Patents by Inventor Rajeshwar Singh

Rajeshwar Singh 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: 7816344
    Abstract: This invention provides, among other things, novel oxaboroles which are monosubstituted at the 3-, 6-, or 7-position, or disubstituted at the 3-/6- or 3-/7- positions, which are useful for treating bacterial infections, pharmaceutical compositions containing such oxaboroles, as well as combinations of these oxaboroles with at least one additional therapeutically effective agent.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: October 19, 2010
    Assignee: Anacor Pharmaceuticals, Inc.
    Inventors: Stephen J. Baker, Vincent S. Hernandez, Rashmi Sharma, James A. Nieman, Tsutomu Akama, Yong-Kang Zhang, Jacob J. Plattner, Michael Richard Kevin Alley, Rajeshwar Singh, Fernando Rock
  • Publication number: 20100256092
    Abstract: This invention relates to, among other items, 6-substituted benzoxaborole compounds and their use for treating bacterial infections.
    Type: Application
    Filed: May 12, 2009
    Publication date: October 7, 2010
    Applicants: Anacor Pharmaceuticals, Inc., GlaxoSmithKline
    Inventors: Yi Xia, Michael Richard Kevin Alley, Yasheen Zhou, Vincent S. Hernandez, Jacob J. Plattner, Charles Z. Ding, Kathy Cao, Yong-Kang Zhang, Andrew Benowitz, Tsutomu Akama, Jessica Sligar, Guofeng Jia, Ligong Ou, Neerja Saraswat, Sreekanth Ramachandran, Chris Diaper, Yanchen Zhang, Goverdhan Reddy Banda, James A. Nieman, Mehdi Keramane, Rahim Mohammed, Rajendra Subedi, Hong Liang, Rajeshwar Singh
  • Patent number: 7713950
    Abstract: Novel florfenicol compounds having the chemical structure: or a pharmaceutically-acceptable salt thereof or a solvate thereof, or prodrug thereof, wherein R1 is CHCl2, CHClF, CHF2, CHBrCl, CH3, CH2N3, CH2CN, CH(R2)NH2 or CHX1X2; where R2 is H, CH3 or CH2OH, and X1 and X2 are independently selected halogens; and R3 is CH2Cl, CH2F, CHF2, CHCl2 or CH2OH are disclosed. The compounds are useful for the treatment and/or prevention of bacterial infections in a broad range of patients such as, without limitation, birds, fish, shellfish and mammals.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: May 11, 2010
    Assignee: Intervet Inc.
    Inventors: Dale E. Shuster, Scott J. Hecker, Tomasz W. Glinka, Rajeshwar Singh, Zhuoyi Su
  • Publication number: 20090291917
    Abstract: Compounds and methods of treating anti-inflammatory conditions are disclosed.
    Type: Application
    Filed: March 5, 2009
    Publication date: November 26, 2009
    Applicant: Anacor Pharmaceuticals, Inc.
    Inventors: Tsutomu Akama, Yong-Kang Zhang, Charles Z. Ding, Jacob J. Plattner, Kirk R. Maples, Yvonne Freund, Virginia Sanders, Yi Xia, Stephen J. Baker, James A. Nieman, Xiaosong Lu, Marcelo Sales, Rashmi Sharma, Rajeshwar Singh, Robert T. Jacobs, Daitao Chen, Michael Richard Kevin Alley
  • Publication number: 20090239824
    Abstract: Compositions and methods of use of borole derivatives, including benzoxaboroles, benzazaboroles and benzthiaboroles, as therapeutic agents for treatment of diseases caused by bacteria or viruses are disclosed, as well as methods for synthesis of said agents and compositions thereof.
    Type: Application
    Filed: November 13, 2008
    Publication date: September 24, 2009
    Applicant: Anacor Pharmaceuticals, Inc.
    Inventors: Ving Lee, Jacob J. Plattner, Stephen J. Benkovic, Stephen J. Baker, Kirk R. Maples, Carolyn Bellinger-Kawahara, Tsutomu Akama, Yong-Kang Zhang, Rajeshwar Singh, Vittorio A. Sauro
  • Publication number: 20090227541
    Abstract: This invention provides, among other things, novel compounds useful for treating bacterial infections, pharmaceutical compositions containing such compounds, as well as combinations of these compounds with at least one additional therapeutically effective agent.
