Patents by Inventor Tao Xin

Tao Xin 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: 20070049578
    Abstract: The invention relates to compounds of formula I or pharmaceutically acceptable salts or solvates thereof: where R1, R2, R3, A, X, and n are defined in the description. The invention also includes pharmaceutical compositions and uses of, and processes of making the compounds, as well as methods of medical treatment of mGluR 5 mediated disorders.
    Type: Application
    Filed: August 14, 2006
    Publication date: March 1, 2007
    Applicants: AstraZeneca AB, NPS PHARMACEUTICALS
    Inventors: Louise Edwards, Methvin Isaac, Abdelmalik Slassi, Tao Xin, Peter Dove
  • Publication number: 20070037816
    Abstract: The invention relates to compounds of formula I or pharmaceutically acceptable salts or solvates thereof: where Ar1, A, Hy, R1, m and n are as defined in the description. The invention also includes pharmaceutical compositions and uses of, and processes of making the compounds, as well as methods of medical treatment of mGluR5-mediated disorders.
    Type: Application
    Filed: August 4, 2006
    Publication date: February 15, 2007
    Applicants: AstraZeneca AB, NPS Pharmaceuticals
    Inventors: Louise Edwards, Methvin Isaac, Abdelmalik Slassi, Guang-Ri Sun, Tao Xin, Alexander Minidis, Peter Dove
  • Patent number: 7112595
    Abstract: The present invention provides compounds and pharmaceutical compositions that act as antagonists at metabotropic glutamate receptors, and that are useful for treating neurological diseases and disorders. Methods of preparing the compounds also are disclosed.
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: September 26, 2006
    Assignees: NPS Pharmaceuticals, Inc., Astrazeneca AB
    Inventors: Bradford Van Wagenen, Thomas M. Stormann, Scott T Moe, Susan M Sheehan, Donald McLeod, Daryl L Smith, Methvin Isaac, Abdelmalik Slassi, Ian Egle, Louise Edwards, Tomislav Stefanac, Tao Xin, Jalaj Arora, William Michne
  • Publication number: 20060189661
    Abstract: The present invention provides compounds and pharmaceutical compositions that act as antagonists at metabotropic glutamate receptors, and that are useful for treating neurological diseases and disorders. Methods of preparing the compounds also are disclosed.
    Type: Application
    Filed: April 6, 2006
    Publication date: August 24, 2006
    Inventors: Bradford Wagenen, Thomas Stormann, Scott Moe, Susan Sheehan, Donald McLeod, Daryl Smith, Methvin Isaac, Abdelmalik Slassi, Ian Egle, Louise Edwards, Tomislav Stefanac, Tao Xin, Jalaj Arora, William Michne
  • Patent number: 7074809
    Abstract: The present invention relates to new compounds of formula I, wherein P, Q, X1, X2, X3, X4, X5, R, R1, R2, R3, R4, R5, G, M1, M2, M3, m and n, are defined as in formula I, a process for their preparation and new intermediates prepared therein, pharmaceutical formulations containing said compounds and to the use of said compounds in therapy.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: July 11, 2006
    Assignees: AstraZeneca AB, NPS Pharmaceuticals
    Inventors: Jalaj Arora, Louise Edwards, Methvin Isaac, Abdelmalik Slassi, Tomislav Stefanac, David Wensbo, Tao Xin
  • Publication number: 20060122397
    Abstract: The present invention relates to new compounds of formula I, a process for their preparation and new intermediates prepared therein, pharmaceutical formulations containing said compounds and to the use of said compounds in therapy.
    Type: Application
    Filed: November 14, 2005
    Publication date: June 8, 2006
    Applicants: AstraZeneca AB, NPS Pharmaceutical
    Inventors: Jalaj Arora, Louise Edwards, Methvin Isaac, Donald McLeod, Abdelmalik Slassi, Tomislav Stefanac, Thomas Stormann, David Wensbo, Tao Xin, Helena Gyback, Martin Johansson, Annika Kers, John Malmberg, Alexander Minidis, Karin Oscarsson, Mangus Waldman, Ulrika Yngve, Christoffer Osterwall
  • Publication number: 20060063772
    Abstract: The present invention relates to new compounds of formula I, wherein P, Q, X1, X2, X3, X4, X4, R, R1, R2, R3, R4, R5, R6, R7, m, n, o, p and q are defined as in any one of claims 1 to 12, a process for their preparation and new intermediates prepared therein, pharmaceutical formulations containing said compounds and to the use of said compounds in therapy.
