Patents by Inventor Dawit Tadesse

Dawit Tadesse 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: 10435406
    Abstract: The application provides compounds of Formula I and pharmaceutically acceptable salts and solvates thereof, wherein R1, R2, R3, R4, R5, dash line a, dash line b, W, Z, X, and m are defined as set forth in the specification. The invention is also directed to use of the compounds of Formula I and the pharmaceutically acceptable salts and solvates thereof to treat disorders responsive to the modulation of one or more opioid receptors, or as synthetic intermediates. In certain embodiments, the Compounds of the Invention are useful for treating pain.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: October 8, 2019
    Assignee: Purdue Pharma L.P.
    Inventors: Andrew Kassick, Dawit Tadesse, Laykea Tafesse
  • Patent number: 10118927
    Abstract: The disclosure relates to Substituted Piperidin-4-amino-Type Compounds of Formula (I) and pharmaceutically acceptable salts and solvates thereof wherein R1, R2, R3, Q1, Q2, E1, E2, A, B, D, W, Z, a, b, n, and x are as defined herein, compositions comprising an effective amount of a Substituted Piperidin-4-amino-Type Compound, and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of a Substituted Piperidin-4-amino-Type Compound.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: November 6, 2018
    Assignee: Purdue Pharma L.P.
    Inventors: Kevin Brown, Dawit Tadesse, Nobuyuki Tanaka, Naoki Tsuno, Xiaoming Zhou
  • Publication number: 20180265510
    Abstract: The application provides compounds of Formula I and pharmaceutically acceptable salts and solvates thereof, wherein R1, R2, R3, R4, R5, dash line a, dash line b, W, Z, X, and m are defined as set forth in the specification. The invention is also directed to use of the compounds of Formula I and the pharmaceutically acceptable salts and solvates thereof to treat disorders responsive to the modulation of one or more opioid receptors, or as synthetic intermediates. In certain embodiments, the Compounds of the Invention are useful for treating pain.
    Type: Application
    Filed: December 5, 2014
    Publication date: September 20, 2018
    Inventors: Andrew Kassick, Dawit Tadesse, Laykea Tafesse
  • Patent number: 10000475
    Abstract: The present disclosure provides substituted triazine carboxamides of Formula I: and the pharmaceutically acceptable salts and solvates thereof, wherein A1, X, A2, E, and Z are defined as set forth in the specification. The present disclosure is also directed to the use of compounds of Formula I to treat a disorder responsive to the blockade of sodium channels. Compounds of the present disclosure are especially useful for treating pain.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: June 19, 2018
    Assignee: Purdue Pharma L.P.
    Inventors: Dawit Tadesse, Jianming Yu
  • Patent number: 9951038
    Abstract: The present disclosure relates to Quinazolin-4(3H)-one-Type Piperidine Compounds, such as those of Formule (I) and the pharmaceutically acceptable salts and solvates thereof, wherein R1, R2, R3, Q, Y1, Z, A, B, E, and a are as defined herein; compositions comprising an effective amount of a Quinazolin-4(3H)-one-Type Piperidine Compound, and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of a Quinazolin-4(3H)-one-Type Piperidine Compound.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: April 24, 2018
    Assignee: Purdue Pharma L.P.
    Inventor: Dawit Tadesse
  • Patent number: 9598447
    Abstract: The disclosure relates to Phosphorus-Substituted Quinoxaline-Type Piperidine Compounds of Formula (I): and pharmaceutically acceptable derivatives thereof wherein the dashed line, A, B, Q, R1, R2, R3, R4, Y1, Z, and a are as defined herein, compositions comprising an effective amount of a Phosphorus-Substituted Quinoxaline-Type Piperidine Compound, and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of a Phosphorus-Substituted Quinoxaline-Type Piperidine Compound.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: March 21, 2017
    Assignee: Purdue Pharma L.P.
    Inventors: Dawit Tadesse, Laykea Tafesse, Xiaoming Zhou
  • Publication number: 20160272640
    Abstract: The disclosure relates to Substituted Piperidin-4-amino-Type Compounds of Formula (I) and pharmaceutically acceptable salts and solvates thereof wherein R1, R2, R3, Q1, Q2, E1, E2, A, B, D, W, Z, a, b, n, and x are as defined herein, compositions comprising an effective amount of a Substituted Piperidin-4-amino-Type Compound, and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of a Substituted Piperidin-4-amino-Type Compound.
