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).

  • Publication number: 20140142112
    Abstract: A compound of formula: wherein Ar1, A, R3, X, and m are as disclosed herein and Ar2 is a benzothiazolyl, benzooxazolyl, or benzoimidazolyl group or a pharmaceutically acceptable salt thereof (a “Benzoazolylpiperazine Compound”), compositions comprising a Benzoazolylpiperazine Compound, and methods for treating or preventing pain, UI, an ulcer, IBD, IBS, an addictive disorder, Parkinson's disease, parkinsonism, anxiety, epilepsy, stroke, a seizure, a pruritic condition, psychosis, a cognitive disorder, a memory deficit, restricted brain function, Huntington's chorea, amyotrophic lateral sclerosis, dementia, retinopathy, a muscle spasm, a migraine, vomiting, dyskinesia, or depression in an animal comprising administering to an animal in need thereof an effective amount of a Benzoazolylpiperazine Compound are disclosed.
    Type: Application
    Filed: December 6, 2013
    Publication date: May 22, 2014
    Applicant: Purdue Pharma L.P.
    Inventors: Qun SUN, Laykea Tafesse, Sam Victory
  • Publication number: 20140135351
    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; and related Formula I?, Formula IA?, Formula IB?, Formula IC?, or Formula ID?; Formula I, Formula IA, Formula IB, Formula IC, or Formula ID; wherein R1, R2a, R2b, R3 and R4 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: November 8, 2013
    Publication date: May 15, 2014
    Applicant: PURDUE PHARMA L.P.
    Inventors: Jeffrey LOCKMAN, Laykea TAFESSE, Jiangchao YAO, Jianming YU
  • 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: 8703962
    Abstract: The invention relates to compounds of formula I and pharmaceutically acceptable derivatives thereof, compositions comprising an effective amount of a compound of formula I 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 I or a pharmaceutically acceptable derivative thereof.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: April 22, 2014
    Assignee: Purdue Pharma L.P.
    Inventors: Donald J. Kyle, Laykea Tafesse
  • Patent number: 8680118
    Abstract: A compound of formula: wherein Ar1, Ar2, V, X, R3, R4, and m are as disclosed herein or a pharmaceutically acceptable salt thereof (a “Cyclo(hetero)alkenyl Compound”); compositions comprising an effective amount of a Cyclo(hetero)alkenyl Compound; and methods for treating or preventing, e.g., pain, UI, an ulcer, IBD, or IBS in an animal, comprising administering to an animal in need thereof an effective amount of a Cyclo(hetero)alkenyl Compound are disclosed herein.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: March 25, 2014
    Assignee: Purdue Pharma L.P.
    Inventors: Donald J. Kyle, Qun Sun, Laykea Tafesse
  • Publication number: 20140057931
    Abstract: The present invention is directed to Buprenorphine Analog compounds of the Formula (I), Formula (IA) or Formula (IB) shown below, wherein R1, R2, R8, R3a, R 3b, G, X, Z and Y 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 20, 2011
    Publication date: February 27, 2014
    Applicant: PURDUE PHARMA L.P.
    Inventors: Donald J. Kyle, Laykea Tafesse
  • Publication number: 20140045875
    Abstract: The invention relates to fused and spirocycle compounds of Formula (I), or a pharmaceutically acceptable salt, prodrug, or solvate thereof, wherein R1, R2, Q1-Q3, 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, prevent or ameliorate a disorder responsive to the blockade of calcium channels, and particularly N-type calcium channels. Compounds of the present invention are especially useful for treating pain.
    Type: Application
    Filed: July 29, 2013
    Publication date: February 13, 2014
    Applicant: Purdue Pharma L.P.
    Inventors: Zhengming CHEN, Laykea Tafesse, Jiangchao Yao, Khondaker Islam
  • Publication number: 20140005212
    Abstract: The invention relates to substituted pyridine compounds of Formula I: (I) and the pharmaceutically acceptable salts, prodrugs, and solvates thereof, wherein R1a, R1b, R2a, R2b, R2c, A1, A2, and X 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: December 21, 2011
    Publication date: January 2, 2014
    Applicant: Purdue Pharma L.P.
    Inventors: Chiyou Ni, Minnie Park, Bin Shao, Laykea Tafesse, Jiangchao Yao, Mark Youngman, Xiaoming Zhou
  • Publication number: 20130345211
    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: Application
    Filed: July 15, 2011
    Publication date: December 26, 2013
    Applicant: Purdue Pharma L.P.
    Inventors: Donald J. Kyle, Chiyou Ni, Minnie Park, Laykea Tafesse
  • Publication number: 20130338170
    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: Application
    Filed: March 28, 2013
    Publication date: December 19, 2013
    Applicant: Purdue Pharma L.P.
