Patents by Inventor Angel Guzman-Perez

Angel Guzman-Perez 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: 20140371201
    Abstract: The present invention provides compounds of Formula I, and pharmaceutically acceptable salts thereof, that are inhibitors of voltage-gated sodium channels, in particular Nav1.7. The compounds are useful for the treatment of diseases associated with the activity of sodium channels such as pain disorders and itch. Also provided are pharmaceutical compositions containing compounds of the present invention.
    Type: Application
    Filed: June 11, 2014
    Publication date: December 18, 2014
    Inventors: Matthew WEISS, Alessandro BOEZIO, Christiane BOEZIO, John R. BUTLER, Margaret Yuhua CHU-MOYER, Erin F. DIMAURO, Thomas DINEEN, Russell GRACEFFA, Angel GUZMAN-PEREZ, Hongbing HUANG, Charles KREIMAN, Daniel LA, Isaac E. MARX, Benjamin Charles MILGRIM, Hanh Nho NGUYEN, Emily PETERSON, Karina ROMERO, Brian SPARLING
  • Publication number: 20140371467
    Abstract: The present invention provides a compound of Formula (I) or a pharmaceutically acceptable salt thereof wherein R1, R2, R3, A1, A2, A3, A4, L, B1, B2, B3 and B4 are as defined herein. The compounds of Formula I have been found to act as glucagon antagonists or inverse agonists. Consequently, the compounds of Formula I and the pharmaceutical compositions thereof are useful for the treatment of diseases, disorders, or conditions mediated by glucagon.
    Type: Application
    Filed: August 28, 2014
    Publication date: December 18, 2014
    Applicant: Pfizer Inc.
    Inventors: Gary Erik Aspnes, Mary Theresa Didiuk, Kevin James Filipski, Angel Guzman-Perez, Esther Cheng Yin Lee, Jeffrey Allen Pfefferkorn, Benjamin Dawson Stevens, Meihua Mike Tu
  • Publication number: 20140329862
    Abstract: The present invention provides a compound of Formula (I) or a pharmaceutically acceptable salt thereof wherein R1, R2, R3, A1, A2, A3, A4, L, B1, B2, B3 and B4 are as defined herein. The compounds of Formula I have been found to act as glucagon antagonists or inverse agonists. Consequently, the compounds of Formula I and the pharmaceutical compositions thereof are useful for the treatment of diseases, disorders, or conditions mediated by glucagon.
    Type: Application
    Filed: July 18, 2014
    Publication date: November 6, 2014
    Applicant: Pfizer Inc.
    Inventors: Gary Erik Aspnes, Mary Theresa Didiuk, Kevin James Filipski, Angel Guzman-Perez, Jeffrey Allen Pfefferkorn, Benjamin Dawson Stevens, Meihua Mike Tu
  • Patent number: 8859591
    Abstract: The present invention provides a compound of Formula (I) or a pharmaceutically acceptable salt thereof wherein R1, R2, R3, A1, A2, A3, A4, L, B1, B2, B3 and B4 are as defined herein. The compounds of Formula I have been found to act as glucagon antagonists or inverse agonists. Consequently, the compounds of Formula I and the pharmaceutical compositions thereof are useful for the treatment of diseases, disorders, or conditions mediated by glucagon.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: October 14, 2014
    Assignee: Pfizer Inc.
    Inventors: Gary Erik Aspnes, Mary Theresa Didiuk, Kevin James Filipski, Angel Guzman-Perez, Esther Cheng Yin Lee, Jeffrey Allen Pfefferkorn, Benjamin Dawson Stevens, Meihua Mike Tu
  • Publication number: 20140275058
    Abstract: The present invention provides a new class of compounds useful for the modulation of beta-secretase enzyme (BACE) activity. The compounds have a general Formula I: wherein variables A4, A5, A6, A8, each of Ra, Rb, R1, R2, R3 and R7 of Formula I, independently, are defined herein. The invention also provides pharmaceutical compositions comprising the compounds, and uses of the compounds and compositions for treatment of disorders and/or conditions related to A-beta plaque formation and deposition, resulting from the biological activity of BACE. Such BACE mediated disorders include, for example, Alzheimer's Disease, cognitive deficits, cognitive impairments, schizophrenia and other central nervous system conditions. The invention further provides compounds of Formulas II and III, and sub-formula embodiments thereof, intermediates and methods for preparing compounds of the invention.
