Patents by Inventor Tsvetelina Lazarova

Tsvetelina Lazarova 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: 20220064106
    Abstract: The present invention provides, in part a novel class of nonoate compounds which exhibit nitric oxide releasing activity and their pharmaceutically acceptable salts, esters and prodrugs. The compounds release nitric oxide upon activation by contact with plasma. The present invention also relates to the use of the disclosed compounds to deliver nitric oxide to treat disorders arising from nitric oxide dysregulation.
    Type: Application
    Filed: September 14, 2021
    Publication date: March 3, 2022
    Inventors: Steven RIESINGER, Tsvetelina LAZAROVA, Zinadia RIBKOVSKAIA
  • Patent number: 11148999
    Abstract: The present invention provides, in part a novel class of nonoate compounds which exhibit nitric oxide releasing activity and their pharmaceutically acceptable salts, esters and prodrugs. The compounds release nitric oxide upon activation by contact with plasma. The present invention also relates to the use of the disclosed compounds to deliver nitric oxide to treat disorders arising from nitric oxide dysregulation.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: October 19, 2021
    Assignee: MedChem Partners, LLC
    Inventors: Steven Riesinger, Tsvetelina Lazarova, Zinadia Ribkovskaia
  • Publication number: 20190345099
    Abstract: The present invention provides, in part a novel class of nonoate compounds which exhibit nitric oxide releasing activity and their pharmaceutically acceptable salts, esters and prodrugs. The compounds release nitric oxide upon activation by contact with plasma. The present invention also relates to the use of the disclosed compounds to deliver nitric oxide to treat disorders arising from nitric oxide dysregulation.
    Type: Application
    Filed: June 21, 2017
    Publication date: November 14, 2019
    Inventors: Steven RIESINGER, Tsvetelina LAZAROVA, Zinadia RIBKOVSKAIA
  • Publication number: 20090143351
    Abstract: Compounds are provided which have the structure Wherein A, B, C, D, m, Y, Ra, Rc, Rd, and Rd? are as described herein, and which are useful as inhibitors of tryptase, thrombin, trypsin, Factor Xa, Factor VIIa, Factor XIa, and urokinase-type plasminogen activator and may be employed in preventing and/or treating asthma, chronic asthma, allergic rhinitis, and thrombotic disorders.
    Type: Application
    Filed: January 26, 2009
    Publication date: June 4, 2009
    Applicant: DAIAMED
    Inventors: Thomas Bannister, Cassandra Celatka, Nizal S. Chandrakumar, Hongfeng Deng, Zihong Guo, Lei Jin, Tsvetelina Lazarova, Jian Lin, Scott T. Moe, Pamela Nagafuji, Manuel Navia, Amy Ripka, Michael J. Rynkiewicz, Kerry L. Spear, James E. Stickler, Roger Xie
  • Patent number: 7501404
    Abstract: Compounds are provided which have the structure Wherein A, B, C, D, m, Y, Ra, Rc, Rd, and Rd? are as described herein, and which are useful as inhibitors of tryptase, thrombin, trypsin, Factor Xa, Factor VIIa, Factor XIa, and urokinase-type plasminogen activator and may be employed in preventing and/or treating asthma, chronic asthma, allergic rhinitis, and thrombotic disorders.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: March 10, 2009
    Assignee: DAIMED
    Inventors: Thomas Bannister, Cassandra Celatka, Nizal S. Chandrakumar, Hongfeng Deng, Zihong Guo, Lei Jin, Tsvetelina Lazarova, Jian Lin, Scott T. Moe, Pamela Nagafuji, Manuel Navia, Amy Ripka, Michael J. Rynkiewicz, Kerry L. Spear, James E. Stickler, Roger Xie
  • Publication number: 20090011977
    Abstract: The present invention relates to novel lipopeptide compounds. The invention also relates to pharmaceutical compositions of these compounds and methods of using these compounds as antibacterial compounds. The invention also relates to methods of producing these novel lipopeptide compounds and intermediates used in producing these compounds.
    Type: Application
    Filed: June 27, 2008
    Publication date: January 8, 2009
    Inventors: Jason Hill, Ian Parr, Michael Morytko, Jim Siedlecki, Xiang Yang Yu, Jared Silverman, Dennis Keith, John Finn, Dale Christensen, Tsvetelina Lazarova, Alan D. Watson, Yan Zhang
  • Publication number: 20080287347
    Abstract: The present invention relates to novel lipopeptide compounds. The invention also relates to pharmaceutical compositions of these compounds and methods of using these compounds as antibacterial compounds. The invention also relates to methods of producing these novel lipopeptide compounds and intermediates used in producing these compounds.