    Type: Application
    Filed: November 10, 2005
    Publication date: March 23, 2006
    Inventors: Jalaj Arora, Louise Edwards, Methvin Isaac, Donald McLeod, Abdelmalik Slassi, Tomislav Stefanac, Thomas Stormann, David Wensbo, Tao Xin, Annika Kers, Johan Malmberg, Karin Oscarsson
  • Publication number: 20060025414
    Abstract: The present invention relates to new compounds of formula I, wherein P, Q, X1, X2, X3, X4 X5, X6, R1, R2, R3, m, n, and p are as defined as in formula I, or salts, or hydrates thereof, processes for their preparation and new intermediates used in the preparation thereof, pharmaceutical compositions containing said compounds and to the use of said compounds in therapy.
    Type: Application
    Filed: February 18, 2005
    Publication date: February 2, 2006
    Inventors: Jalaj Arora, Louise Edwards, Methvin Isaac, Annika Kers, Karin Staaf, Abdelmalik Slassi, Tomislav Stefanac, David Wensbo, Tao Xin, Bjorn Holm
  • Publication number: 20060019997
    Abstract: The present invention relates to new compounds of formula I, wherein P, Q, X1, X2, X3, X4 X7, X8, R1, R2, R3, m, n, and p are as defined as in formula I, or salts, or hydrates thereof, processes for their preparation and new intermediates used in the preparation thereof, pharmaceutical compositions containing said compounds and to the use of said compounds in therapy.
    Type: Application
    Filed: February 18, 2005
    Publication date: January 26, 2006
    Inventors: Louise Edwards, Methvin Isaac, Martin Johansson, Johan Malmberg, Alexander Minidis, Karin Staaf, Abdelmalik Slassi, David Wensbo, Tomislav Stefanac, Tao Xin
  • Publication number: 20060009443
    Abstract: The present invention is directed to compounds of formula I: wherein X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, R1, R2, R3, R4, and n are as defined for formula I in the description. The invention also relates to processes for the preparation of the compounds and to new intermediates employed in the preparation, pharmaceutical compositions containing the compounds, and to the use of the compounds in therapy.
    Type: Application
    Filed: February 18, 2005
    Publication date: January 12, 2006
    Inventors: David Wensbo, Martin Johansson, Alexander Minidis, Karin Staaf, Annika Kers, Louise Edwards, Methvin Isaac, Tom Stefanac, Abdelmalik Slassi, Don McLeod, Tao Xin
  • Publication number: 20060004021
    Abstract: The present invention relates to new compounds of formula I, wherein P, Q, X1, X2, X3, X4, R1, R2, m and p, are as defined as in formula I, or, salts, solvates or solvated salts thereof, processes for their preparation and new intermediates used in the preparation thereof, pharmaceutical compositions containing said compounds and to the use of said compounds in therapy.
    Type: Application
    Filed: February 18, 2005
    Publication date: January 5, 2006
    Inventors: Martin Johansson, Alexander Minidis, Karin Staaf, David Wensbo, Donald McLeod, Louise Edwards, Methvin Isaac, Anne O'Brien, Abdelmalik Slassi, Tao Xin, Tomislav Stefanac
  • Publication number: 20050272779
    Abstract: The present invention relates to new compounds of formula I, to pharmaceutical formulations containing the compounds, and to the use of the compounds in the prevention and/or treatment of mGluR5 receptor-mediated disorders.
    Type: Application
    Filed: February 9, 2005
    Publication date: December 8, 2005
    Inventors: Louise Edwards, Methvin Isaac, Martin Johansson, Annika Kers, Johan Malmberg, Donald McLeod, Alexander Mindis, Karin Staaf, Abdelmalik Slassi, Tomislav Stefanac, Thomas Stormann, David Wensbo, Tao Xin, Jalaj Arora
  • Publication number: 20050239788
    Abstract: Described herein are compounds with affinity for the 5-HT6 receptor, which have the general formula I: wherein: R represents a group of Formula II or Formula III; one of A, B D or E is a N atom, the remainder being CH groups; R1 is selected from the group consisting of SO2Ar, C(O)Ar, CH2Ar and Ar; R2, R3 and R4 are independently selected from the group consisting of H and alkyl; ?represents a single or double bond, with the proviso that there is only one double bond in the ring at a time; n is an integer of from 1-3; Z is selected from the group consisting of C, CH and N, provided that when ?is a double bond, Z is C and when ?is a single bond, Z is selected from CH and N; Ar is an optionally substituted aryl group; with the proviso that when R is a group of Formula II, R1 is SO2Ar. Also described is the use of these compounds as pharmaceuticals to treat indications where inhibition of the 5-HT6 receptor is implicated, such as schizophrenia.
    Type: Application
    Filed: June 24, 2005
    Publication date: October 27, 2005
    Applicant: NPS Allelix Corp.