    Type: Application
    Filed: March 6, 2014
    Publication date: September 18, 2014
    Inventors: Ana Elena MINATTI, Jonathan D. LOW, Jennifer R. ALLEN, Albert AMEGADZIE, James BROWN, Michael J. FROHN, Angel GUZMAN-PEREZ, Paul E. HARRINGTON, Patricia LOPEZ, Vu Van MA, Nobuko NISHIMURA, Wenyuan QIAN, Shannon RUMFELT, Robert M. RZASA, Kelvin SHAM, Adrian L. SMITH, Ryan WHITE, Qiufen XUE
  • Patent number: 8809342
    Abstract: The present invention provides a compound of Formula (I) or a pharmaceutically acceptable salt thereof wherein R1, R2, R3, A1, A2, A3, A4, L, B1, B2, B3 and B4 are as defined herein. The compounds of Formula I have been found to act as glucagon antagonists or inverse agonists. Consequently, the compounds of Formula I and the pharmaceutical compositions thereof are useful for the treatment of diseases, disorders, or conditions mediated by glucagon.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: August 19, 2014
    Assignee: Pfizer Inc.
    Inventors: Gary Erik Aspnes, Mary Theresa Didiuk, Kevin James Filipski, Angel Guzman-Perez, Jeffrey Allen Pfefferkorn, Benjamin Dawson Stevens, Meihua Mike Tu
  • Publication number: 20140135338
    Abstract: The present invention provides a compound of Formula I or a pharmaceutically acceptable salt thereof, wherein R1, R2, R3, A1, A2, A3, B1, B2, B3 and B4 are as defined herein. The compounds of Formula I have been found to act as glucagon antagonists or inverse agonists. Consequently, the compounds of Formula I and the pharmaceutical compositions thereof are useful for the treatment of diseases, disorders, or conditions mediated by glucagon.
    Type: Application
    Filed: July 12, 2012
    Publication date: May 15, 2014
    Applicant: PFIZER INC.
    Inventors: Mary Didiuk, Kevin J. Filipski, Angel Guzman-Perez, Esther C. Lee, Jeffrey A. Pfefferkorn, Benjamin Stevens, Meihua Tu
  • Publication number: 20140107109
    Abstract: The present invention provides a new class of compounds useful for the modulation of beta-secretase enzyme (BACE) activity. The compounds have a general Formula I: wherein variables A4, A5, A6, A8, R1, R2, R3, R7 and n of Formula I, independently, are defined herein. The invention also provides pharmaceutical compositions comprising the compounds, and corresponding uses of the compounds and compositions for treatment of disorders and/or conditions related to A-beta plaque formation and deposition, resulting from the biological activity of BACE. Such BACE mediated disorders include, for example, Alzheimer's Disease, cognitive deficits, cognitive impairments, schizophrenia and other central nervous system conditions. The invention further provides compounds of Formula II and sub-formula embodiments thereof, intermediates and processes and methods useful for the preparation of compounds of Formulas I-II.
    Type: Application
    Filed: December 18, 2013
    Publication date: April 17, 2014
    Inventors: Richard T. LEWIS, Jennifer R. ALLEN, Yuan CHENG, Deborah CHOQUETTE, Oleg EPSTEIN, Angel GUZMAN-PEREZ, Paul E. HARRINGTON, Zihao HUA, Randall W. HUNGATE, Jason Brooks HUMAN, Ted JUDD, Qingyian LIU, Patricia LOPEZ, Ana Elena MINATTI, Philip OLIVIERI, Karina ROMERO, Shannon RUMFELT, Robert M. RZASA, Laurie SCHENKEL, John STELLWAGEN, Ryan WHITE, Qiufen XUE, Xiao ZHENG, Wenge ZHONG
  • Publication number: 20130296355
    Abstract: The present invention provides a compound of Formula (I) or a pharmaceutically acceptable salt thereof wherein R1, R2, R3, A1, A2, A3, A4, L, B1, B2, B3 and B4 are as defined herein. The compounds of Formula I have been found to act as glucagon antagonists or inverse agonists. Consequently, the compounds of Formula I and the pharmaceutical compositions thereof are useful for the treatment of diseases, disorders, or conditions mediated by glucagon.
