Patents by Inventor Chakrapani Subramanyam

Chakrapani Subramanyam 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: 8518944
    Abstract: Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula I as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: August 27, 2013
    Assignee: Pfizer Inc.
    Inventors: Chakrapani Subramanyam, Travis T. Wager
  • Publication number: 20120252758
    Abstract: Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula I as defined herein. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 4, 2012
    Inventors: Martin Youngjin Pettersson, Douglas Scott Johnson, Chakrapani Subramanyam, Christopher John O'Donnell, Christopher William Am Ende, Benjamin Adam Fish, Michael Eric Green, Patrick Bradley Mullins, Cory Michael Stiff, Tuan Phong Tran, Thayalan Navaratnam
  • Publication number: 20120202787
    Abstract: Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula I; as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.
    Type: Application
    Filed: October 12, 2010
    Publication date: August 9, 2012
    Inventors: Christopher William am Ende, Douglas Scott Johnson, Martin Youngjin Pettersson, Chakrapani Subramanyam, Christopher John O'Donnell
  • Publication number: 20120157440
    Abstract: Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula I: and pharmaceutically acceptable salts thereof, wherein X, Y, A, R4, n, and R7 are as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.
    Type: Application
    Filed: December 13, 2011
    Publication date: June 21, 2012
    Inventors: TODD W. BUTLER, Ramalakshmi Y. Chandrasekaran, Scot R. Mente, Chakrapani Subramanyam, Travis T. Wager
  • Publication number: 20120065188
    Abstract: Compounds of the general Formula I, wherein X1, X2, X3, X4, X5, X6, X7, R1, R2, R4, R5, R6, R7, R8, R9, R10, Y1, n, m, p and q are defined as above, their preparation and their use as antimicrobial agents.
    Type: Application
    Filed: November 22, 2011
    Publication date: March 15, 2012
    Inventors: Steven Joseph Brickner, Jinshan Michael Chen, Zhengong Bryan Li, Anthony Marfat, Mark Joseph Mitton-Fry, Michael A. Plotkin, Usa Datta Reilly, Chakrapani Subramanyam, Zhijun Zhang, Shaughnessy Robinson
  • Publication number: 20110098272
    Abstract: Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula I as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.
    Type: Application
    Filed: October 25, 2010
    Publication date: April 28, 2011
    Inventors: Chakrapani Subramanyam, Travis T. Wager
  • Publication number: 20110092480
    Abstract: Compounds of the general Formula I, wherein X1, X2, X3, X4, X5, X6, X7, R1, R2, R4, R5, R6, R7, R8, R9, R10, Y1, n, m, p and q are defined as above, their preparation and their use as antimicrobial agents.
    Type: Application
    Filed: December 20, 2010
    Publication date: April 21, 2011
    Inventors: Steven Joseph Brickner, Jinshan Michael Chen, Zhengong Bryan Li, Anthony Marfat, Mark Joseph Mitton-Fry, Michael A. Plotkin, Usa Datta Reilly, Chakrapani Subramanyam, Zhijun Zhang, Shaughnessy Robinson
  • Patent number: 7553972
    Abstract: The present invention provides benzamide inhibitors of the P2X7 receptor of the formula: wherein R1-R3 are as defined herein. The compounds of the invention are useful in the treatment of IL-1 mediated disorders, including, without limitation, inflammatory diseases such as osteoarthritis and rheumatoid arthritis; allergies, asthma, COPD, cancer, reperfusion or ischemia in stroke or heart attack, autoimmune diseases and other disorders.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: June 30, 2009
    Assignee: Pfizer, Inc.
    Inventors: Mark A. Dombrowski, Allen J. Duplantier, Chakrapani Subramanyam
  • Publication number: 20080280879
    Abstract: Compounds of the general Formula I, wherein X1, X2, X3, X4, X5, X6, X7, R1, R2, R4, R5, R6, R7, R8, R9, R10, Y1, n, m, p and q are defined as above, their preparation and their use as antimicrobial agents.
    Type: Application
    Filed: May 8, 2008
    Publication date: November 13, 2008
    Inventors: Steven Jospeh BRICKNER, Jinshan Michael Chen, Zhengong Bryan Li, Anthony Marfat, Mark Joseph Mitton-Fry, Micheal A. Plotkin, Usa Datta Reilly, Chakrapani Subramanyam, Zhijun Zhang, Shaughnessy Robinson
  • Patent number: 7235549
    Abstract: The present invention relates to novel to P2X7 inhibitors of formula I and to processes for their preparation, intermediates useful in their preparation, pharmaceutical compositions containing them, and their use in therapy. The active compounds of the present invention are potent inhibitors of P2X7 and as such are useful in the treatment of inflammation, osteoarthritis, rheumatoid arthritis, cancer, reperfusion or ischemia in stroke or heart attack, autoimmune diseases and other disorders.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: June 26, 2007
    Assignee: Pfizer Inc.
    Inventors: Allen J. Duplantier, Chakrapani Subramanyam
  • Publication number: 20070142329
    Abstract: The present invention provides benzamide inhibitors of the P2X7 receptor of the formula: wherein R1-R3 are as defined herein. The compounds of the invention are useful in the treatment of IL-1 mediated disorders, including, without limitation, inflammatory diseases such as osteoarthritis and rheumatoid arthritis; allergies, asthma, COPD, cancer, reperfusion or ischemia in stroke or heart attack, autoimmune diseases and other disorders.