    Inventor: Laykea TAFESSE
  • Patent number: 8604037
    Abstract: A compound of formula: wherein Ar1, A, R3, x, and m are as disclosed herein and Ar2 is a benzothiazolyl, benzooxazolyl, or benzoimidazolyl group or a pharmaceutically acceptable salt thereof (a “Benzoazolylpiperazine Compound”), compositions comprising a Benzoazolylpiperazine Compound, and methods for treating or preventing pain, UI, an ulcer, IBD, IBS, an addictive disorder, Parkinson's disease, parkinsonism, anxiety, epilepsy, stroke, a seizure, a pruritic condition, psychosis, a cognitive disorder, a memory deficit, restricted brain function, Huntington's chorea, amyotrophic lateral sclerosis, dementia, retinopathy, a muscle spasm, a migraine, vomiting, dyskinesia, or depression in an animal comprising administering to an animal in need thereof an effective amount of a Benzoazolylpiperazine Compound are disclosed.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: December 10, 2013
    Assignee: Purdue Pharma, L.P.
    Inventors: Qun Sun, Laykea Tafesse, Sam Victory
  • Publication number: 20130303526
    Abstract: The invention relates to substituted pyridine compounds of Formula (I) and the pharmaceutically acceptable salts, prodrugs, and solvates thereof, wherein R1a, A1, A2, E, G, Z1, and Z2 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: September 16, 2011
    Publication date: November 14, 2013
    Applicant: Purdue Pharma L.P.
    Inventors: Chiyou NI, Bin Shao, Laykea Tafesse, Jiangchao Yao, Jianming Yu, Xiaoming Zhou
  • Publication number: 20130296281
    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: June 16, 2011
    Publication date: November 7, 2013
    Applicant: Purdue Pharma L.P.
    Inventors: Donald J. Kyle, Chiyou Ni, Laykea Tafesse, Jiangchao Yao
  • Patent number: 8575199
    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: February 14, 2012
    Date of Patent: November 5, 2013
    Assignee: Purdue Pharma L.P.
    Inventor: Laykea Tafesse
  • Publication number: 20130289044
    Abstract: The invention relates to aryl substituted quinazolines of Formula I, and pharmaceutically acceptable salts, prodrugs, or solvates thereof, wherein G, A, and R1-R4 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: October 5, 2011
    Publication date: October 31, 2013
    Applicant: Purdue Pharma L.P.
    Inventors: R. Richard Goehring, Laykea Tafesse, Jiangchao Yao
  • Patent number: 8546388
    Abstract: The invention relates to compounds of formulae I(a)-I(d): and pharmaceutically acceptable derivatives thereof, compositions comprising an effective amount of a compound of formulae I(a)-I(d) 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 formulae I(a)-I(d) or a pharmaceutically acceptable derivative thereof.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: October 1, 2013
    Assignee: Purdue Pharma L.P.
    Inventors: Donald J. Kyle, Laykea Tafesse
  • Patent number: 8546417
    Abstract: The invention relates to fused and spirocycle compounds of Formula I: or a pharmaceutically acceptable salt, prodrug, or solvate thereof, wherein R1, R2, Q1-Q3, 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, prevent or ameliorate a disorder responsive to the blockade of calcium channels, and particularly N-type calcium channels. Compounds of the present invention are especially useful for treating pain.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: October 1, 2013
    Assignee: Purdue Pharma L.P.
    Inventors: Zhengming Chen, Laykea Tafesse
  • Patent number: 8536177
    Abstract: A compound of formula: wherein Ar1, A, R3, x, and m are as disclosed herein and Ar2 is a benzothiazolyl, benzooxazolyl, or benzoimidazolyl group or a pharmaceutically acceptable salt thereof (a “Benzoazolylpiperazine Compound”), compositions comprising a Benzoazolylpiperazine Compound, and methods for treating or preventing pain, UI, an ulcer, IBD, IBS, an addictive disorder, Parkinson's disease, parkinsonism, anxiety, epilepsy, stroke, a seizure, a pruritic condition, psychosis, a cognitive disorder, a memory deficit, restricted brain function, Huntington's chorea, amyotrophic lateral sclerosis, dementia, retinopathy, a muscle spasm, a migraine, vomiting, dyskinesia, or depression in an animal comprising administering to an animal in need thereof an effective amount of a Benzoazolylpiperazine Compound are disclosed.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: September 17, 2013
    Assignee: Purdue Pharma L.P.
    Inventors: Qun Sun, Laykea Tafesse, Sam Victory
  • Patent number: 8476277
    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: April 25, 2008
    Date of Patent: July 2, 2013
    Assignee: Purdue Pharma L.P.
    Inventor: Laykea Tafesse
  • Patent number: 8389549
    Abstract: A compound of Formula: (I) or a pharmaceutically acceptable derivative thereof, where Ar1, Ar2, X, R3, and m are as disclosed herein. Compounds of Formulae (I)-(V) and pharmaceutically acceptable derivatives thereof; compositions comprising an effective amount of a compound of Formulae (I)-(V) or a pharmaceutically acceptable derivative thereof; and methods for treating or preventing pain, UI, an ulcer, IBD, or IBS in an animal comprising administering to an animal in need thereof an effective amount of a compound of Formulae (I)-(V) or a pharmaceutically acceptable derivative thereof are disclosed herein.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: March 5, 2013
    Assignee: Purdue Pharma L.P.
    Inventor: Laykea Tafesse