Patents by Inventor Yao-Chang Xu

Yao-Chang Xu 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: 20030027831
    Abstract: A series of aryl piperazine compounds of the formula: 1
    Type: Application
    Filed: December 18, 2001
    Publication date: February 6, 2003
    Inventor: Yao-Chang Xu
  • Patent number: 6514976
    Abstract: Described herein is a compound of the formula wherein Ar′ is a mono or bicyclic aromatic or heteroaromatic radical substituted with one to three substituents selected from the group consisting of hydrogen, (C1-C6)alkyl, (C1-C6)alkoxy, (C1-C6)alkylthio, (C2-C6)alkenyl, (C2-C6)alkynyl, (C1-C6)alkylhalo, (C3-C8)cycloalkyl, (C3-C8)cycloalkenyl or halo; R1 is hydrogen, (C1-C6)alkyl, (C1-C6)alkoxy, (C1-C6)alkylthio; R2 is phenyl, naphthyl or (C3-C12)cycloalkyl substituted with one or two substituents selected from the group consisting of hydrogen (C1-C6)alkyl, (C1-C6)alkoxy, (C1-C6)alkylthio, (C2-C6)alkenyl, (C2-C6)alkynyl, (C1-C6)alkylhalo, (C3-C8)cycloalkyl, (C3-C8)cycloalkenyl or halo; R3 is selected from the group consisting of hydrogen, (C1-C6)alkyl, (C1-C6)alkoxy, (C1-C6)alkylthio, (C2-C6)alkenyl, (C2-C6)alkynyl, (C1-C6)alkylhalo, (C3-C8)cycloalkyl, (C3-C8)cycloalkenyl or halo; X is —(C═O)—; or a pharmaceutically acceptable salt racemate, optical isomer or solvat
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: February 4, 2003
    Assignee: Eli Lilly and Company
    Inventors: Daniel Timothy Kohlman, Yao-Chang Xu
  • Publication number: 20030008879
    Abstract: A series of aryl piperazine compounds are effective pharmaceuticals for the treatment of conditions related to or affected by the serotonin 1A receptor; the compounds are particularly effective antagonists at that receptor, and are particularly useful for alleviating the symptoms of nicotine and tobacco withdrawal.
    Type: Application
    Filed: April 30, 2002
    Publication date: January 9, 2003
    Inventors: Daniel Timothy Kohlman, Yao-Chang Xu
  • Publication number: 20020193590
    Abstract: The present invention provides compounds of formula I and a method of inhibiting the reuptake of serotonin, antagonizing the 5-HT1A receptor and antagonizing the 5-HT2A receptor which comprises administering to a subject in need of such treatment an effective amount of a compound of formula I.
    Type: Application
    Filed: May 8, 2002
    Publication date: December 19, 2002
    Inventors: Kenneth Lee Hauser, Larry Wayne Hertel, Yao-Chang Xu
  • Publication number: 20020169170
    Abstract: A method for potentiating the action of a serotonin reuptake inhibitor in increasing the availability of serotonin, norepinephrin and dopamine in the brain, comprising administering to a patient in need of such treatment a serotonin reuptake inhibitor in combination with an effective amount of a compound of the formula 1
    Type: Application
    Filed: December 18, 2001
    Publication date: November 14, 2002
    Inventors: Alexander Glenn Godfrey, Daniel Timothy Kohlman, John Cunningham O' Toole, Yao-Chang Xu, Tony Yantao Zhang
  • Patent number: 6465453
    Abstract: The present invention provides compounds of formula I and a method of inhibiting the reuptake of serotonin, antagonizing the 5-HT1A receptor and antagonizing the 5-HT2A receptor which comprises administering to a subject in need of such treatment an effective amount of a compound of formula I.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: October 15, 2002
    Assignee: Eli Lilly and Company
    Inventors: Kenneth Lee Hauser, Larry Wayne Hertel, Yao-Chang Xu
  • Patent number: 6436964
    Abstract: The present invention provides the compounds of the following formula: Wherein the variables are as defined in the specification and a method for inhibiting the reuptake of seretonin, antagonizing the 5-HT1A receptor and antagonizing the 5-HT2A receptor which comprises administering to a subject in need of such treatment an effective amount of the compound of above formula.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: August 20, 2002
    Assignee: Eli Lilly and Company
    Inventors: Larry Wayne Hertel, Daniel Timothy Kohlman, Sidney Xi Liang, David Taiwai Wong, Yao-Chang Xu
  • Publication number: 20020065312
    Abstract: A class of novel aminotetralins is disclosed useful as 5-HT1D&agr; agonists.
    Type: Application
    Filed: October 3, 2001
    Publication date: May 30, 2002
    Inventors: John M. Schaus, Clint D. Walker, Yao-Chang Xu
  • Patent number: 6358958
    Abstract: A series of aryl piperazine compounds are effective pharmaceuticals for the treatment of conditions related to or affected by the serotonin 1A receptor; the compounds are particularly effective antagonists at that receptor, and are particularly useful for alleviating the symptoms of nicotine and tobacco withdrawal.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: March 19, 2002
    Assignee: Eli Lilly and Company
    Inventors: Daniel Timothy Kohlman, Yao-Chang Xu
  • Patent number: 6355674
    Abstract: A class of novel aminotetralins is disclosed useful as 5-HT1D&agr; agonists.