    Type: Application
    Filed: December 23, 2013
    Publication date: September 22, 2016
    Applicant: Shionogi & Co., Ltd.
    Inventors: Kevin Brown, Dawit Tadesse, Nobuyuki Tanaka, Naoki Tsuno, Xiaoming Zhou
  • Publication number: 20160002203
    Abstract: The present disclosure relates to Quinazolin-4(3H)-one-Type Piperidine Compounds, such as those of Formula (I) and the pharmaceutically acceptable salts and solvates thereof, wherein R1, R2, R3, Q, Y1, Z, A, B, E, and a are as defined herein; compositions comprising an effective amount of a Quinazolin-4(3H)-one-Type Piperidine Compound, and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of a Quinazolin-4(3H)-one-Type Piperidine Compound.
    Type: Application
    Filed: December 23, 2013
    Publication date: January 7, 2016
    Inventor: Dawit Tadesse
  • Publication number: 20150353512
    Abstract: The present disclosure provides substituted triazine carboxamides of Formula I: and the pharmaceutically acceptable salts and solvates thereof, wherein A1, X, A2, E, and Z are defined as set forth in the specification. The present disclosure is also directed to the use of compounds of Formula I to treat a disorder responsive to the blockade of sodium channels. Compounds of the present disclosure are especially useful for treating pain.
    Type: Application
    Filed: August 14, 2015
    Publication date: December 10, 2015
    Inventors: Dawit Tadesse, Jianming Yu
  • Patent number: 9120786
    Abstract: The present disclosure provides substituted triazine carboxamides of Formula I: and the pharmaceutically acceptable salts and solvates thereof, wherein A1, X, A2, E, and Z are defined as set forth in the specification. The present disclosure is also directed to the use of compounds of Formula I to treat a disorder responsive to the blockade of sodium channels. Compounds of the present disclosure are especially useful for treating pain.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: September 1, 2015
    Assignee: Purdue Pharma, L.P.
    Inventors: Dawit Tadesse, Jianming Yu
  • Patent number: 8829036
    Abstract: Disclosed are compounds of the formula I or a stereoisomer, tautomer, or pharmaceutically acceptable salt or solvate thereof, wherein each variable in Formula 1 are as defined in the specification; and pharmaceutical compositions comprising the compounds of formula I. Also disclosed are methods of inhibiting aspartyl protease, and in particular, the methods of treating cardiovascular diseases, cognitive and neurodegenerative diseases, and the methods of inhibiting of Human Immunodeficiency Virus, plasmepins, cathepsin D and protozoal enzymes. Also disclosed are methods of treating cognitive or neurodegenerative diseases using the compounds of formula I in combination with a cholinesterase inhibitor or a muscarinic m1 agonist or m2 antagonist.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: September 9, 2014
    Assignees: Merck Sharp & Dohme Corp., Pharmacopeia Inc.
    Inventors: Zhaoning Zhu, Brian McKittrick, Zhong-Yue Sun, Yuanzan C. Ye, Johannes H. Voight, Corey O. Strickland, Elizabeth M. Smith, Andrew W. Stamford, William J. Greenlee, Robert D. Mazzola, Jr., John P. Caldwell, Jared N. Cumming, Lingyan Wang, Yusheng Wu, Ulrich Iserloh, Xiaoiang Liu, Tao Guo, Thuy X. E. Le, Kurt W. Saionz, Suresh D. Babu, Rachael C. Hunter, Michelle L. Morris, Huizhong Gu, Gang Qian, Dawit Tadesse, Ying Huang, Guoqing Li, Jianping Pan, Jeffrey A. Misiaszek, Gaifa Lai, Jingqi Duo, Chuanxing Qu, Yuefei Shao
  • Publication number: 20140249128
    Abstract: The present disclosure provides substituted triazine carboxamides of Formula I: and the pharmaceutically acceptable salts and solvates thereof, wherein A1, X, A2, E, and Z are defined as set forth in the specification. The present disclosure is also directed to the use of compounds of Formula I to treat a disorder responsive to the blockade of sodium channels. Compounds of the present disclosure are especially useful for treating pain.
    Type: Application
    Filed: February 26, 2014
    Publication date: September 4, 2014
    Applicant: Purdue Pharma L.P.