    Type: Application
    Filed: June 27, 2008
    Publication date: November 20, 2008
    Inventors: Jason Hill, Ian Parr, Michael Morytko, Jim Siedlecki, Xiang Yang Yu, Jared Silverman, Dennis Keith, John Finn, Dale Christensen, Tsvetelina Lazarova, Alan D. Watson, Yan Zhang
  • Patent number: 7408025
    Abstract: The present invention relates to novel lipopeptide compounds. The invention also relates to pharmaceutical compositions of these compounds and methods of using these compounds as antibacterial compounds. The invention also relates to methods of producing these novel lipopeptide compounds and intermediates used in producing these compounds.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: August 5, 2008
    Assignee: Cubist Pharmaceuticals, Inc.
    Inventors: Jason Hill, Ian Parr, Michael Morytko, Jim Siedlecki, Xiang Yang Yu, Jared Silverman, Dennis Keith, John Finn, Dale Christensen, Tsvetelina Lazarova, Alan D. Watson, Yan Zhang
  • Patent number: 7335725
    Abstract: The present invention relates to novel lipopeptide compounds. The invention also relates to pharmaceutical compositions of these compounds and methods of using these compounds as antibacterial compounds. The invention also relates to methods of producing these novel lipopeptide compounds and intermediates used in producing these compounds.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: February 26, 2008
    Assignee: Cubist Pharmaceuticals, Inc.
    Inventors: Jason Hill, Ian Parr, Michael Morytko, Jim Siedlecki, Xian Yang Yu, Jared Silverman, Dennis Keith, John Finn, Dale Christensen, Tsvetelina Lazarova, Alan D. Watson, Yan Zhang
  • Publication number: 20070105832
    Abstract: Compounds are provided which have the structure Wherein A, B, C, D, m, Y, Ra, Rc, Rd, and Rd? are as described herein, and which are useful as inhibitors of tryptase, thrombin, trypsin, Factor Xa, Factor VIIa, Factor XIa, and urokinase-type plasminogen activator and may be employed in preventing and/or treating asthma, chronic asthma, allergic rhinitis, and thrombotic disorders.
    Type: Application
    Filed: April 4, 2006
    Publication date: May 10, 2007
    Inventors: Thomas Bannister, Cassandra Celatka, Nizal Chandrakumar, Hongfeng Deng, Zihong Guo, Lei Jin, Tsvetelina Lazarova, Jian Lin, Scott Moe, Pamela Nagafuji, Manuel Navia, Amy Ripka, Michael Rynkiewicz, Kerry Spear, James Stickler, Roger Xie
  • Patent number: 7012064
    Abstract: The present invention relates to methods of treating or preventing an inflammatory or immune disorder in a subject while eliminating or reducing the toxicity associated with the administration of cyclosporin A, comprising systemically administering to said subject a pharmaceutical composition comprising a therapeutically effective amount of at least one compound of Formula (I) or a pharmaceutically acceptable salt, ester or prodrug thereof, in combination with a pharmaceutically acceptable carrier or excipient: in Formula (I), the formula for residue A is:
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: March 14, 2006
    Assignee: Enanta Pharmaceuticals, Inc.
    Inventors: Yat Sun Or, Tsvetelina Lazarova, Jens Werner Eckstein
  • Patent number: 7012065
    Abstract: The present invention relates to novel semi-synthetic cyclosporin analogs for the prevention of organ transplantation rejection and the treatment of immune disorders and inflammation, their use as pharmaceuticals and pharmaceutical composition comprising them, as well as the processes for the their production. The present invention provides a cyclosporin compound of the following Formula (1) or its pharmaceutically acceptable salt, ester or prodrug thereof. In the compound of Formula (1), moiety “A” is Wherein “X” and “Y” are defined herein.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: March 14, 2006
    Assignee: Enanta Pharmaceuticals, Inc.
    Inventors: Yat Sun Or, Tsvetelina Lazarova, Jason Shih-Hao Chen
  • Patent number: 6979671
    Abstract: The present invention relates to a cyclosporin analog of the following formula (I) or its pro-drug or pharmaceutically acceptable salt: In formula I, the formula for residue A is: where X and Y are defined according to the claimed invention the present invention also relates to pharmaceutical compositions comprising pro-drugs or pharmaceutically acceptable salts of the compounds of the present invention and the use thereof for treating an inflammatory or immune disorder in a subject need of such treatment.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: December 27, 2005
    Assignee: Enanta Pharmaceuticals, Inc.