    Type: Application
    Filed: February 9, 2007
    Publication date: June 21, 2007
    Inventors: Mark Dombroski, Allen Duplantier, Chakrapani Subramanyam
  • Patent number: 7214677
    Abstract: The present invention relates to novel to P2X7 inhibitors of formula I and to processes for their preparation, intermediates useful in their preparation, pharmaceutical compositions containing them, and their use in therapy. The active compounds of the present invention are potent inhibitors of P2X7 and as such are useful in the treatment of inflammation, osteoarthritis, rheumatoid arthritis, cancer, reperfusion or ischemia in stroke or heart attack, autoimmune diseases and other disorders.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: May 8, 2007
    Assignees: Pfizer Inc., Pfizer Products Inc.
    Inventors: Allen J. Duplantier, Chakrapani Subramanyam
  • Patent number: 7186742
    Abstract: The present invention provides benzamide inhibitors of the P2X7 receptor of the formula: wherein R1–R3 are as defined herein. The compounds of the invention are useful in the treatment of IL-1 mediated disorders, including, without limitation, inflammatory diseases such as osteoarthritis and rheumatoid arthritis; allergies, asthma, COPD, cancer, reperfusion or ischemia in stroke or heart attack, autoimmune diseases and other disorders.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: March 6, 2007
    Assignee: Pfizer Inc
    Inventors: Mark A Dombroski, Allen J. Duplantier, Chakrapani Subramanyam
  • Publication number: 20060217430
    Abstract: The present invention provides benzamide inhibitors of the P2X7 receptor of the formula: wherein R1-R3 are as defined herein. The compounds of the invention are useful in the treatment of IL-1 mediated disorders, including, without limitation, inflammatory diseases such as osteoarthritis and rheumatoid arthritis; allergies, asthma, COPD, cancer, reperfusion or ischemia in stroke or heart attack, autoimmune diseases and other disorders.
    Type: Application
    Filed: March 23, 2006
    Publication date: September 28, 2006
    Inventors: Mark Dombroski, Allen Duplantier, Chakrapani Subramanyam
  • Patent number: 7071223
    Abstract: The present invention provides benzamide inhibitors of the P2X7 receptor of the formula: wherein R1–R3 are as defined herein. The compounds of the invention are useful in the treatment of IL-1 mediated disorders, including, without limitation, inflammatory diseases such as osteoarthritis and rheumatoid arthritis; allergies, asthma, COPD, cancer, reperfusion or ischemia in stroke or heart attack, autoimmune diseases and other disorders.
    Type: Grant
    Filed: December 30, 2003
    Date of Patent: July 4, 2006
    Assignee: Pfizer, Inc.
    Inventors: Mark A Dombroski, Allen J. Duplantier, Chakrapani Subramanyam
  • Publication number: 20060058302
    Abstract: The present invention relates to novel to P2X7 inhibitors of formula I and to processes for their preparation, intermediates useful in their preparation, pharmaceutical compositions containing them, and their use in therapy. The active compounds of the present invention are potent inhibitors of P2X7 and as such are useful in the treatment of inflammation, osteoarthritis, rheumatoid arthritis, cancer, reperfusion or ischemia in stroke or heart attack, autoimmune diseases and other disorders.
    Type: Application
    Filed: October 18, 2005
    Publication date: March 16, 2006
    Inventors: Allen Duplantier, Chakrapani Subramanyam
  • Publication number: 20050009900
    Abstract: The present invention provides benzamide inhibitors of the P2X7 receptor of the formula: wherein R1-R3 are as defined herein. The compounds of the invention are useful in the treatment of IL-1 mediated disorders, including, without limitation, inflammatory diseases such as osteoarthritis and rheumatoid arthritis; allergies, asthma, COPD, cancer, reperfusion or ischemia in stroke or heart attack, autoimmune diseases and other disorders.
    Type: Application
    Filed: May 12, 2004
    Publication date: January 13, 2005
    Inventors: Mark Dombroski, Allen Duplantier, Chakrapani Subramanyam
  • Publication number: 20030191279
    Abstract: The present invention relates to compounds of formula I 1
    Type: Application
    Filed: February 20, 2003
    Publication date: October 9, 2003
    Inventors: Steven Wayne Goldstein, John Adams Lowe, Kelly Porter Longo, Mohamed Mohamed Ali Awad, Chakrapani Subramanyam, Peter Hans Dorff
  • Publication number: 20030186981
    Abstract: The present invention relates to novel to P2X7 inhibitors of formula I 1
    Type: Application
    Filed: November 12, 2002
    Publication date: October 2, 2003
    Applicant: Pfizer Inc.
    Inventors: Allen J. Duplantier, Chakrapani Subramanyam
  • Patent number: 5874432
    Abstract: Novel 2-substituted saccharins which inhibit the enzymatic activity of proteolytic enzymes, are useful in the treatment of degenerative diseases and have the formula ##STR1## wherein: L is --O--, --S--, --SO-- or --SO.sub.2 --;m and n are each independently 0 or 1;R.sub.1 is halo, lower-alkanoyl, 1-oxophenalenyl, phenyl or substituted phenyl, heterocyclyl or substitued heterocyclyl or, when L is --O-- and n is 1, cycloheptatrienon-2-yl or, when L is --S-- and n is 1, cyano or lower-alkoxythiocarbonyl or, when L is --SO.sub.2 -- and n is 1, lower-alkyl or trifluoromethyl;R.sub.2 is hydrogen, lower-alkoxycarbonyl, phenyl or phenylthio; andR.sub.3 and R.sub.4 are each hydrogen or various substituents and processes for preparation and pharmaceutical compositions and method of use thereof are disclosed.
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: February 23, 1999
    Assignee: Sanofi
    Inventors: Richard Paul Dunlap, Neil Warren Boaz, Albert Joseph Mura, Dennis John Hlasta, Ranjit Chimanlal Desai, Chakrapani Subramanyam, Lee Hamilton Latimer, Eric Piatt Lodge