Patents by Inventor Nizal Samuel Chandrakumar

Nizal Samuel Chandrakumar 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).

  • Heteroarylalkanoic acids as integrin receptor antagonists
    Patent number: 6933304
    Abstract: The present invention relates to a class of compounds represented by the Formula I or a pharmaceutically acceptable salt thereof, pharmaceutical compositions comprising compounds of the Formula I, and methods of selectively antagonizing the ?V?3 and/or the ?V?5 integrin without significantly antagonizing the IIb/IIIa or ?V?6 integrin.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: August 23, 2005
    Assignee: Pharmacia Corporation
    Inventors: Srinivasan Raj Nagarajan, Ish Kumar Khanna, Michael B. Tollefson, Scott B. Mohler, Barbara Chen, Mark Russell, Balekudru Devadas, Thomas D. Penning, Lori A. Schretzman, Dale P. Spangler, Mark Laurence Boys, Nizal Samuel Chandrakumar, Hung-Fun Lu
  • Heterocyclic glycyl beta-alanine derivatives
    Publication number: 20040127477
    Abstract: The present invention relates to a class of compounds represented by the Formula I 1
    Type: Application
    Filed: November 20, 2003
    Publication date: July 1, 2004
    Applicant: G. D. Searle & Co.
    Inventors: Nizal Samuel Chandrakumar, Bipinchandra Nanubhai Desai, Balekudru Devadas, Alan Frank Gasiecki, Renee Huff, Ish K. Khanna, James W. Malecha, Julie M. Miyashiro, Shashidhar N. Rao, Joseph Gerace Rico, Thomas Edward Rogers, Peter Gerrard Ruminski, Mark Andrew Russell, Yi Yu
  • Heterocyclic glycyl &bgr;-alanine derivatives
    Patent number: 6689754
    Abstract: The present invention relates to a class of compounds represented by the Formula I or a pharmaceutically acceptable salts thereof, pharmaceutical compositions containing such compounds and methods of treating conditions mediated by the &agr;v&bgr;3 integrin.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: February 10, 2004
    Assignee: G. D. Searle & Co.
    Inventors: Nizal Samuel Chandrakumar, Bipinchandra Nanubhai Desai, Balekudru Devadas, Alan Frank Gasiecki, Renee Huff, Ish K. Khanna, James W. Malecha, Julie M. Miyashiro, Shashidhar N. Rao, Joseph Gerace Rico, Thomas Edward Rogers, Peter Gerrard Ruminski, Mark Andrew Russell, Yi Yu
  • LTA4 hydrolase inhibitor pharmaceutical compositions and methods of use
    Patent number: 6506876
    Abstract: The present invention provides compounds of the formula Ar1—Q—Ar2—Y—R—Z and pharmaceutically acceptable salts thereof wherein Ar1 and Ar2 are optionally substituted aryl moieties, Z is an optionally substituted nitrogen-containing moiety which may be an acyclic, cyclic or bicyclic amine or an optionally substituted monocyclic or bicyclic nitrogen-containing heteroaromatic moiety; Q is a linking group capable of linking two aryl groups; R is an alkylene moiety; Y is a linking moiety capable of linking an aryl group to an alkylene moiety and wherein Z is bonded to R through a nitrogen atom. The compounds and pharmaceutical compositions of the present invention are useful in the treatment of inflammatory diseases which are mediated by LTB4 production, such as psoriasis, ulcerative colitis, IBD and asthma.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: January 14, 2003
    Assignee: G.D. Searle & Co.
    Inventors: Nizal Samuel Chandrakumar, Barbara Baosheng Chen, Michael Clare, Bipinchandra Nanubhai Desai, Stevan Wakefield Djuric, Stephen Hermann Docter, Alan Frank Gasiecki, Richard Arthur Haack, Chi-Dean Liang, Julie Marion Miyashiro, Thomas Dale Penning, Mark Andrew Russell, Stella Siu-tzyy Yu
  • Heteroarylalkanoic acids as integrin receptor antagonists
    Publication number: 20020133023
    Abstract: The present invention relates to a class of compounds represented by the Formula I 1
    Type: Application
    Filed: June 15, 2001
    Publication date: September 19, 2002
    Inventors: Srinivasan Raj Nagarajan, Ish Kumar Khanna, Michael B. Tollefson, Scott B. Mohler, Barbara Chen, Mark Russell, Balekudru Devadas, Thomas D. Penning, Lori A. Schretzman, Dale P. Spangler, Mark Laurence Boys, Nizal Samuel Chandrakumar, Hung-Fun Lu
  • LTA4 hydrolase inhibitor pharmaceutical compositions and methods of use
    Patent number: 5723492
    Abstract: The present invention provides compounds of the formula Ar.sup.1 --Q--Ar.sup.2 --Y--R--Z and pharmaceutically acceptable salts thereof wherein Ar.sup.1 and Ar.sup.2 are optionally substituted aryl moieties, Z is an optionally substituted nitrogen-containing moiety which may be an acyclic, cyclic or bicyclic amine or an optionally substituted monocyclic or bicyclic nitrogen-containing heteroaromatic moiety; Q is a linking group capable of linking two aryl groups; R is an alkylene moiety; Y is a linking moiety capable of linking an aryl group to an alkylene moiety and wherein Z is bonded to R through a nitrogen atom. The compounds and pharmaceutical compositions of the present invention are useful in the treatment of inflammatory diseases which are mediated by LTB.sub.4 production, such as psoriasis, ulcerative colitis, IBD and asthma.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: March 3, 1998
    Assignee: G.D. Searle & Co.
