Patents Represented by Attorney Jianzhong Shen
  • Patent number: 7566788
    Abstract: A salt of the compound N-{2-tert-butyl-1-[(4,4-difluorocyclohexyl)methyl]-1H-benzimidazol-5-yl}ethanesulfonamide, which is an ethanesulphonic acid salt, a sulphuric acid salt, an ethane disulphonic acid salt, a hydrochloric acid salt, a hydrobromic acid salt, a phosphoric acid salt, an acetic acid salt, a fumaric acid salt, a maleic acid salt, a tartaric acid salt, a citric acid salt, a methanesulphonic acid salt, or a p-toluenesulphonic acid salt of said compound.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: July 28, 2009
    Assignee: AstraZeneca AB
    Inventor: Martin Bohlin
  • Patent number: 7550495
    Abstract: Compounds of Formula I, or pharmaceutically acceptable salts thereof: wherein R1, R2, R3, R4, R5, and G are as defined in the specification as well as salts and pharmaceutical compositions including the compounds are prepared. They are useful in therapy, in particular in the management of pain.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: June 23, 2009
    Assignee: AstraZeneca AB
    Inventors: Daniel Pagé, Ziping Liu, Maxime Tremblay, Christopher Walpole, Hua Yang
  • Patent number: 7517898
    Abstract: Compounds of formula (I) or pharmaceutically acceptable salts thereof: wherein R1, R2, R3, R4 and Z are as defined in the specification as well as salts and pharmaceutical compositions including the compounds are prepared. They are useful in therapy, in particular in the management of pain.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: April 14, 2009
    Assignee: AstraZeneca AB
    Inventors: Ziping Liu, Daniel Pagé, Christopher Walpole, Hua Yang
  • Patent number: 7501447
    Abstract: Compounds of formula (I) or pharmaceutically acceptable salts thereof: wherein R1, R2, R3, R4 and Z are as defined in the specification as well as salts and pharmaceutical compositions including the compounds are prepared. They are useful in therapy, in particular in the management of pain.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: March 10, 2009
    Assignee: AstraZeneca AB
    Inventors: Ziping Liu, Daniel Pagé, Christopher Walpole, Hua Yang
  • Patent number: 7465795
    Abstract: This invention relates to novel compounds having the structural formula I below: and their pharmaceutically acceptable salts, tautomers or in vivo-hydrolysable precursors, compositions and methods of use thereof. These novel compounds provide a treatment or prophylaxis of anxiety disorders, cognitive disorders, and/or mood disorders.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: December 16, 2008
    Assignee: AstraZeneca AB
    Inventors: Marc J. Chapdelaine, Cyrus J. Ohnmacht, Christopher Becker, Hui-Fang Chang, Bruce T. Dembofsky
  • Patent number: 7439240
    Abstract: The present invention therefore provides a compound of formula (I) and compositions for treating diseases associated with cysteine protease activity. The compounds are reversible inhibitors of cysteine proteases S, K, F, L and B. Of particular interest are diseases associated with Cathepsin S. In addition this invention also discloses processes for the preparation of such inhibitors.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: October 21, 2008
    Assignee: AstraZeneca AB
    Inventors: Andrew Bailey, Garry Pairaudeau, Anil Patel, Stephen Thom
  • Patent number: 7425556
    Abstract: This invention relates to novel compounds having the structural formula I below: and their pharmaceutically acceptable salts, tautomers or in vivo-hydrolysable precursors, compositions and methods of use thereof. These novel compounds provide a treatment or prophylaxis of anxiety disorders, cognitive disorders, and/or mood disorders.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: September 16, 2008
    Assignee: AstraZeneca AB
    Inventors: Marc J. Chapdelaine, Cyrus J. Ohnmacht, Christopher Becker, Hui-Fang Chang, Bruce T. Dembofsky
  • Patent number: 7407968
    Abstract: Compounds of formula (I) wherein RF1, RF2, Z, R1, R2, Ar, X and Y are as defined in the specification as well as salts and pharmaceutical compositions including the compounds were prepared. These compounds are useful in therapy, in particular in the management of pain.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: August 5, 2008
    Assignee: AstraZeneca AB
    Inventors: Daniel Pagé, Christopher Walpole, Hua Yang
  • Patent number: 7384955
    Abstract: Compounds of formula I or pharmaceutically acceptable salts thereof Formula (I) wherein Ar, R1, R2, R3, Ra, Rb and X are as defined in the specification as well as salts and pharmaceutical compositions including the compounds are prepared.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: June 10, 2008
    Assignee: AstraZeneca AB
    Inventors: Zhongyong Wei, Regis Dolaine, Christopher Walpole, Hua Yang
  • Patent number: 7244850
    Abstract: Compounds of formula (I) or pharmaceutically acceptable salts thereof: Formula (I) wherein R1, R2, RF1, RF2 and Z are as defined in the specification as well as salts and pharmaceutical compositions including the compounds are prepared.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: July 17, 2007
    Assignee: AstraZeneca AB
    Inventors: Daniel Pagé, Christopher Walpole, Hua Yang
  • Patent number: 7205317