    Type: Application
    Filed: June 19, 2008
    Publication date: September 10, 2009
    Applicant: Anacor Pharmaceuticals, Inc.
    Inventors: Stephen J. Baker, Vincent S. Hernandez, Rashmi Sharma, James A. Nieman, Tsutomu Akama, Yong-Kang Zhang, Jacob J. Plattner, Michael Richard Kevin Alley, Rajeshwar Singh, Fernando Rock
  • Patent number: 7582627
    Abstract: Antibacterial 3-aminoquinazolin-2,4-diones have formula (I) wherein: R1 and R3 include alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heterocyclic, and heteroaryl; R5, R6, and R8 include H, alkyl, alkoxy, halo, NO2, CN, NH2, alkyl and dialkylamino; R7 includes hydrogen, alkyl, cycloalkyl, heterocyclic, fused heterocyclic, aryl and fused aryl; J and K are C or N; and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: September 1, 2009
    Assignee: Warner-Lambert Company
    Inventors: Paul Bird, Edmund Lee Ellsworth, Dai Quoc Nguyen, Joseph Peter Sanchez, Howard Daniel Hollis Showalter, Rajeshwar Singh, Michael Andrew Stier, Tuan Phong Tran, Brian Morgan Watson, Judy Yip
  • Patent number: 7465836
    Abstract: Compositions and methods of use of borole derivatives, including benzoxaboroles, benzazaboroles and benzthiaboroles, as therapeutic agents for treatment of diseases caused by bacteria or viruses are disclosed, as well as methods for synthesis of said agents and compositions thereof.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: December 16, 2008
    Assignee: Anacor Pharmaceuticals, Inc.
    Inventors: Ving Lee, Jacob J. Plattner, Stephen J. Benkovic, Stephen J. Baker, Kirk R. Maples, Carolyn Bellinger-Kawahara, Tsutomu Akama, Yong-Kang Zhang, Rajeshwar Singh, Vittorio A. Sauro
  • Publication number: 20080293675
    Abstract: The structure and preparation of antibiotics incorporating borinic acid complexes are disclosed, especially hydroxyquinoline, imidazole and picolinic acid derivatives, along with compositions of these antibiotics and methods of using the antibiotics and compositions as bactericidal and fungicidal agents as well as therapeutic agents for the treatment of diseases caused by bacteria and fungi.
    Type: Application
    Filed: January 9, 2008
    Publication date: November 27, 2008
    Applicant: ANACOR PHARMACEUTCALS INC.
    Inventors: Ving Lee, Stephen Benkovic, Stephen Baker, Kirk Maples, Tsutomu Akama, Yong-Kang Zhang, Rajeshwar Singh, Vittorio Sauro, Chetan Pandit, Zhuoyi Su, Zhixiang Yang
  • Patent number: 7390806
    Abstract: The structure and preparation of antibiotics incorporating borinic acid complexes are disclosed, especially hydroxyquinoline, imidazole and picolinic acid derivatives, along with compositions of these antibiotics and methods of using the antibiotics and compositions as bactericidal and fungicidal agents as well as therapeutic agents for the treatment of diseases caused by bacteria and fungi.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: June 24, 2008
    Assignee: Anacor Pharmaceuticals, Inc.
    Inventors: Ving Lee, Stephen J. Benkovic, Stephen J. Baker, Kirk R. Maples, Tsutomu Akama, Yong-Kang Zhang, Rajeshwar Singh, Vittorio A. Sauro, Chetan Pandit, Zhuoyi Su, Zhixiang Yang
  • Publication number: 20080146527
    Abstract: Novel florfenicol compounds having the chemical structure: or a pharmaceutically-acceptable salt thereof or a solvate thereof, or prodrug thereof, wherein R1 is CHCl2, CHClF, CHF2, CHBrCl, CH3, CH2N3, CH2CN, CH(R2)NH2 or CH X1X2; where R2 is H, CH3 or CH2OH, and X1 and X2 are independently selected halogens; and R3 is CH2Cl, CH2F, CHF2, CHCl2 or CH2OH are disclosed. The compounds are useful for the treatment and/or prevention of bacterial infections in a broad range of patients such as, without limitation, birds, fish, shellfish and mammals.
