Patents by Inventor Laykea Tafesse

Laykea Tafesse 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: 9975854
    Abstract: The invention provides compounds as represented by Formula I or I? and pharmaceutically acceptable salts, solvates, and diastereomers thereof: Wherein R1, R2, R2a, R3, and R4 are defined in the disclosure. The invention also provides compounds of Formulae II, III, and A-H, and pharmaceutically acceptable salts, solvates, and diastereomers thereof. In certain embodiments, Compounds of the Invention are useful for treating pain, constipation, and other conditions as delineated in the disclosure. Without wishing to be bound by any theory, it is believed that Compounds of the Invention are effective in treating conditions that are modulated by activity of opioid and/or ORL-1 receptors.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: May 22, 2018
    Assignee: Purdue Pharma L.P.
    Inventors: Laykea Tafesse, Jiangchao Yao, Jianming Yu, R. Richard Goehring
  • Patent number: 9975858
    Abstract: The invention provides compounds that are useful as sodium channel blockers. In one aspect, the invention provides compounds of Formula I: and pharmaceutically acceptable salts, solvates, hydrates, or diastereomers thereof, wherein W1, W2, W3, W4, U, G, m, R1, and R2 are defined in the disclosure. In certain embodiments, the invention provides compounds of Formulae II to V as set forth supra. The invention also provides the use of compounds of any of the above discussed formulae to treat a disorder responsive to blockade of sodium channels. In one embodiment, Compounds of the Invention are useful for treating pain.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: May 22, 2018
    Assignee: Purdue Pharma L.P.
    Inventors: Laykea Tafesse, Jiangchao Yao, Xiaoming Zhou
  • Publication number: 20180134707
    Abstract: The invention provides azaspiro[4.5]decane derivatives of Formula (A): and pharmaceutically acceptable salts, solvates, hydrates, N-oxides, and diastereomers thereof, wherein A1, X, A2, Rr, R2?, W1, W2, R3?, R4?, a, and b are defined in the disclosure. The invention also provides compounds of Formulae I, and B-G, and pharmaceutically acceptable salts, solvates, hydrates, N-oxides, and diastereomers thereof. Further, the invention provides use of the compounds of Formulae A-G and I, and the pharmaceutically acceptable salts, solvates, hydrates, N-oxides, and diastereomers thereof, to treat pain. In certain embodiments, Compounds of the Disclosure are useful for treating a disorder responsive to blockade of one or more sodium channels.
    Type: Application
    Filed: January 12, 2018
    Publication date: May 17, 2018
    Inventors: Mark A. Youngman, Laykea Tafesse, Jae Hyun Park
  • Publication number: 20180127374
    Abstract: The present invention is directed to Benzomorphan Analog compounds of the Formula (I), Formula (IA), Formula (IB), Formula (IC), or Formula (ID) as shown below, wherein R1, R2a, R2b, R3, R4, Z, and G are as defined herein. Compounds of the Invention are useful for treating pain, constipation, and other conditions modulated by activity of opioid and ORL-1 receptors.
    Type: Application
    Filed: September 13, 2017
    Publication date: May 10, 2018
    Inventors: Jae Hyun Park, David Rosen, Laykea Tafesse, Jianming Yu
  • Patent number: 9963458
    Abstract: The disclosure relates to indole-type piperidine compounds, indoline-type piperidine compounds and related piperidine-type bicyclic compounds containing a five-membered nitrogen-containing ring (e.g., pyrrole or dihydropyrrole) fused to a heteroaryl ring, compositions comprising an effective amount of such compounds, and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of an indole-type piperidine compound, indoline-type piperidine compound or related piperidine-type bicyclic compound containing a five-membered nitrogen-containing ring (e.g., pyrrole or dihydropyrrole) fused to a heteroaryl ring.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: May 8, 2018
    Assignee: Purdue Pharma L.P.
    Inventor: Laykea Tafesse
  • Publication number: 20180111934
    Abstract: The application is directed to compounds of Formula (I) and pharmaceutically acceptable salts and solvates thereof, wherein R1, R2, R3, R4, and Z are defined as set forth in the specification. In certain embodiments, the invention is also directed to compounds of Formula II-VII and the pharmaceutically acceptable salts and solvates thereof. The invention is also directed to use of compounds of Formula I to VII, 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. Certain compounds of the invention are especially useful for treating pain.
