Patents by Inventor Irina Piskunova

Irina Piskunova 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: 8071620
    Abstract: This invention pertains to certain carbamic acid compounds of the following formula, which inhibit HDAC (histone deacetylase) activity wherein: A is independently an unsubstituted or substituted bicyclic C9-10heteroaryl group (e.g., quinolinyl; quinoxalinyl; benzoxazolyl; benzothiazolyl); Q is an acid leader group, and is independently an unsubstituted or substituted, saturated or unsaturated C1-7alkylene group having a backbone length of 4 or less; with the proviso that if A is unsubstituted benzothiazol-2-yl, then Q is an unsaturated group; and with the proviso that if A is unsubstituted quinolin-6-yl, then Q is unsubstituted at the ?-position; and with the proviso that A is not benzimidazol-2-yl; and pharmaceutically acceptable salts, solvates, amides, esters, ethers, chemically protected forms, and prodrugs thereof.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: December 6, 2011
    Assignee: Topotarget UK Limited
    Inventors: Paul W. Finn, Ivars Kalvinsh, Einars Loza, Victor Andrianov, Olga Habarova, Daina Lolya, Irina Piskunova
  • Publication number: 20100093743
    Abstract: This invention pertains to certain carbamic acid compounds of the following formula, which inhibit HDAC (histone deacetylase) activity wherein: A is independently an unsubstituted or substituted bicyclic C9-10heteroaryl group (e.g., quinolinyl; quinoxalinyl; benzoxazolyl; benzothiazolyl); Q is an acid leader group, and is independently an unsubstituted or substituted, saturated or unsaturated C1 7alkylene group having a backbone length of 4 or less; with the proviso that if A is unsubstituted benzothiazol-2-yl, then Q is an unsaturated group; and with the proviso that if A is unsubstituted quinolin-6-yl, then Q is unsubstituted at the ?-position; and with the proviso that A is not benzimidazol-2-yl; and pharmaceutically acceptable salts, solvates, amides, esters, ethers, chemically protected forms, and prodrugs thereof.
    Type: Application
    Filed: December 14, 2009
    Publication date: April 15, 2010
    Applicant: TOPOTARGET UK LIMITED
    Inventors: Paul W. FINN, Ivars Kalvinsh, Einars Loza, Victor Andrianov, Olga Habarova, Daina Lolya, Irina Piskunova
  • Patent number: 7652036
    Abstract: This invention pertains to certain carbamic acid compounds of the following formula, which inhibit HDAC (histone deacetylase) activity wherein: A is independently an unsubstituted or substituted bicyclic C9-10heteroaryl group (e.g., quinolinyl; quinoxalinyl; benzoxazolyl; benzothiazolyl); Q is an acid leader group, and is independently an unsubstituted or substituted, saturated or unsaturated C17alkylene group having a backbone length of 4 or less; with the proviso that if A is unsubstituted benzothiazol-2-yl, then Q is an unsaturated group; and with the proviso that if A is unsubstituted quinolin-6-yl, then Q is unsubstituted at the ?-position; and with the proviso that A is not benzimidazol-2-yl; and pharmaceutically acceptable salts, solvates, amides, esters, ethers, chemically protected forms, and prodrugs thereof.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: January 26, 2010
    Assignee: Topotarget UK Limited
    Inventors: Paul W. Finn, Ivars Kalvinsh, Einars Loza, Victor Andrianov, Olga Habarova, Daina Lolya, Irina Piskunova
  • Publication number: 20080161401
    Abstract: This invention pertains to certain active carbamic acid compounds which inhibit HDAC activity and which have the following formula: (I) A is an aryl group; Q1 is a covalent bond or an aryl leader group; J is a sulfonamide linkage selected from: —S(?O)2NR1— and —NR1S(?O)2—; R1 is a sulfonamido substituent; and, Q2 is an acid leader group; with the proviso that if J is —S(?O)2NR1—, then Q1 is an aryl leader group; and pharmaceutically acceptable salts, solvates, amides, esters, ethers, chemically protected forms, and prodrugs thereof. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit HDAC, and, e.g., to inhibit proliferative conditions, such as cancer and psoriasis.
    Type: Application
    Filed: February 13, 2008
    Publication date: July 3, 2008
    Applicant: TOPOTARGET UK LIMITED
    Inventors: Clare J. Watkins, Maria Rosario Romero-Martin, Kathryn G. Moore, James Ritchie, Paul W. Finn, Ivars Kalvinsh, Einars Loza, Klara Dikovska, Vija Gailite, Maxim Vorona, Irina Piskunova, Igor Starchenkov, Victor Andrianov, C. John Harris, James E. S. Duffy
  • Patent number: 7183298
    Abstract: This invention pertains to certain active carbamic acid compounds which inhibit HDAC activity and which have the following formula: (I) A is an aryl group; Q1 is a covalent bond or an aryl leader group; J is a sulfonamide linkage selected from: —S(?O)2NR1— and —NR1S(?O)2—; R1 is a sulfonamido substituent; and, Q2 is an acid leader group; with the proviso that if J is —S(?O)2NR1—, then Q1 is an aryl leader group; and pharmaceutically acceptable salts, solvates, amides, esters, ethers, chemically protected forms, and prodrugs thereof. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit HDAC, and, e.g., to inhibit proliferative conditions, such as cancer and psoriasis.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: February 27, 2007
    Assignee: Topotarget UK Limited
    Inventors: Clare J Watkins, Maria Rosario Romero-Martin, Kathryn G Moore, James Ritchie, Paul W Finn, Ivars Kalvinsh, Einars Loza, Klara Dikovska, Vija Gailite, Maxim Vorona, Irina Piskunova, Igor Starchenkov, Victor Andrianov, C. John Harris, James E. S. Duffy
  • Publication number: 20060079528
    Abstract: This invention pertains to certain carbamic acid compounds of the following formula, which inhibit HDAC (histone deacetylase) activity wherein: A is independently an unsubstituted or substituted bicyclic C9-10heteroaryl group (e.g., quinolinyl; quinoxalinyl; benzoxazolyl; benzothiazolyl); Q is an acid leader group, and is independently an unsubstituted or substituted, saturated or unsaturated C17alkylene group having a backbone length of 4 or less; with the proviso that if A is unsubstituted benzothiazol-2-yl, then Q is an unsaturated group; and with the proviso that if A is unsubstituted quinolin-6-yl, then Q is unsubstituted at the a-position; and with the proviso that A is not benzimidazol-2-yl; and pharmaceutically acceptable salts, solvates, amides, esters, ethers, chemically protected forms, and prodrugs thereof.