    Inventors: Dawit Tadesse, Jianming Yu
  • Patent number: 8778980
    Abstract: Disclosed are compounds of the formula I or a stereoisomer, tautomer, or pharmaceutically acceptable salt or solvate thereof, wherein W is a bond, —C(?S)—, —S(O)—, —S(O)2—, —C(?O)—, —O—, —C(R6)(R7)—, —N(R5)— or —C(?N(R5))—; X is —O—, —N(R5)— or —C(R6)(R7)—; provided that when X is —O—, U is not —O—, —S(O)—, —S(O)2—, —C(?O)— or —C(?NR5)—; U is a bond, —S(O)—, —S(O)2—, —C(O)—, —O—, —P(O)(OR15)—, —C(?NR5)—, —(C(R6)(R7))b— or —N(R5)—; wherein b is 1 or 2; provided that when W is —S(O)—, —S(O)2—, —O—, or —N(R5)—, U is not —S(O)—, —S(O)2—, —O—, or —N(R5)—; provided that when X is —N(R5)— and W is —S(O)—, —S(O)2—, —O—, or —N(R5)—, then U is not a bond; and R1, R2, R3, R4, R5, R6, and R7 are as defined in the specification; and pharmaceutical compositions comprising the compounds of formula I.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: July 15, 2014
    Assignees: Merck Sharp & Dohme Corp., Pharmacopeia Drug Discovery, Inc.
    Inventors: Zhaoning Zhu, Brian A McKittrick, Zhong-Yue Sun, Yuanzan C Ye, Johannes H Voigt, Corey Strickland, Elizabeth M. Smith, Andrew Stamford, William J. Greenlee, Robert Mazzola, John Caldwell, Jared N. Cumming, Lingyan Wang, Yusheng Wu, Ulrich Iserloh, Tao Guo, Thuy X. H. Le, Kurt W. Saionz, Suresh D. Babu, Rachael C. Hunter, Michelle L. Morris, Huizhong Gu, Gang Qian, Dawit Tadesse
  • Publication number: 20140128346
    Abstract: The disclosure relates to Phosphorus-Substituted Quinoxaline-Type Piperidine Compounds of Formula (I): and pharmaceutically acceptable derivatives thereof wherein the dashed line, A, B, Q, R1, R2, R3, R4, Y1, Z, and a are as defined herein, compositions comprising an effective amount of a Phosphorus-Substituted Quinoxaline-Type Piperidine Compound, and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of a Phosphorus-Substituted Quinoxaline-Type Piperidine Compound.
    Type: Application
    Filed: December 21, 2011
    Publication date: May 8, 2014
    Applicant: PURDUE PHARMA L.P.
    Inventors: Dawit Tadesse, Laykea Tafesse, Zhou Xiaoming
  • Patent number: 8691831
    Abstract: Disclosed are compounds of the formula I or a stereoisomer, tautomer, or pharmaceutically acceptable salt or solvate thereof, wherein each variable in Formula I are as defined in the specification; and pharmaceutical compositions comprising the compounds of formula I. Also disclosed are methods of inhibiting aspartyl protease, and in particular, the methods of treating cardiovascular diseases, cognitive and neurodegenerative diseases, and the methods of inhibiting of Human Immunodeficiency Virus, plasmepins, cathepsin D and protozoal enzymes. Also disclosed are methods of treating cognitive or neurodegenerative diseases using the compounds of formula I in combination with a cholinesterase inhibitor or a muscarinic m1 agonist or m2 antagonist.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: April 8, 2014
    Assignees: Merck Sharp & Dohme Corp., Pharmacopeia Drug Discovery, Inc.
    Inventors: Zhaoning Zhu, Brian McKittrick, Zhong-Yue Sun, Yuanzan C. Ye, Johannes H. Voight, Corey O. Strickland, Elizabeth M. Smith, Andrew W. Stamford, William J. Greenlee, Robert D. Mazzola, Jr., John P. Caldwell, Jared N. Cumming, Lingyan Wang, Yusheng Wu, Ulrich Iserloh, Xiaoxiang Liu, Tao Guo, Thuy X. E. Le, Kurt W. Saionz, Suresh D. Babu, Rachael C. Hunter, Michelle L. Morris, Huizhong Gu, Gang Qian, Dawit Tadesse, Ying Huang, Guoqing Li, Jianping Pan, Jeffrey A. Misiaszek, Gaifa Lai, Jingqi Duo, Chuanxing Qu, Yuefei Shao
  • Patent number: 8691833
    Abstract: Disclosed are compounds of the formula I or a stereoisomer, tautomer, or pharmaceutically acceptable salt or solvate thereof, wherein each variable in Formula 1 are as defined in the specification; and pharmaceutical compositions comprising the compounds of formula I. Also disclosed are methods of inhibiting aspartyl protease, and in particular, the methods of treating cardiovascular diseases, cognitive and neurodegenerative diseases, and the methods of inhibiting of Human Immunodeficiency Virus, plasmepins, cathepsin D and protozoal enzymes. Also disclosed are methods of treating cognitive or neurodegenerative diseases using the compounds of formula I in combination with a cholinesterase inhibitor or a muscarinic m1 agonist or m2 antagonist.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: April 8, 2014
    Assignees: Merck Sharp & Dohme Corp., Pharmacopeia Inc.