    Type: Application
    Filed: June 12, 2015
    Publication date: April 26, 2018
    Inventors: Laykea Tafesse, Mark A. Youngman
  • Publication number: 20180079726
    Abstract: The invention provides compounds that are useful as sodium channel blockers. In one aspect, the invention provides compounds of Formula I: and pharmaceutically acceptable salts, solvates, hydrates, or diastereomers thereof, wherein W1, W2, W3, W4, U, G, m, R1, and R2 are defined in the disclosure. In certain embodiments, the invention provides compounds of Formulae II to V as set forth supra. The invention also provides the use of compounds of any of the above discussed formulae to treat a disorder responsive to blockade of sodium channels. In one embodiment, Compounds of the Invention are useful for treating pain.
    Type: Application
    Filed: November 21, 2017
    Publication date: March 22, 2018
    Inventors: Laykea Tafesse, Jiangchao Yao, Xiaoming Zhou
  • Patent number: 9884865
    Abstract: The invention provides azaspiro[4.5]decane derivatives of Formula (A): and pharmaceutically acceptable salts, solvates, hydrates, N-oxides, and diastereomers thereof, wherein A1, X, A2, Rr, R2?, W1, R3?, R4?, a, and b are defined in the disclosure. The invention also provides compounds of Formulae I, and B-G, and pharmaceutically acceptable salts, solvates, hydrates, N-oxides, and diastereomers thereof. Further, the invention provides use of the compounds of Formulae A-G and I, and the pharmaceutically acceptable salts, solvates, hydrates, N-oxides, and diastereomers thereof, to treat pain. In certain embodiments, Compounds of the Disclosure are useful for treating a disorder responsive to blockade of one or more sodium channels.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: February 6, 2018
    Assignee: Purdue Pharma L.P.
    Inventors: Mark A. Youngman, Laykea Tafesse, Jae Hyun Park
  • Patent number: 9878991
    Abstract: The invention relates to compounds of formula IA and pharmaceutically acceptable derivatives thereof, compositions comprising an effective amount of a compound of formula IA or a pharmaceutically acceptable derivative thereof, and methods for treating or preventing a condition such as pain, UI, an ulcer, IBD and IBS, comprising administering to an animal in need thereof an effective amount of a compound of formula IA or a pharmaceutically acceptable derivative thereof.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: January 30, 2018
    Assignee: Purdue Pharma L.P.
    Inventor: Laykea Tafesse
  • Publication number: 20180022699
    Abstract: The invention relates to aryl and heteroaryl substituted compounds of Formula (I), and pharmaceutically acceptable salts, prodrugs, or solvates thereof, wherein G, R1, and Z1-Z5 are defined as set forth in the specification. The invention 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 invention are especially useful for treating pain.
    Type: Application
    Filed: August 4, 2017
    Publication date: January 25, 2018
    Inventors: Donald J. Kyle, Chiyou Ni, Laykea Tafesse, Jiangchao Yao
  • Patent number: 9828348
    Abstract: The invention provides compounds that are useful as sodium channel blockers. In one aspect, the invention provides compounds of Formula I: and pharmaceutically acceptable salts, solvates, hydrates, or diastereomers thereof, wherein W1, W2, W3, W4, U, G, m, R1, and R2 are defined in the disclosure. In certain embodiments, the invention provides compounds of Formulae II to V as set forth supra. The invention also provides the use of compounds of any of the above discussed formulae to treat a disorder responsive to blockade of sodium channels. In one embodiment, Compounds of the Invention are useful for treating pain.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: November 28, 2017
    Assignee: Purdue Pharma L.P.
    Inventors: Laykea Tafesse, Jiangchao Yao, Xiaoming Zhou
  • Publication number: 20170298027
    Abstract: The present disclosure provides substituted pyrimidine compounds of Formula (I), and the pharmaceutically acceptable salts, prodrugs, and solvates thereof, wherein A1, X, A2, W1, W2, W3, E, Z, and R4 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: May 4, 2017
    Publication date: October 19, 2017
    Applicant: Purdue Pharma L.P.
    Inventors: Chiyou Ni, Laykea Tafesse, Jiangchao Yao, Mark A. Youngman, Minnie Park, Bin Shao
  • Publication number: 20170290816
    Abstract: In one aspect, the invention provides compounds of Formula (I) or (II): (I) or (II) and pharmaceutically acceptable salts and solvates thereof, wherein R1, R2a, R2b, R3, R4, Z and G are defined as set forth in the disclosure. The invention also provides compounds of Formulae A and B and pharmaceutically acceptable salts and solvates thereof. Other aspects of the invention include the use of compounds of Formulae I, II, A, and B, and pharmaceutically acceptable salts and solvates thereof for the treatment of disorders responsive to modulation of one or more opioid receptors. In certain embodiments, the Compounds of the Invention are useful for treating pain.