    Type: Application
    Filed: July 3, 2013
    Publication date: November 7, 2013
    Inventors: Gary Erik Aspnes, Mary Theresa Didiuk, Kevin James Filipski, Angel Guzman-Perez, Esther Cheng Yin Lee, Jeffrey Allen Pfefferkorn, Benjamin Dawson Stevens, Meihua Mike Tu
  • Patent number: 8507533
    Abstract: The present invention provides a compound of Formula (I) or a pharmaceutically acceptable salt thereof wherein R1, R2, R3, A1, A2, A3, A4, L, B1, B2, B3 and B4 are as defined herein. The compounds of Formula I have been found to act as glucagon antagonists or inverse agonists. Consequently, the compounds of Formula I and the pharmaceutical compositions thereof are useful for the treatment of diseases, disorders, or conditions mediated by glucagon.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: August 13, 2013
    Assignee: Pfizer Inc.
    Inventors: Gary Erik Aspnes, Mary Theresa Didiuk, Kevin James Filipski, Angel Guzman-Perez, Esther Cheng Yin Lee, Jeffrey Allen Pfefferkorn, Benjamin Dawson Stevens, Meihua Mike Tu
  • Publication number: 20120202834
    Abstract: The present invention provides a compound of Formula (I) or a pharmaceutically acceptable salt thereof wherein R1, R2, R3, A1, A2, A3, A4, L, B1, B2, B3 and B4 are as defined herein. The compounds of Formula I have been found to act as glucagon antagonists or inverse agonists. Consequently, the compounds of Formula I and the pharmaceutical compositions thereof are useful for the treatment of diseases, disorders, or conditions mediated by glucagon.
    Type: Application
    Filed: February 7, 2012
    Publication date: August 9, 2012
    Applicant: PFIZER INC.
    Inventors: Gary Erik Aspnes, Mary Theresa Didiuk, Kevin James Filipski, Angel Guzman-Perez, Esther Cheng Yin Lee, Jeffrey Allen Pfefferkorn, Benjamin Dawson Stevens, Meihua Mike Tu
  • Publication number: 20120165343
    Abstract: The present invention provides a compound of Formula (I) or a pharmaceutically acceptable salt thereof wherein R1, R2, R3, A1, A2, A3, A4, L, B1, B2, B3 and B4 are as defined herein. The compounds of Formula I have been found to act as glucagon antagonists or inverse agonists. Consequently, the compounds of Formula I and the pharmaceutical compositions thereof are useful for the treatment of diseases, disorders, or conditions mediated by glucagon.
    Type: Application
    Filed: December 22, 2011
    Publication date: June 28, 2012
    Applicant: Pfizer Inc.
    Inventors: Gary Erik Aspnes, Mary Theresa Didiuk, Kevin James Filipski, Angel Guzman-Perez, Jeffrey Allen Pfefferkorn, Benjamin Dawson Stevens, Meihua Mike Tu
  • Publication number: 20110319379
    Abstract: The present invention provides a compound of Formula (I) or a pharmaceutically acceptable salt thereof wherein R1, R4, R6, X, Y and Z are as defined herein. The compounds of Formula (I) have been found to act as glucokinase activators. Consequently, the compounds of Formula (I) and the pharmaceutical compositions thereof are useful for the treatment of diseases, disorders, or conditions mediated by glucokinase.
    Type: Application
    Filed: March 4, 2010
    Publication date: December 29, 2011
    Inventors: Jeffrey W. Corbett, Angel Guzman-Perez, Jeffrey A. Pfefferkorn, Meihua Tu
  • Publication number: 20110028452
    Abstract: The present invention is directed to novel pyrido[4,3-d]pyrimidin-4(3H)-one derivatives and pharmaceutically acceptable salts thereof of structural formula I wherein the variables R1, R2, R3, R4 and R5 are as described herein. Also provided are pharmaceutical compositions comprising the compounds of formula I as well as methods of treatment employing compounds of formula I to treat a disease or disorder characterized by abnormal bone or mineral homeostasis such as hypoparathyroidism, osteoporosis, osteopenia, periodontal disease, Paget's disease, bone fracture, osteoarthritis, rheumatoid arthritis, and humoral hypercalcemia of malignancy.