    Inventors: Nizal Samuel Chandrakumar, Barbara Baosheng Chen, Michael Clare, Bipinchandra Nanubhai Desai, Stevan Wakefield Djuric, Stephen Hermann Docter, Alan Frank Gasiecki, Richard Arthur Haack, Chi-Dean Liang, Julie Marion Miyashiro, Thomas Dale Penning, Mark Andrew Russell, Stella Siu-tzyy Yu
  • 2, 3-, 4-, 5-, 6-, 7-, 8-, 9- and /or 10-substituted dibenzoxazepine compounds, pharmaceutical compositions and methods of use
    Patent number: 5719140
    Abstract: The present invention provides substituted dibenzoxazepine compounds of Formula I: ##STR1## which are useful as analgesic agents for the treatment of pain, and as prostaglandin-E.sub.2 antagonists for the treatment of prostaglandin-E.sub.2 mediated diseases, pharmaceutical compositions comprising a therapeutically-effective amount of a compound of Formula I in combination with a pharmaceutically-acceptable carrier, a method for eliminating or ameliorating pain in an animal, and a method for treating prostaglandin-E.sub.2 mediated diseases in an animal, comprising administering a therapeutically-effective amount of a compound of Formula I to the animal.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: February 17, 1998
    Assignee: G.D. Searle & Co.
    Inventors: Nizal Samuel Chandrakumar, Timothy Joseph Hagen, Barnett Sylvain Pitzele, Sofya Tsymbalov, E. Ann Hallinan
  • LTA.sub.4 hydrolase inhibitors
    Patent number: 5719306
    Abstract: The present invention provides compounds of the formula Ar.sup.1 --Q--Ar.sup.2 --Y--R--Z and pharmaceutically acceptable salts thereof wherein Ar.sup.1 and Ar.sup.2 are optionally substituted aryl moieties, Z is an optionally substituted nitrogen-containing moiety which may be an acyclic, cyclic or bicyclic amine or an optionally substituted monocyclic or bicyclic nitrogen-containing heteroaromatic moiety; Q is a linking group capable of linking two aryl groups; R is an alkylene moiety; Y is a linking moiety capable of linking an aryl group to an alkylene moiety and wherein Z is bonded to R through a nitrogen atom. The compounds and pharmaceutical compositions of the present invention are useful in the treatment of inflammatory diseases which are mediated by LTB.sub.4 production, such as psoriasis, ulcerative colitis, IBD and asthma.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: February 17, 1998
    Assignee: G.D. Searle & Co.
    Inventors: Nizal Samuel Chandrakumar, Barbara Baosheng Chen, Michael Clare, Bipinchandra Nanubhai Desai, Stevan Wakefield Djuric, Stephen Hermann Docter, Alan Frank Gasiecki, Richard Arthur Haack, Chi-Dean Liang, Julie Marion Miyashiro, Thomas Dale Penning, Mark Andrew Russell, Stella Siu-tzyy Yu
  • Substituted dibenzoxazepine urea compounds, pharmaceutical compositions and methods of use
    Patent number: 5661146
    Abstract: The present invention provides substituted dibenzoxazepine and dibenzthiazepine compounds of Formula I: ##STR1## which are useful as analgesic agents for the treatment of pain, pharmaceutical compositions comprising a therapeutically-effective amount of a compound of Formula I in combination with a pharmaceutically-acceptable carrier, and a method for eliminating or ameliorating pain in an animal comprising administering a therapeutically-effective amount of a compound of Formula I to the animal.
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: August 26, 1997
    Assignee: G.D. Searle & Co.
    Inventors: Nizal Samuel Chandrakumar, Donald Willis Hansen, Jr., Karen Berenice Peterson, Barnett Sylvain Pitzele