compounds of Formula I.
    Type: Application
    Filed: August 18, 2006
    Publication date: March 1, 2007
    Inventors: Simeon Bowers, Albert Garofalo, Roy Hom, Andrei Konradi, Matthew Mattson, Martin Neitzel, Christopher Semko, Anh Truong, Jing Wu, Ying-zi Xu
  • Publication number: 20070037804
    Abstract: Disclosed are compounds of the formula: and the pharmaceutically acceptable salts thereof wherein the variables A, n, R5, R21—R24 and Q are defined herein. These compounds bind VLA-4. Certain of these compound also inhibit leukocyte adhesion and, in particular, leukocyte adhesion mediated by VLA-4. Such compounds are useful in the treatment of inflammatory diseases in a mammalian patient, e.g., human, such as asthma, Alzheimer's disease, atherosclerosis, AIDS dementia, diabetes, inflammatory bowel disease, rheumatoid arthritis, tissue transplantation, tumor metastasis and myocardial ischemia. The compounds can also be administered for the treatment of inflammatory brain diseases such as multiple sclerosis.
    Type: Application
    Filed: May 22, 2006
    Publication date: February 15, 2007
    Inventors: Frank Stappenbeck, Andrei Konradi, Jacek Jagodzinski, Christopher Semko, Ying-zi Xu, Jenifer Smith, Kassandra Rossiter
  • Publication number: 20070027131
    Abstract: Disclosed are compounds which bind ?4 integrins, preferably VLA-4. Certain of these compounds also inhibit leukocyte adhesion and, in particular, leukocyte adhesion mediated by ?4 integrins, preferably VLA-4. Such compounds are useful in the treatment of inflammatory diseases in a mammalian patient, e.g., human, such as asthma, Alzheimer's disease, atherosclerosis, AIDS dementia, diabetes, inflammatory bowel disease, rheumatoid arthritis, tissue transplantation, tumor metastasis and myocardial ischemia. The compounds can also be administered for the treatment of inflammatory brain diseases such as multiple sclerosis.
    Type: Application
    Filed: September 26, 2006
    Publication date: February 1, 2007
    Inventors: Andrei Konradi, Christopher Semko, Ying-zi Xu, Frank Stappenbeck, Brian Stupi, Jenifer Smith, Michael Pleiss, Eugene Thorsett
  • Patent number: 7135477
    Abstract: Disclosed are compounds which bind ?4 integrins, preferably VLA-4. Certain of these compounds also inhibit leukocyte adhesion and, in particular, leukocyte adhesion mediated by ?4 integrins, preferably VLA-4. Such compounds are useful in the treatment of inflammatory diseases in a mammalian patient, e.g., human, such as asthma, Alzheimer's disease, atherosclerosis, AIDS dementia, diabetes, inflammatory bowel disease, rheumatoid arthritis, tissue transplantation, tumor metastasis and myocardial ischemia. The compounds can also be administered for the treatment of inflammatory brain diseases such as multiple sclerosis.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: November 14, 2006
    Assignee: Elan Pharmaceuticals, Inc.
    Inventors: Andrei W. Konradi, Christopher M. Semko, Ying-zi Xu, Frank Stappenbeck, Brian P. Stupi, Jenifer Smith, Michael A. Pleiss, Eugene D. Thorsett
  • Patent number: 7049306
    Abstract: Disclosed are compounds which bind VLA-4. Certain of these compounds also inhibit leukocyte adhesion and, in particular, leukocyte adhesion mediated by VLA-4. Such compounds are useful in the treatment of inflammatory diseases in a mammalian patient, e.g., human, such as asthma, Alzheimer's disease, atherosclerosis, AIDS dementia, diabetes, inflammatory bowel disease, rheumatoid arthritis, tissue transplantation, tumor metastasis and myocardial ischemia. The compounds can also be administered for the treatment of inflammatory brain diseases such as multiple sclerosis.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: May 23, 2006
    Assignee: Elan Pharmaceuticals, Inc.