    Inventors: Zhaoning Zhu, Brian McKittrick, Zhong-Yue Sun, Yuanzan C. Ye, Johannes H. Voight, Corey O. Strickland, Elizabeth M. Smith, Andrew W. Stamford, William J. Greenlee, Robert D. Mazzola, Jr., John P. Caldwell, Jared N. Cumming, Lingyan Wang, Yusheng Wu, Ulrich Iserloh, Xiaoiang Liu, Tao Guo, Thuy X.E. Le, Kurt W. Saionz, Suresh D. Babu, Rachael C. Hunter, Michelle L. Morris, Huizhong Gu, Gang Qian, Dawit Tadesse, Ying Huang, Guoqing Li, Jianping Pan, Jeffrey A. Misiaszek, Gaifa Lai, Jingqi Duo, Chuanxing Qu, Yuefei Shao
  • Publication number: 20130018066
    Abstract: Disclosed are compounds of the formula I or a stereoisomer, tautomer, or pharmaceutically acceptable salt or solvate thereof, wherein W is a bond, —C(?S)—, —S(O)—, —S(O)2—, —C(?O)—, —O—, —C(R6)(R7)—, —N(R5)— or —C(?N(R5))—; X is —O—, —N(R5)— or —C(R6)(R7)—; provided that when X is —O—, U is not —O—, —S(O)—, —S(O)2—, —C(?O)— or —C(?NR5)—; U is a bond, —S(O)—, —S(O)2—, —C(O)—, —O—, —P(O)(OR15)—, —C(?NR5)—, —(C(R6)(R7))b— or —N(R5)—; wherein b is 1 or 2; provided that when W is —S(O)—, —S(O)2—, —O—, or —N(R5)—, U is not —S(O)—, —S(O)2—, —O—, or —N(R5)—; provided that when X is —N(R5)— and W is —S(O)—, —S(O)2—, —O—, or —N(R5)—, then U is not a bond; and R1, R2, R3, R4, R5, R6, and R7 are as defined in the specification; and pharmaceutical compositions comprising the compounds of formula I.
    Type: Application
    Filed: July 17, 2012
    Publication date: January 17, 2013
    Applicant: Schering Corporation & Pharmacopeia Drug Discovery Inc.
    Inventors: Zhaoning Zhu, Brian A. McKittrick, Zhong-Yue Sun, Yuanzan C. Ye, Johannes H. Voigt, Corey Strickland, Elizabeth M. Smith, Andrew Stamford, William J. Greenlee, Robert Mazzola, John Caldwell, Jared N. Cumming, Lingyan Wang, Yusheng Wu, Ulrich Iserloh, Tao Guo, Thuy X.H. Le, Kurt W. Saionz, Suresh D. Babu, Rachael C. Hunter, Michelle L. Morris, Huizhong Gu, Gang Qian, Dawit Tadesse
  • Publication number: 20120276118
    Abstract: Disclosed are compounds of the formula I or a stereoisomer, tautomer, or pharmaceutically acceptable salt or solvate thereof, wherein each variable in Formula 1 are as defined in the specification; and pharmaceutical compositions comprising the compounds of formula I. Also disclosed are methods of inhibiting aspartyl protease, and in particular, the methods of treating cardiovascular diseases, cognitive and neurodegenerative diseases, and the methods of inhibiting of Human Immunodeficiency Virus, plasmepins, cathepsin D and protozoal enzymes. Also disclosed are methods of treating cognitive or neurodegenerative diseases using the compounds of formula I in combination with a cholinesterase inhibitor or a muscarinic m1 agonist or m2 antagonist.