    Type: Application
    Filed: February 27, 2008
    Publication date: June 19, 2008
    Inventors: Dale E. Shuster, Scott Hecker, Tomasz W. Glinka, Rajeshwar Singh, Zhuoyi Su
  • Patent number: 7361689
    Abstract: Novel florfenicol compounds having the chemical structure: or a pharmaceutically-acceptable salt thereof or a solvate thereof, or prodrug thereof, wherein R1 is CHCl2, CHClF, CHF2, CHBrCl, CH3, CH2N3, CH2CN, CH(R2)NH2 or CH X1X2; where R2 is H, CH3 or CH2OH, and X1 and X2 are independently selected halogens; and R3 is CH2Cl, CH2F, CHF2, CHCl2 or CH2OH are disclosed. The compounds are useful for the treatment and/or prevention of bacterial infections in a broad range of patients such as, without limitation, birds, fish, shellfish and mammals.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: April 22, 2008
    Assignee: Schering-Plough Animal Health Corporation
    Inventors: Dale E. Shuster, Scott Hecker, Tomasz W. Glinka, Rajeshwar Singh, Zhuoyi Su
  • Publication number: 20070265226
    Abstract: Compositions and methods of use of boron derivatives, including benzoxaboroles, benzazaboroles and benzthiaboroles, as therapeutic agents for treatment of diseases caused by fungi, yeast, bacteria or viruses are disclosed, as well as methods for synthesis of said agents and compositions thereof.
    Type: Application
    Filed: May 2, 2007
    Publication date: November 15, 2007
    Applicant: Anacor Pharmaceuticals
    Inventors: Ving Lee, Jacob Plattner, Stephen Benkovic, Stephen Baker, Kirk Maples, Carolyn Bellinger-Kawahara, Tsutomu Akama, Yong-Kang Zhang, Rajeshwar Singh, Vittorio Sauro
  • Publication number: 20060287308
    Abstract: Antibacterial 3-aminoquinazolin-2,4-diones have formula (1) wherein: R1 and R3 include alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heterocyclic, and heteroaryl; R5, R6, and R8 include H, alkyl, alkoxy, halo, NO2, CN, NH2, alkyl and dialkylamino; R7 includes hydrogen, alkyl, cycloalkyl, heterocyclic, fused heterocyclic, aryl and fused aryl; J and K are C or N; and pharmaceutically acceptable salts thereof.
    Type: Application
    Filed: June 13, 2006
    Publication date: December 21, 2006
    Inventors: Paul Bird, Edmund Ellsworth, Dai Nguyen, Joseph Sanchez, Howard Showalter, Rajeshwar Singh, Michael Stier, Tuan Tran, Brian Watson, Judy Yip
  • Patent number: 7094780
    Abstract: Antibacterial 3-aminoquinazolin-2,4-diones have formula (I) wherein: R1 and R3 include alkyl, alkenyl, cycloalkyl, aryl, hetero-cyclic, and heteroaryl; R5, R6, and R8 include H, alkyl, alkoxy, halo, NO2, CN, NH2, alkyl and dialkylamino; R7 includes hydrogen, alkyl, cycloalkyl, hetero-cyclic, fused heterocyclic, aryl and fused aryl; J and K are C or N; and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: August 22, 2006
    Assignee: Warner Lambert Company LLC
    Inventors: Paul Bird, Edmund Lee Ellsworth, Dai Quoc Nguyen, Joseph Peter Sanchez, Howard Daniel Hollis Showalter, Rajeshwar Singh, Michael Andrew Stier, Tuan Phong Tran, Brian Morgan Watson, Judy Yip
  • Publication number: 20060183762
    Abstract: Antibacterial 3-aminoquinazolin-2,4-diones have formula (I) wherein: R1 and R3 include alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heterocyclic, and heteroaryl; R5, R6, and R8 include H, alkyl, alkoxy, halo, NO2, CN, NH2, alkyl and dialkylamino; R7 includes hydrogen, alkyl, cycloalkyl, heterocyclic, fused heterocyclic, aryl and fused aryl; J and K are C or N; and pharmaceutically acceptable salts thereof.