    Inventors: Andrei W. Konradi, Michael A. Pleiss, Eugene D. Thorsett, Darren B. Dressen, Francine S. Grant, Christopher Semko, Ying-Zi Xu
  • Patent number: 7026328
    Abstract: Disclosed are compounds which bind ?4 integrins, preferably VLA-4. Certain of these compounds also inhibit leukocyte adhesion and, in particular, leukocyte adhesion mediated by ?4 integrins, preferably VLA-4. Such compounds are useful in the treatment of inflammatory diseases in a mammalian patient, e.g., human, such as asthma, Alzheimer's disease, atherosclerosis, AIDS dementia, diabetes, inflammatory bowel disease, rheumatoid arthritis, tissue transplantation, tumor metastasis and myocardial ischemia. The compounds can also be administered for the treatment of inflammatory brain diseases such as multiple sclerosis.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: April 11, 2006
    Assignees: Elan Pharmaceuticals, Inc., Wyeth
    Inventors: Andrei W. Konradi, Christopher M. Semko, Ying-zi Xu, Frank Stappenbeck, Brian P. Stupl, Jenifer L. Smith, Michael A. Pleiss, Eugene D. Thorsett
  • Patent number: 7015216
    Abstract: Disclosed are a series of heteroaryl-?-alanine derivatives, compositions containing them, processes for their preparation and their use in medicine.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: March 21, 2006
    Assignees: Elan Pharmaceuticals, Inc., Wyeth
    Inventors: Andrei W. Konradi, Michael A. Pleiss, Eugene D. Thorsett, Susan Ashwell, Gregory S. Welmaker, Anthony Kreft, Dimitrios Sarantakis, Darren B. Dressen, Francine S. Grant, Christopher Semko, Ying-Zi Xu
  • Patent number: 7008949
    Abstract: Disclosed are compounds which bind ?4 integrins, where the ?4 integrin is preferably VLA-4. Certain of these compounds also inhibit leukocyte adhesion and, in particular, leukocyte adhesion mediated by ?4 integrins, where the ?4 integrin is preferably VLA-4. Such compounds are useful in the treatment of inflammatory diseases in a mammalian patient, e.g., human, such as asthma, Alzheimer's disease, atherosclerosis, AIDS dementia, diabetes, inflammatory bowel disease, rheumatoid arthritis, tissue transplantation, tumor metastasis and myocardial ischemia. The compounds can also be administered for the treatment of inflammatory brain diseases such as multiple sclerosis.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: March 7, 2006
    Assignees: Elan Pharmaceuticals, Inc., Wyeth
    Inventors: Andrei W. Konradi, Christopher M. Semko, Ying-zi Xu, Frank Stappenbeck, Brian P. Stupi, Jenifer L. Smith, Michael A. Pleiss, Eugene D. Thorsett
  • Patent number: 7005433
    Abstract: Disclosed are compounds which bind VLA-4. Certain of these compounds also inhibit leukocyte adhesion and, in particular, leukocyte adhesion mediated by VLA-4. Such compounds are useful in the treatment of inflammatory diseases in a mammalian patient, e.g., human, such as asthma, Alzheimer's disease, atherosclerosis, AIDS dementia, diabetes, inflammatory bowel disease, rheumatoid arthritis, tissue transplantation, tumor metastasis and myocardial ischemia. The compounds can also be administered for the treatment of inflammatory brain diseases such as multiple sclerosis.
    Type: Grant
    Filed: December 29, 2003
    Date of Patent: February 28, 2006
    Assignee: Elan Pharmaceuticals, Inc.