    Inventors: Louise Edwards, Abdelmalik Slassi, Ashok Tehim, Tao Xin
  • Patent number: 6916818
    Abstract: Described herein are compounds with affinity for the 5-HT6 receptor, which have the general formula I: wherein: R represents a group of Formula II or Formula III; one of A, B D or E is a N atom, the remainder being CH groups; R1 is selected from the group consisting of SO2Ar, C(O)Ar, CH2Ar and Ar; R2, R3 and R4 are independently selected from the group consisting of H and alkyl; — represents a single or double bond, with the proviso that there is only one double bond in the ring at a time; n is an integer of from 1-3; Z is selected from the group consisting of C, CH and N, provided that when —is a double bond, Z is C and when — is a single bond, Z is selected from CH and N; Ar is an optionally substituted aryl group; with the proviso that when R is a group of Formula II, R1 is SO2Ar. Also described is the use of these compounds as pharmaceuticals to treat indications where inhibition of the 5-HT6 receptor is implicated, such as schizophrenia.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: July 12, 2005
    Assignee: NPS Allelix Corp.
    Inventors: Louise Edwards, Abdelmalik Slassi, Ashok Tehim, Tao Xin
  • Patent number: 6897215
    Abstract: Novel 6-bicyclopiperazinyl-1-arylsulfonylindole and 6-bicyclopiperidinyl-1-arylsulfonylindole compounds are disclosed which are useful as 5-HT6 receptor antagonists in the treatment of central nervous system disorders such as schizophrenia, depression, ADHD, and cognition and memory dysfunction The compounds are Formula I wherein: R1 is H or C1-4 alkyl; X is CH, —C—OR3, ?C, or —N and Y is C-R2 or N; R3 is H or —C(O)-R4; R4 is H or a labile prodrug group; n is 1 or 2; m and o are, independently, 0, 1, or 2 with the proviso that m+o is 1 or 2; and Ar is an aryl or heteroaryl group optionally substituted with 1-3 substitutents.
    Type: Grant
    Filed: November 4, 2000
    Date of Patent: May 24, 2005
    Assignee: NPS Allelix Corp.
    Inventors: Tao Xin, Methvin Isaac, Abdelmalik Slassi
  • Publication number: 20040167158
    Abstract: Described herein are compounds useful in the treatment of migraine, which have the general formula: 1
    Type: Application
    Filed: February 24, 2004
    Publication date: August 26, 2004
    Applicant: NPS ALLELIX BIOPHARMACEUTICALS, INC.
    Inventors: Louise Edwards, Methvin Isaac, Shawn Maddaford, Abdelmalik Slassi, Tao Xin
  • Publication number: 20040152740
    Abstract: The present invention relates to compounds of Formula 1: 1
    Type: Application
    Filed: September 8, 2003
    Publication date: August 5, 2004
    Applicant: NPS Allelix Corporation
    Inventors: Methvin Isaac, Tao Xin, Tomislav Stefanac, Anne O'Brien, Kathleen Da Silva-Turcot, Jalaj Arora, Shawn Maddaford, Abdelmalik Slassi
  • Publication number: 20040152741
    Abstract: The present invention relates to compounds of Formula 1, 1
    Type: Application
    Filed: September 8, 2003
    Publication date: August 5, 2004
    Applicant: NPS Allelix Corporation
    Inventors: Methvin Isaac, Tao Xin, Louise Edwards, Leah Begleiter, Tomislav Stefanac, Anne O'Brien, Kathleen Da Silva-Turcot, Jalaj Arora, Shawn Maddaford, Abdelmalik Slassi
  • Publication number: 20040152699
    Abstract: The present invention relates to new compounds of formula I, 1
    Type: Application
    Filed: August 8, 2003
    Publication date: August 5, 2004
    Applicant: AstraZeneca and NPS Pharmaceuticals, Inc.
    Inventors: Jalaj Arora, Louise Edwards, Methvin Isaac, Donald A. McLeod, Abdelmalik Slassi, Tomislav Stefanac, Thomas M. Stormann, David Wensbo, Tao Xin, Helena Gyback, Martin Johansson, Annika Kers, John Malmberg, Alexander Minidis, Karin Oscarsson, Mangus Waldman, Ulrika Yngve, Christoffer Osterwall
  • Publication number: 20040132734
    Abstract: Described herein are compounds with affinity for the 5-HT6 receptor, which have the general formula I: 1
    Type: Application
    Filed: December 19, 2003
    Publication date: July 8, 2004
    Applicant: NPS Allelix Corp.
    Inventors: Louise Edwards, Abdelmalik Slassi, Ashok Tehim, Tao Xin