    Type: Application
    Filed: December 12, 2000
    Publication date: August 17, 2006
    Inventors: Paul Bird, Edmund Ellsworth, Dai Nguyen, Joseph Sanchez, Howard Showalter, Rajeshwar Singh, Michael Stier, Tuan Tran, Brian Watson, Judy Yip
  • Patent number: 6982260
    Abstract: This invention provides quinazolines that are useful for treating cell proliferative diseases and disorders, such as cardiovascular diseases, infections, cancers, autoimmune diseases, gout, kidney disease, and neurodegenerative diseases and disorders such as Alzheimer's disease. We have now discovered a group of 2-arylamino-7-(alkyl)oxy-8-alkylquinazolines and 8-alkyl-2-arylamino-quinazoline 2,7-diamines that are potent inhibitors of cyclin-dependent kinases (cdks). The compounds are readily synthesized and can be administered by a variety of routes, including orally, and have sufficient bioavailability. This invention also provides pharmaceutical formulations comprising at least one of the quinazoline compounds together with a pharmaceutically acceptable carrier, diluent, or excipient therefor. The invention further provide useful intermediates generated during the production of the quinazoline compounds.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: January 3, 2006
    Assignee: Warner-Lambert Company
    Inventors: Mark Robert Barvian, Ellen Myra Dobrusin, James Stanley Kaltenbronn, Peter L. Toogood, Roy Thomas Winters, Inderjit S. Sidhu, Rajeshwar Singh, Yadagiri Bathini, Ronald George Micetich
  • Publication number: 20050182139
    Abstract: Novel florfenicol compounds having the chemical structure: or a pharmaceutically-acceptable salt thereof or a solvate thereof,or prodrug thereof, wherein R1 is CHCl2, CHClF, CHF2, CHBrCl, CH3, CH2N3, CH2CN, CH(R2)NH2 or CH X1X2; where R2 is H, CH3 or CH2OH, and X1 and X2 are independently selected halogens; and R3 is CH2Cl, CH2F, CHF2, CHCl2 or CH2OH are disclosed. The compounds are useful for the treatment and/or prevention of bacterial infections in a broad range of patients such as, without limitation, birds, fish, shellfish and mammals.
    Type: Application
    Filed: December 21, 2004
    Publication date: August 18, 2005
    Inventors: Dale Shuster, Scott Hecker, Tomasz Glinka, Rajeshwar Singh, Zhuoyi Su
  • Patent number: 6916803
    Abstract: The present invention relates to novel Syn isomers of racemates and optical isomers of 3-(heteroaryl acetamido)-2-oxo-azetidine-1-sulfonic acids of the following formula: and their use in treating infections caused by gram-negative pathogenic bacteria.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: July 12, 2005
    Assignee: Pantherix, Ltd.
    Inventors: Ronald George Micetich, Samarendra Maiti, Charles Fiakpui, George Thomas, Andhe V. Narender Reddy, Sameeh M. Salama, Rajeshwar Singh
  • Publication number: 20050070503
    Abstract: The structure and preparation of antibiotics incorporating borinic acid complexes are disclosed, especially hydroxyquinoline, imidazole and picolinic acid derivatives, along with compositions of these antibiotics and methods of using the antibiotics and compositions as bactericidal and fungicidal agents as well as therapeutic agents for the treatment of diseases caused by bacteria and fungi.
    Type: Application
    Filed: June 14, 2004
    Publication date: March 31, 2005
    Inventors: Ving Lee, Stephen Benkovic, Stephen Baker, Kirk Maples, Tsutomu Akama, Yong-Kang Zhang, Rajeshwar Singh, Vittorio Sauro, Chetan Pandit, Zhuoyi Su, Zhixiang Yang