    Inventors: Andrei W. Konradi, Michael A. Pleiss, Eugene D. Thorsett, Darren B. Dressen, Francine S. Grant, Christopher Semko, Ying-Zi Xu
  • Patent number: 6953802
    Abstract: Disclosed are compounds which bind VLA-4. Certain of these compounds also inhibit leukocyte adhesion and, in particular, leukocyte adhesion mediated by VLA-4. Such compounds are useful in the treatment of inflammatory diseases in a mammalian patient, e.g., human, such as asthma, Alzheimer's disease, atherosclerosis, AIDS dementia, diabetes, inflammatory bowel disease, rheumatoid arthritis, tissue transplantation, tumor metastasis and myocardial ischemia. The compounds can also be administered for the treatment of inflammatory brain diseases such as multiple sclerosis.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: October 11, 2005
    Assignees: Elan Pharmaceuticals, Inc., Wyeth
    Inventors: Andrei W. Konradi, Michael A. Pleiss, Eugene D. Thorsett, Susan Ashwell, Gregory S. Welmaker, Anthony Kreft, Dimitrios Sarantakis, Darren B. Dressen, Francine S. Grant, Christopher Semko, Ying-Zi Xu
  • Publication number: 20050203093
    Abstract: Disclosed are compounds which bind VLA-4. Certain of these compounds also inhibit leukocyte adhesion and, in particular, leukocyte adhesion mediated by VLA-4. Such compounds are useful in the treatment of inflammatory diseases in a mammalian patient, e.g., human, such as asthma, Alzheimer's disease, atherosclerosis, AIDS dementia, diabetes, inflammatory bowel disease, rheumatoid arthritis, tissue transplantation, tumor metastasis and myocardial ischemia. The compounds can also be administered for the treatment of inflammatory brain diseases such as multiple sclerosis.
    Type: Application
    Filed: January 10, 2005
    Publication date: September 15, 2005
    Inventors: Andrei Konradi, Michael Pleiss, Eugene Thorsett, Susan Ashwell, Gregory Welmaker, Anthony Kreft, Dimitrios Sarantakis, Darren Dressen, Francine Grant, Christopher Semko, Ying-Zi Xu
  • Publication number: 20050192280
    Abstract: Disclosed are compounds which bind VLA-4. Certain of these compounds also inhibit leukocyte adhesion and, in particular, leukocyte adhesion mediated by VLA-4. Such compounds are useful in the treatment of inflammatory diseases in a mammalian patient, e.g., human, such as asthma, Alzheimer's disease, atherosclerosis, AIDS dementia, diabetes, inflammatory bowel disease, rheumatoid arthritis, tissue transplantation, tumor metastasis and myocardial ischemia. The compounds can also be administered for the treatment of inflammatory brain diseases such as multiple sclerosis.
    Type: Application
    Filed: April 14, 2005
    Publication date: September 1, 2005
    Inventors: Andrei Konradi, Michael Pleiss, Eugene Thorsett, Susan Ashwell, Gregory Welmaker, Anthony Kreft, Dimitrios Sarantakis, Darren Dressen, Francine Grant, Christopher Semko, Ying-Zi Xu
  • Patent number: 6911439
    Abstract: Disclosed are compounds which bind VLA-4. Certain of these compounds also inhibit leukocyte adhesion and, in particular, leukocyte adhesion mediated by VLA-4. Such compounds are useful in the treatment of inflammatory diseases in a mammalian patient, e.g., human, such as asthma, Alzheimer's disease, atherosclerosis, AIDS dementia, diabetes, inflammatory bowel disease, rheumatoid arthritis, tissue transplantation, tumor metastasis and myocardial ischemia. The compounds can also be administered for the treatment of inflammatory brain diseases such as multiple sclerosis.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: June 28, 2005
    Assignees: Elan Pharmaceuticals, Inc., Wyeth
    Inventors: Andrei W. Konradi, Michael A. Pleiss, Eugene D. Thorsett, Susan Ashwell, Gregory S. Welmaker, Anthony Kreft, Dimitrios Sarntakis, Darren B. Dressen, Francine S. Grant, Christopher Semko, Ying-Zi Xu