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: 7582635
    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: December 19, 2003
    Date of Patent: September 1, 2009
    Inventors: Qun Sun, Laykea Tafesse, Sam Victory
  • Publication number: 20090176796
    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: April 25, 2008
    Publication date: July 9, 2009
    Applicant: Purdue Pharma L. P.
    Inventor: Laykea Tafesse
  • Publication number: 20090170868
    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: April 25, 2008
    Publication date: July 2, 2009
    Applicant: Purdue Pharma L. P.
    Inventor: Laykea Tafesse
  • Publication number: 20090118319
    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: September 8, 2006
    Publication date: May 7, 2009
    Applicant: Euro-Celtique S.A.
    Inventors: Zhengming Chen, Laykea Tafesse, Jiangchao Yao, Khondaker Islam
  • Publication number: 20090105249
    Abstract: The invention relates to piperidinyl compounds of Formula (I): or a pharmaceutically acceptable salt, prodrug, or solvate thereof, wherein R1-R3 and Z are defined as set forth in the specification. The invention is also directed to an assay useful for identifying such compounds as N-type calcium channel modulators or blockers. The invention is also directed to the compounds of Formula (I) and compounds identified by the above assay, and the use of such compounds 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: October 14, 2005
    Publication date: April 23, 2009
    Applicant: Euro-Celtique S.A.
    Inventors: Elfrida R. Benjamin, Zhengming Chen, Deyou Sha, Laykea Tafesse, Samuel F. Victory, John W.F. Whitehead, Xiaoming Zhou
  • Publication number: 20080319020
    Abstract: 4-Oxadiazolyl-piperidine compounds of formula (I) and (II), their compositions and use for the treatment of pain and diarrhoea.
    Type: Application
    Filed: November 21, 2006
    Publication date: December 25, 2008
    Inventor: Laykea Tafesse
  • Publication number: 20080153835
    Abstract: A compound of formula: wherein A, Ar, R3, R6, and m are disclosed herein, or a pharmaceutically acceptable salt thereof (a “Cyanoiminopiperazine Compound”), compositions comprising an effective amount of a Cyanoiminopiperazine Compound, and methods for treating or preventing pain, urinary incontinence, an ulcer, inflammatory-bowel disease, irritable-bowel syndrome, 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 Cyanoiminopiperazine Compound are disclosed.
    Type: Application
    Filed: September 4, 2007
    Publication date: June 26, 2008
    Inventors: Donald J. Kyle, Qun Sun, Laykea Tafesse, Chongwu Zhang, Xiaoming Zhou
  • Patent number: 7279493
    Abstract: A compound of formula: wherein A, Ar, R3, R6, and m are disclosed herein, or a pharmaceutically acceptable salt thereof (a “Cyanoiminopiperazine Compound”), compositions comprising an effective amount of a Cyanoiminopiperazine Compound, and methods for treating or preventing pain, urinary incontinence, an ulcer, inflammatory-bowel disease, irritable-bowel syndrome, 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 Cyanoiminopiperazine Compound are disclosed.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: October 9, 2007
    Assignee: Euro-Celtique S.A.
    Inventors: Donald J. Kyle, Qun Sun, Laykea Tafesse, Chongwu Zhang, Xiaoming Zhou
  • Publication number: 20070032500
    Abstract: Compounds of formulae: where Ar1, Ar2, R3, R4, and m are disclosed herein, or a pharmaceutically acceptable salt thereof (a “Nitro(cyano)vinylpiperazine Compound”); compositions comprising an effective amount of a Nitro(cyano)vinylpiperazine Compound; and methods for treating or preventing pain and other conditions in an animal comprising administering to an animal in need thereof an effective amount of a Nitro(cyano)vinylpiperazine Compound are disclosed.
    Type: Application
    Filed: June 28, 2006
    Publication date: February 8, 2007
    Inventors: Qun Sun, Laykea Tafesse
  • Publication number: 20070027159
    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: Application
    Filed: June 14, 2004
    Publication date: February 1, 2007
    Inventors: Donald Kyle, Qun Sun, Laykea Tafesse
  • Patent number: 6864261
    Abstract: A compound of formula (wherein A, R1, R2, R6, m and n are disclosed herein) or a pharmaceutically acceptable salt thereof (a “Piperazine Compound”); pharmaceutical compositions comprising a Piperazine Compound; and methods for treating pain, urinary incontinence (UI), 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 (ALS), dementia, retinopathy, a muscle spasm, a migraine, vomiting, dyskinesia and depression in an animal comprising administering to an animal in need thereof an effective amount of a Piperazine Compound are disclosed.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: March 8, 2005
    Assignee: Euro-Celtique S.A.
    Inventors: Parviz Gharagozloo, Khondaker Islam, Donald J. Kyle, Qun Sun, Laykea Tafesse, John William Frank Whitehead, Ji Yang, Xiaoming Zhou
  • Publication number: 20040186111
    Abstract: A compound of formula: 1
    Type: Application
    Filed: December 19, 2003
    Publication date: September 23, 2004
    Inventors: Qun Sun, Laykea Tafesse, Sam Victory
  • Publication number: 20040127501
    Abstract: The invention provides a compound of formula: 1
    Type: Application
    Filed: September 23, 2003
    Publication date: July 1, 2004
    Inventors: Zhengming Chen, Laykea Tafesse
  • Publication number: 20040106625
    Abstract: A compound of formula: 1
    Type: Application
    Filed: June 27, 2003
    Publication date: June 3, 2004
    Inventors: Donald J. Kyle, Qun Sun, Laykea Tafesse, Chongwu Zhang, Xiaoming Zhou
  • Publication number: 20040053914
    Abstract: A compound of formula 1
    Type: Application
    Filed: May 2, 2003
    Publication date: March 18, 2004
    Inventors: Parviz Gharagozloo, Khondaker Islam, Donald J. Kyle, Qun Sun, Laykea Tafesse, John William Frank Whitehead, Ji Yang, Xiaoming Zhou