    Type: Application
    Filed: September 30, 2010
    Publication date: February 3, 2011
    Inventors: Mary T. Didiuk, Kevin K. Liu, David A. Griffith, Angel Guzman-Perez, Feng C. Bi, Daniel P. Walker
  • Patent number: 7829572
    Abstract: The present invention is directed to novel pyrido[4,3-d]pyrimidin-4(3H)-one derivatives and pharmaceutically acceptable salts thereof of structural formula I wherein the variables R1, R2, R3, R4 and R5 are as described herein. Also provided are pharmaceutical compositions comprising the compounds of formula I as well as methods of treatment employing compounds of formula I to treat a disease or disorder characterized by abnormal bone or mineral homeostasis such as hypoparathyroidism, osteoporosis, osteopenia, periodontal disease, Paget's disease, bone fracture, osteoarthritis, rheumatoid arthritis, and humoral hypercalcemia of malignancy.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: November 9, 2010
    Assignee: Pfizer Inc
    Inventors: Mary T. Didiuk, Kevin K. Liu, David A. Griffith, Angel Guzman-Perez, Feng C. Bi, Daniel P. Walker
  • Publication number: 20090118316
    Abstract: The present invention relates to methods of stimulating osteoblast function with a PYK2 inhibitor in subjects with osteoporosis, bone fractures, non-unions, pseudoarthroses, periodontal disease or other disorders of bone metabolism. Optionally, the method further comprises administration of a second therapeutic bone agent. The present invention also relates to methods to identify a PYK2 inhibitor effective as a therapeutic bone agent comprising administering a test agent to an osteoblast-like cell and determining if osteoblast function is stimulated. Optionally, the identifying method further comprises contacting the test agent with PYK2 and determining if PYK2 activity is inhibited.
    Type: Application
    Filed: June 10, 2005
    Publication date: May 7, 2009
    Inventors: Lisa M. Olson, Thomas A. Brown, Leonard Buckbinder, Angel Guzman-Perez, John C. Kath, Hua Zhu Ke, Michael J. Luzzio
  • Publication number: 20080085887
    Abstract: The present invention is directed to novel pyrido[4,3-d]pyrimidin-4(3H)-one derivatives and pharmaceutically acceptable salts thereof of structural formula I wherein the variables R1, R2, R3, R4 and R5 are as described herein. Also provided are pharmaceutical compositions comprising the compounds of formula I as well as methods of treatment employing compounds of formula I to treat a disease or disorder characterized by abnormal bone or mineral homeostasis such as hypoparathyroidism, osteoporosis, osteopenia, periodontal disease, Paget's disease, bone fracture, osteoarthritis, rheumatoid arthritis, and humoral hypercalcemia of malignancy.
    Type: Application
    Filed: October 4, 2007
    Publication date: April 10, 2008
    Inventors: Mary Didiuk, Kevin Liu, David Griffith, Angel Guzman-Perez, Feng Bi, Daniel Walker
  • Patent number: 6974813
    Abstract: NHE-1 inhibitors, methods of using such NHE-1 inhibitors and pharmaceutical compositions containing such NHE-1 inhibitors. The NHE-1 inhibitors are useful for the reduction of tissue damage resulting from tissue ischemia.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: December 13, 2005
    Assignee: Warner-Lambert Company
    Inventors: Ernest S. Hamanaka, Angel Guzman-Perez, Christian J. Mularski, Roger B. Ruggeri, Ronald T. Wester
  • Patent number: 6894050
    Abstract: Compounds of Formula (IA) that act as 5-HT receptor ligands and their uses in the treatment of diseases linked to the activation of 5-HT2 receptors in animals are described herein
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: May 17, 2005
    Assignee: Pfizer Inc.
    Inventors: Phoebe Chiang, William A. Novomisle, Willard M. Welch, Jr., Angel Guzman-Perez, Paul A. DaSilva-Jardine, Ravi S. Garigipati, Kevin K. Liu
  • Publication number: 20050090503
    Abstract: Compounds of Formula (IA) that act as 5-HT receptor ligands and their uses in the treatment of diseases linked to the activation of 5-HT2 receptors in animals are described herein.
    Type: Application
    Filed: August 19, 2004
    Publication date: April 28, 2005
    Inventors: Phoebe Chiang, William Novomisle, Willard Welch, Angel Guzman-Perez, Paul DaSilva-Jardine, Ravi Garigipati, Kevin Liu