    Type: Application
    Filed: February 25, 2004
    Publication date: April 13, 2006
    Inventors: Paul Finn, Ivars Kalvinsh, Einars Loza, Victor Andrianov, Olga Habarova, Daina Lolya, Irina Piskunova
  • Publication number: 20050107445
    Abstract: This invention pertains to certain active carbamic acid compounds which inhibit HDAC activity and which have the following formula: (I) A is an aryl group; Q1 is a covalent bond or an aryl leader group; J is a sulfonamide linkage selected from: —S(?O)2NR1— and —NR1S(?O)2—; R1 is a sulfonamido substituent; and, Q2 is an acid leader group; with the proviso that if J is —S(?O)2NR1—, then Q1 is an aryl leader group; and pharmaceutically acceptable salts, solvates, amides, esters, ethers, chemically protected forms, and prodrugs thereof. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit HDAC, and, e.g., to inhibit proliferative conditions, such as cancer and psoriasis.
    Type: Application
    Filed: March 29, 2004
    Publication date: May 19, 2005
    Applicant: PROLIFIX LIMITED
    Inventors: Clare Watkins, Maria Rosario Romero-Martin, Kathryn Moore, James Ritchie, Paul Finn, Ivars Kalvinsh, Einars Loza, Klara Dikovska, Vija Gailite, Maxim Vorona, Irina Piskunova, Igor Starchenkov, Victor Andrianov, C. Harris, James Duffy
  • Patent number: 6888027
    Abstract: This invention pertains to certain active carbamic acid compounds which inhibit HDAC activity and which have the following formula: (I) A is an aryl group; Q1 is a covalent bond or an aryl leader group; J is a sulfonamide linkage selected from: —S(?O)2NR1— and —NR1S(?O)2—; R1 is a sulfonamido substituent; and, Q2 is an acid leader group; with the proviso that if J is —S(?O)2NR1—, then Q1 is an aryl leader group; and pharmaceutically acceptable salts, solvates, amides, esters, ethers, chemically protected forms, and prodrugs thereof. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit HDAC, and, e.g., to inhibit proliferative conditions, such as cancer and psoriasis.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: May 3, 2005
    Assignee: Topotarget UK Limited
    Inventors: Clare J Watkins, Maria Rosario Romero-Martin, Kathryn G Moore, James Ritchie, Paul W Finn, Ivars Kalvinsh, Einars Loza, Klara Dikovska, Vija Gailite, Maxim Vorona, Irina Piskunova, Igor Starchenkov, Victor Andrianov, C. John Harris, James E. S. Duffy
  • Publication number: 20050085515
    Abstract: This invention pertains to certain active carbamic acid compounds which inhibit HDAC activity and which have the following formula: (I) A is an aryl group; Q1 is a covalent bond or an aryl leader group; J is a sulfonamide linkage selected from: —S(?O)2NR1— and —NR1S(?O)2—; R1 is a sulfonamido substituent; and, Q2 is an acid leader group; with the proviso that if J is —S(?O)2NR1—, then Q1 is an aryl leader group; and pharmaceutically acceptable salts, solvates, amides, esters, ethers, chemically protected forms, and prodrugs thereof. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit HDAC, and, e.g., to inhibit proliferative conditions, such as cancer and psoriasis.
    Type: Application
    Filed: September 30, 2004
    Publication date: April 21, 2005
    Applicant: Topo Target UK Limited,
    Inventors: Clare Watkins, Maria Rosario Romero-Martin, Kathryn Moore, James Ritchie, Paul Finn, Ivars Kalvinsh, Einars Loza, Klara Dikovska, Vija Gailite, Maxim Vorona, Irina Piskunova, Igor Starchenkov, Victor Andrianov, C. John Harris, James Duffy
  • Publication number: 20040077726
    Abstract: This invention pertains to certain active carbamic acid compounds which inhibit HDAC activity and which have the following formula: (I) A is an aryl group; Q1 is a covalent bond or an aryl leader group; J is a sulfonamide linkage selected from: —S (═O)2NR1— and —NR1S(═O)2—; R1 is a sulfonamido substituent; and, Q2 is an acid leader group; with the proviso that if J is —S(═O)2NR1—, then Q1 is an aryl leader group; and pharmaceutically acceptable salts, solvates, amides, esters, ethers, chemically protected forms, and prodrugs thereof. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit HDAC, and, e.g., to inhibit proliferative conditions, such as cancer and psoriasis.
    Type: Application
    Filed: August 20, 2003
    Publication date: April 22, 2004
    Inventors: Clare Watkins, Maria Rosario Romero-Martin, Kathryn G Moore, James Ritchie, Paul W Finn, Ivars Kalvinsh, Einars Loza, Klara Dikovska, Vija Gailite, Maxim Vorona, Irina Piskunova, Igor Starchenkov, Victor Andrianov, C. John Harris, James E.S. Duffy