    Type: Application
    Filed: September 17, 2015
    Publication date: October 12, 2017
    Applicant: Purdue Pharma L.P.
    Inventors: Xiaoming Zhou, Laykea Tafesse, John J. Engel
  • Publication number: 20170283392
    Abstract: The present disclosure provides dibenzazepine derivatives having Formula I or I(A): and the pharmaceutically acceptable salts and solvates thereof, wherein R3a, R3b, R6, V1, V2, Z1, Z2, Z3, and G are defined as set forth in the specification. The present disclosure is also directed to the use of the compounds of Formula I or I(A), and the pharmaceutically acceptable salts or solvates thereof, to treat a disorder responsive to the blockade of one or more sodium channels. In one embodiment, the compounds of the present disclosure are useful for treating pain.
    Type: Application
    Filed: June 14, 2017
    Publication date: October 5, 2017
    Inventors: Stephen M. Lynch, Laykea Tafesse
  • Patent number: 9765029
    Abstract: The invention relates to substituted pyridine compounds of Formula I: (I) or a pharmaceutically acceptable salt, prodrug, or solvate thereof, wherein A1, X, A2, R1a, R1b, R1c, G, and z are defined as set forth in the specification. The invention 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 invention are especially useful for treating pain.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: September 19, 2017
    Assignee: Purdue Pharma L.P.
    Inventors: Don Kyle, Chiyou Ni, Minnie Park, Laykea Tafesse
  • Patent number: 9718780
    Abstract: The invention relates to substituted pyridine and pyrimidine compounds of Formula (I) and the pharmaceutically acceptable salts, prodrugs, and solvates thereof, wherein R1, R2a, R2b, A1, A2, X, and Z are defined as set forth in the specification. The invention 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 invention are especially useful for treating pain.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: August 1, 2017
    Inventors: Laykea Tafesse, Jiangchao Yao
  • Publication number: 20170210713
    Abstract: The present disclosure provides substituted pyrimidine carboxamides of Formula (I) and the pharmaceutically acceptable salts and solvates thereof wherein A1, X, A2, W1, W2, W3, E, Z, and R4 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: April 6, 2017
    Publication date: July 27, 2017
    Inventors: Jeffrey Lockman, Chiyou Ni, Jae Hyun Park, Minnie Park, Bin Shao, Laykea Tafesse, Jiangchao Yao, Mark A. Youngman
  • Publication number: 20170204113
    Abstract: The application is directed to compounds of Formula (I) and pharmaceutically acceptable salts and solvates thereof, wherein R1, R1a, R1b, R1c, X, Y, Z, G, O, W1 and W2 are defined as set forth in the specification. The invention is also directed to use of 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. Certain compounds of the present invention are especially useful for treating pain.
    Type: Application
    Filed: December 23, 2014
    Publication date: July 20, 2017
    Applicant: PURDUE PHARMA L.P.
    Inventor: Laykea TAFESSE
  • Publication number: 20170190702
    Abstract: In one aspect, the invention provides compounds of Formula I: (I) and pharmaceutically acceptable salts and solvates thereof, wherein R1, R2, R3, R4, R5, Y, Za are defined as set forth in the disclosure. The invention also provides compounds of any one of Formulae II to VII, IA to IC, and IIA to IIC, and pharmaceutically acceptable salts and solvates thereof. Other aspects of the invention include the use of compounds of Formulae I to VII, IA to IC, and IIA to IIC, and pharmaceutically acceptable salts and solvates thereof for the treatment of disorders responsive to modulation of one or more opioid receptors. In certain embodiments, the Compounds of the Invention are useful for treating pain.
    Type: Application
    Filed: May 26, 2015
    Publication date: July 6, 2017
    Inventors: Mark A. Youngman, Laykea Tafesse, R. Richard Goehring, Jianming Yu
  • Patent number: 9695144
    Abstract: The present disclosure provides dibenzazepine derivatives having Formula I or I(A): and the pharmaceutically acceptable salts and solvates thereof, wherein R3a, R3b, R6, V1, V2, Z1, Z2, Z3, and G are defined as set forth in the specification. The present disclosure is also directed to the use of the compounds of Formula I or I(A), and the pharmaceutically acceptable salts or solvates thereof, to treat a disorder responsive to the blockade of one or more sodium channels. In one embodiment, the compounds of the present disclosure are useful for treating pain.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: July 4, 2017
    Assignee: Purdue Pharma L.P.
    Inventors: Stephen M. Lynch, Laykea Tafesse