    Type: Application
    Filed: March 14, 2012
    Publication date: November 1, 2012
    Applicants: Pharmacopeia Inc., Schering Corporation
    Inventors: Zhaoning Zhu, Brian McKittrick, Zhong-Yue Sun, Yuanzan C. Ye, Johannes H. Voight, Corey O. Strickland, Elizabeth M. Smith, Andrew Stamford, William J. Greenlee, Robert D. Mazzola, John P. Caldwell, Jared N. Cumming, Lingyan Wang, Yusheng Wu, Ulrich Iserloh, Xiaoxiang Liu, Tao Guo, Thuy X.E. Le, Kurt W. Saionz, Suresh D. Babu, Rachael C. Hunter, Michelle L. Morris, Huizhong Gu, Gang Qian, Dawit Tadesse, Ying Huang, Guoqing Li, Jianping Pan, Jeffrey A. Misiaszek, Gaifa Lai, Jingqi Duo, Chuanxing Qu, Yuefei Shao
  • Publication number: 20120231018
    Abstract: Disclosed are compounds of the formula I or a stereoisomer, tautomer, or pharmaceutically acceptable salt or solvate thereof, wherein each variable in Formula 1 are as defined in the specification; and pharmaceutical compositions comprising the compounds of formula I. Also disclosed are methods of inhibiting aspartyl protease, and in particular, the methods of treating cardiovascular diseases, cognitive and neurodegenerative diseases, and the methods of inhibiting of Human Immunodeficiency Virus, plasmepins, cathepsin D and protozoal enzymes. Also disclosed are methods of treating cognitive or neurodegenerative diseases using the compounds of formula I in combination with a cholinesterase inhibitor or a muscarinic m1 agonist or m2 antagonist.
    Type: Application
    Filed: March 9, 2012
    Publication date: September 13, 2012
    Applicants: Pharmacopeia Inc., Schering Corporation
    Inventors: Zhaoning Zhu, Brian McKittrick, Zhong-Yue Sun, Yuanzan C. Ye, Johannes H. Voigt, Corey O. Strickland, Elizabeth M. Smith, Andrew Stamford, William J. Greenlee, Robert D. Mozzola, John P. Caldwell, Jared N. Cumming, Lingyan Wang, Yusheng Wu, Ulrich Iserloh, Xiaoxiang Liu, Tao Guo, Thuy X. E. Le, Kurt W. Saionz, Suresh D. Babu, Rachael C. Hunter, Michelle L. Morris, Huizhong Gu, Gang Qian, Dawit Tadesse, Ying Huang, Guoqing Li, Jianping Pan, Jeffrey A. Misiaszek, Gaifa Lai, Jingqi Duo, Chuanxing Qu, Yuefei Shao
  • Publication number: 20120231017
    Abstract: Disclosed are compounds of the formula I or a stereoisomer, tautomer, or pharmaceutically acceptable salt or solvate thereof, wherein each variable in Formula 1 are as defined in the specification; and pharmaceutical compositions comprising the compounds of formula I. Also disclosed are methods of inhibiting aspartyl protease, and in particular, the methods of treating cardiovascular diseases, cognitive and neurodegenerative diseases, and the methods of inhibiting of Human Immunodeficiency Virus, plasmepins, cathepsin D and protozoal enzymes. Also disclosed are methods of treating cognitive or neurodegenerative diseases using the compounds of formula I in combination with a cholinesterase inhibitor or a muscarinic m1 agonist or m2 antagonist.
    Type: Application
    Filed: March 8, 2012
    Publication date: September 13, 2012
    Applicants: Pharmacopeia Inc., Schering Corporation
    Inventors: ZHAONING ZHU, Brian McKittrick, Zhong-Yue Sun, Yuanzan C. Ye, Johannes H. Voigt, Corey O. Strickland, Elizabeth M. Smith, Andrew Stamford, William J. Greenlee, Robert D. Mozzola, John P. Caldwell, Jared N. Cumming, Lingyan Wang, Yusheng Wu, Ulrich Iserloh, Xiaoiang Liu, Tao Guo, Thuy X. E. Le, Kurt W. Sainoz, Suresh D. Babu, Rachael C. Hunter, Michelle L. Morris, Huizhong Gu, Gang Qian, Dawit Tadesse, Ying Huang, Guoqing Li, Jianping Pan, Jeffrey A. Misiaszek, Gaifa Lai, Jingqi Duo, Chuanxing Qu, Yuefei Shao