    Abstract: Compounds of general formula (I) wherein R1 is selected from any one of phenyl, pyridinyl, thienyl, furanyl, imidazolyl, pyrrolyl and triazolyl; where each R1 phenyl ring and R1 heteroaromatic ring may optionally and independently be further substituted by 1, 2 or 3 substituents selected from straight and branched C1–C6 alkyl, NO2, CF3, C1–C6 alkoxy, chloro, fluoro, bromo, and iodo. The substitutions on thephenyl ring and on the heteroaromatic ring may take place in any position on said ring systems; are disclosed and claimed in the present application, as well as their pharmaceutically acceptable salts and pharmaceutical compositions comprising the novel compounds and their use in therapy, inparticular in the management of pain.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: April 17, 2007
    Assignee: AstraZeneca AB
    Inventors: William Brown, Christopher Walpole, Zhongyong Wei
  • Patent number: 7125881
    Abstract: The present invention therefore provides use of a compound of formula (I) and compositions for treating diseases associated with cysteine protease activity. The compounds are reversible inhibitors of cysteine proteases S, K, F, L and B. Of particular interest are diseases associated with Cathepsin S.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: October 24, 2006
    Assignee: AstraZeneca AB
    Inventors: Andrew Bailey, Garry Pairaudeau, Anil Patel, Stephen Thom
  • Patent number: 7074808
    Abstract: Compounds of general formula I R1 is selected from any one of phenyl, pyridinyl, pyrroloyl, thienyl, furanyl, imidazolyl, triazolyl, thiazolyl and pyridine N-oxide; where each R1 phenyl ring and R1 heteroaromatic ring may optionally and independently be further substituted by 1, 2 or 3 substituents selected from straight and branched C1–C6 alkyl, NO2, CF3, C1–C6 alkoxy, chloro, fluoro, bromo, and iodo. The substitutions on the phenyl ring and on the heteroaromatic ring may take place in any position on said ring systems; are disclosed and claimed in the present application, as well as salts and pharmaceutical compositions comprising the novel compounds and their use in therapy, in particular in the management of pain, anxiety and functional gastrointestinal disorders.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: July 11, 2006
    Assignee: AstraZeneca AB
    Inventors: Zhongyong Wei, William Brown, Christopher Walpole
  • Patent number: 7045625
    Abstract: An asymmetric synthesis of diarylmethylpiperazines is described. The synthetic route enables preparation of a variety of enatiomerically pure amines with different N-alkyl groups. The invention includes an asymmetric addition of organometallic compounds to chiral sulfinimine to give adducts in predominantly one diastereomer can subsequently be transferred into pure enantiomers of by cleavage of the chiral auxilliary which is followed by synthesis of the piperazine ring by alkylation procedures.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: May 16, 2006
    Assignee: AstraZeneca AB
    Inventors: William Brown, Niklas Plobeck
  • Patent number: 7030139
    Abstract: Compounds of general formula (I), are disclosed and claimed in the present application, as well as salts and pharmaceutical compositions comprising the novel compounds and their use in therapy, in particular in the management of pain
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: April 18, 2006
    Assignee: AstraZeneca AB
    Inventors: Yun-Xing Cheng, Miroslaw Tomaszewski, Christopher Walpole, Hua Yang
  • Patent number: 6909005
    Abstract: The present invention provides an improved (S)-4-{[3-[2-(dimethylamino)ethyl]-1H-indol-5-yl]methyl}-2-oxazolidinone product which is prepared by a method which comprises: a) forming a carbamate of formula (III), from methyl 4-nitro-(L)-phenylalaninate hydrochloride; b) reducing the compound of formula (III) to give the compound of formula (IV); c) reducing the methyl ester grouping in the compound of formula (IV) to give the compound of formula (V); d) ring closure of the compound of formula (V) to give the compound of formula (VI); e) diazonium salt formation from the compound of formula (VI) followed by reduction to give the compound of formula (VII); f) Fischer reaction of the compound of formula (VII) to give (S)-4-{[3-[2-(dimethylamino)ethyl]-1H-indol-5-yl]methyl}-2-oxazolidinone.
    Type: Grant
    Filed: September 11, 2000
    Date of Patent: June 21, 2005
    Assignee: AstraZeneca UK Limited
    Inventor: Rajnikant Patel
  • Patent number: 6838468
    Abstract: Compounds of general formula I[Chemical formula should be inserted here. Please see paper copy] R1 is selected from any one of phenyl, pyridinyl, pyrrolyl, thienyl, furanyl, imidazolyl, triazolyl, and pyridine N-oxide; where each R1 phenyl ring and R1 heteroaromatic ring may optionally and independently be further substituted by 1,2 or 3 substituents selected from straight and branched C1-C6 alkyl, NO2, CF3, C1-C6 alkoxy, chloro, fluoro, bromo, and iodo. The substitutions on the phenyl ring and on the heteroaromatic ring may take place in any position on said ring systems; are disclosed and claimed in the present application, as well as their pharmaceutically acceptable salts and pharmaceutical compositions comprising the novel compounds and their use in therapy, in particular in the management of pain, anxiety and functional gastrointestinal disorders.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: January 4, 2005
    Assignee: AstraZeneca AB
    Inventors: William Brown, Christopher Walpole, Zhongyong Wei
  • Patent number: 6835840
    Abstract: The present invention discloses a now and improved process for the preparation 1-substituted di-aryl-4-amino-piperidinyl compounds by a one-pot double arylation followed by optional deprotection step(s).
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: December 28, 2004
    Assignee: AstraZeneca AB
    Inventor: Andrew Griffin