    Inventors: Yat Sun Or, Tsvetelina Lazarova, Jens Werner Eckstein
  • Publication number: 20050203006
    Abstract: The present invention relates to novel lipopeptide compounds. The invention also relates to pharmaceutical compositions of these compounds and methods of using these compounds as antibacterial compounds. The invention also relates to methods of producing these novel lipopeptide compounds and intermediates used in producing these compounds.
    Type: Application
    Filed: May 4, 2005
    Publication date: September 15, 2005
    Inventors: Jason Hill, Ian Parr, Michael Morytko, Jim Siedlecki, Xian Yu, Jared Silverman, Dennis Keith, John Finn, Dale Christensen, Tsvetelina Lazarova, Alan Watson, Yan Zhang
  • Patent number: 6911525
    Abstract: The present invention relates to novel lipopeptide compounds. The invention also relates to pharmaceutical compositions of these compounds and methods of using these compounds as antibacterial compounds. The invention also relates to methods of producing these novel lipopeptide compounds and intermediates used in producing these compounds.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: June 28, 2005
    Assignee: Cubist Pharmaceuticals, Inc.
    Inventors: Jason Hill, Ian Parr, Michael Morytko, Jim Siedlecki, Xian Yang Yu, Jared Silverman, Dennis Keith, John Finn, Dale Christensen, Tsvetelina Lazarova, Alan D. Watson, Yan Zhang
  • Patent number: 6794490
    Abstract: The present invention relates to novel lipopeptide compounds. The invention also relates to pharmaceutical compositions of these compounds and methods of using these compounds as antibacterial compounds. The invention also relates to methods of producing these novel lipopeptide compounds and intermediates used in producing these compounds.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: September 21, 2004
    Assignee: Cubist Pharmaceuticals, Inc.
    Inventors: Jason Hill, Ian Parr, Michael Morytko, Jim Siedlecki, Xian Yang Yu, Jared Silverman, Dennis Keith, John Finn, Dale Christensen, Tsvetelina Lazarova, Alan D. Watson, Yan Zhang
  • Patent number: 6784156
    Abstract: The present invention relates to novel semisynthetic cyclosporin analogs of Formula (I): X is absent, —C1-C6 alkyl-, or —C3-C6 cycloalkyl- Y is selected from the group consisting of: (i) C(O)—O—R1, where R1 is hydrogen, C1-C6 alkyl, optionally substituted with halogen, heterocyclic, aryl, C1-C6 alkoxy, C1-C6 alkylthio, halogen-substituted C1-C6 alkoxy, or halogen-substituted C1-C6 alkylthio; (ii) C(O)—S—R1, where R1 is as previously defined; (iii) C(O)—OCH2—OC(O)R2, where R2 is C1-C6 alkyl, optionally substituted with halogen, C1-C6 alkoxy; C1-C6 alkylthio, heterocyclic or aryl; (iv) C(S)—O—R1, where R1 is as previously defined, and (v) C(S)—S—R1, where R1 is as previously defined; B is -&agr;Abu-, -Val-, -Thr- or -Nva-; and U is -(D)Ala-, -(D)Ser-, —[O-(2-hydroxyethyl)(D)Ser]-, —[O-acyl(D)Ser]- or —[O-(2-acyloxyethyl)(D)Ser]-.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: August 31, 2004
    Assignee: Enanta Pharmaceuticals, Inc.
    Inventors: Yat Sun Or, Tsvetelina Lazarova
  • Publication number: 20040157768
    Abstract: The present invention provides a cyclosporin of the following Formula (I), A compound of Formula (I) 1
    Type: Application
    Filed: February 7, 2003
    Publication date: August 12, 2004
    Inventors: Yat Sun Or, Tsvetelina Lazarova, Jason Shih-Hao Chen
  • Publication number: 20040110666
    Abstract: The present invention provides a cyclosporin of the following Formula (I), 1
    Type: Application
    Filed: December 4, 2002
    Publication date: June 10, 2004
    Inventors: Yat Sun Or, Tsvetelina Lazarova, Jason Shih-Hao Chen
  • Publication number: 20040067878
    Abstract: The present invention relates to novel lipopeptide compounds. The invention also relates to pharmaceutical compositions of these compounds and methods of using these compounds as antibacterial compounds. The invention also relates to methods of producing these novel lipopeptide compounds and intermediates used in producing these compounds.
    Type: Application
    Filed: December 15, 2000
    Publication date: April 8, 2004
    Inventors: Jason Hill, Ian Parr, Michael Morytko, Jim Siedlecki, Xiang Yang Yu, Jared Silverman, Dennis Keith, John Finn, Dale Christensen, Tsvetelina Lazarova, Alan D. Watson, Yan Zhang