    Type: Grant
    Filed: May 2, 2000
    Date of Patent: March 12, 2002
    Assignee: Eli Lilly and Company
    Inventors: John M Schaus, Clint D Walker, Yao-Chang Xu
  • Patent number: 6353008
    Abstract: The present invention provides the compounds of the following formula (I): and a method for inhibiting the reuptake of seretonin, antagonizing the 5-HT1A receptor and antagonizing the 5-HT2A receptor which comprises administering to a subject in need of such treatment an effective amount of formula (I).
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: March 5, 2002
    Assignee: Eli Lilly and Company
    Inventors: Larry Wayne Hertel, Yao-Chang Xu
  • Patent number: 6342498
    Abstract: Anylpiperazines of formula (1) useful as serotonin reuptake inhibitors and 5-HT1D&agr; receptor antagonists are disclosed herein: wherein R1 and R2 are each independently hydrogen, halo, —(C1-C6)alkyl or —(C1-C6)alkoxy; R3 is hydrogen or —(C1-C6)alkyl; Y is —CO— or —CH2—; Z is —NH—, —N(COR)— or —CH2— where R is —(C1-C6)alkyl or —(C3-C8)cycloalkyl; represents a double or single bond; n and m are an each independently integer from 1 to 3, both inclusive; or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: January 29, 2002
    Assignee: Eli Lilly and Company
    Inventors: Clint Duane Walker, David Taiwai Wong, Yao-Chang Xu
  • Publication number: 20010003749
    Abstract: A series of aryl piperazine compounds are effective pharmaceuticals for the treatment of conditions related to or affected by the serotonin 1A receptor; the compounds are particularly effective antagonists at that receptor, and are particularly useful for alleviating the symptoms of nicotine and tobacco withdrawal.
    Type: Application
    Filed: January 3, 2001
    Publication date: June 14, 2001
    Inventors: Alexander Glenn Godfrey, Daniel Timothy Kohlman, John Cunningham O'Toole, Yao-Chang Xu, Tony Yantao Zhang
  • Patent number: 6239135
    Abstract: A series of aryl piperazine compounds of the formula: or the pharmaceutically acceptable salts thereof, are effective pharmaceuticals for the treatment of conditions related to or affected by the serotonin 1A receptor; the compounds are particularly effective antagonists at that receptor, and are particularly useful for alleviating the symptoms of nicotine and tobacco withdrawal.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: May 29, 2001
    Assignee: Eli Lilly and Company
    Inventors: Daniel Timothy Kohlman, Yao-Chang Xu
  • Patent number: 6126932
    Abstract: This invention provides novel 5-HT.sub.1F agonists of Formula ##STR1## where X, R.sup.1, R.sup.2, and R.sup.3 are defined in the specification, which are useful for the treatment of migraine and associated disorders.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: October 3, 2000
    Assignee: Eli Lilly and Company
    Inventors: James E Fritz, Patric J Hahn, Stephen W Kaldor, Miles G Siegel, Yao-Chang Xu
  • Patent number: 6046215
    Abstract: This invention provides compounds and a method for the inhibition of serotonin reuptake in mammals.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: April 4, 2000
    Assignee: Eli Lilly and Company
    Inventors: James E. Audia, Daniel J. Koch, Thomas E. Mabry, Jeffrey S. Nissen, Vincent P. Rocco, Yao-Chang Xu
  • Patent number: 5998630
    Abstract: The present invention relates to compounds used for increasing activation of the 5-HT1F receptor.
    Type: Grant
    Filed: May 21, 1999
    Date of Patent: December 7, 1999
    Assignee: Eli Lilly and Company
    Inventors: James E Fritz, Patric J Hahn, Stephen W Kaldor, Miles G Siegel, Yao-Chang Xu
  • Patent number: 5942536
    Abstract: The invention provides novel 5-HT.sub.1f agonists of formula (I) where X, R.sup.1, R.sup.2, and R.sup.3 are defined in the specification, which are useful for the treatment of migraine and associate disorders.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: August 24, 1999
    Assignee: Eli Lilly and Company
    Inventors: James E Fritz, Patric J Hahn, Stephen W Kaldor, Miles G Siegel, Yao-Chang Xu
  • Patent number: 5846982
    Abstract: This invention provides compounds and a method for the inhibition of serotonin reuptake in mammals.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: December 8, 1998
    Assignee: Eli Lilly and Company
    Inventors: James E. Audia, Daniel J. Koch, Thomas E. Mabry, Jeffrey S. Nissen, Vincent P. Rocco, Yao-Chang Xu
  • Patent number: 5814653
    Abstract: This invention provides novel 6-substituted-1,2,3,4-tetrahydro-9H-carbazoles and 7-substituted-10H-cyclohepta?7,6-b!indoles. These compounds are 5-HT.sub.1F agonists which are useful for the treatment of migraine and associated disorders.
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: September 29, 1998
    Assignee: Eli Lilly and Company
    Inventors: Michael Edward Flaugh, Anton Daniel Kiefer, Jr., Clint Duane Walker, Yao-Chang Xu