Patents by Inventor Yao-Ling Qiu

Yao-Ling Qiu 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: 20090324544
    Abstract: The present invention discloses compounds of Formula (I), or pharmaceutically acceptable salts, esters, or prodrugs thereof: which inhibit RNA-containing virus, particularly the hepatitis C virus (HCV). Consequently, the compounds of the present invention interfere with the life cycle of the hepatitis C virus and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HCV infection. The invention also relates to methods of treating an HCV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The present invention relates to novel antiviral compounds represented herein above, pharmaceutical compositions comprising such compounds, and methods for the treatment or prophylaxis of viral (particularly HCV) infection in a subject in need of such therapy with said compounds.
    Type: Application
    Filed: June 11, 2009
    Publication date: December 31, 2009
    Inventors: Yao-Ling Qiu, Ce Wang, Jiang Long, Lu Ying, Yat Sun Or
  • Publication number: 20090326019
    Abstract: The present invention discloses compounds of formula (I), or pharmaceutically acceptable salts, esters, or prodrugs thereof: which inhibit RNA-containing virus, particularly the hepatitis C virus (HCV). Consequently, the compounds of the present invention interfere with the life cycle of the hepatitis C virus and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HCV infection. The invention also relates to methods of treating an HCV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The present invention relates to novel antiviral compounds represented herein above, pharmaceutical compositions comprising such compounds, and methods for the treatment or prophylaxis of viral (particularly HCV) infection in a subject in need of such therapy with said compounds.
    Type: Application
    Filed: June 11, 2009
    Publication date: December 31, 2009
    Inventors: Yat Sun Or, Jiang Long, Ce Wang, Lu Ying, Yao-Ling Qiu
  • Publication number: 20090324577
    Abstract: The present invention discloses compounds of formula I, or pharmaceutically acceptable salts, esters, or prodrugs thereof: which exhibit antibacterial properties. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject in need of antibiotic treatment. The invention also relates to methods of treating a bacterial infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The invention further includes process by which to make the compounds of the present invention.
    Type: Application
    Filed: June 29, 2009
    Publication date: December 31, 2009
    Inventors: Yat Sun Or, Wang Guoqiang, Ly Tam Phan, Deqiang Niu, Nha Huu Vo, Yao-Ling Qiu, Yanchun Wang, Marina Busuyek, Ying Hou, Yulin Peng, Heejin Kim, Tongzhu Liu, Jay Judson Farmer, Guoyou Xu
  • Patent number: 7622452
    Abstract: The present invention discloses compounds of formulae (I), (II) or pharmaceutically acceptable salts, esters, or prodrugs thereof: which exhibit antibacterial properties. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject in need of antibiotic treatment. The invention also relates to methods of treating a bacterial infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The invention further includes process by which to make the compounds of the present invention.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: November 24, 2009
    Assignee: Enanta Pharmaceuticals, Inc.
    Inventors: Ly Tam Phan, Yao-Ling Qiu, Yat Sun Or
  • Publication number: 20090274686
    Abstract: The present invention discloses compounds of formula (I) or (II), or pharmaceutically acceptable salts, esters, or prodrugs thereof: which inhibit, preventing or treating abnormal cellular proliferation and/or a viral infection, particularly by HIV, HCV or HBV. Consequently, the compounds of the present invention interfere with the replication cycle of a virus and are also useful as antiviral agents, or interfere with host cellular biochemical process and are also useful as antiproliferative agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from viral infection and/or cell proliferation. The invention also relates to methods of treating a viral infection and/or cell proliferation in a subject by administering a pharmaceutical composition comprising the compounds of the present invention.
    Type: Application
    Filed: May 1, 2009
    Publication date: November 5, 2009
    Inventors: Yat Sun Or, Lu Ying, Xiaowen Peng, Ce Wang, Yao-Ling Qiu
  • Publication number: 20090270457
    Abstract: The present invention discloses compounds of formula I, or pharmaceutically acceptable salts, esters, or prodrugs thereof: which exhibit antibacterial properties. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject in need of antibiotic treatment. The invention also relates to methods of treating a bacterial infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The invention further includes process by which to make the compounds of the present invention.
    Type: Application
    Filed: February 18, 2009
    Publication date: October 29, 2009
    Inventors: IN JONG KIM, TONGZHU LIU, HEEJIN KIM, YANCHUN WANG, YAO-LING QIU, LY TAM PHAN, YAT SUN OR
  • Publication number: 20090264380
    Abstract: The present invention discloses compounds of formula I, II or X, or pharmaceutically acceptable salts, esters, or prodrugs thereof: which exhibit antibacterial properties. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject in need of antibiotic treatment. The invention also relates to methods of treating a bacterial infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The invention further includes process by which to make the compounds of the present invention.
    Type: Application
    Filed: March 6, 2009
    Publication date: October 22, 2009
    Inventors: In Jong Kim, Tongzhu Liu, Jiang Long, Guoqiang Wang, Yao-Ling Qiu, Heejin Kim, Yanchun Wang, Ly Tam Phan, Yat Sun Or
  • Publication number: 20090233972
    Abstract: The present invention discloses compounds of Formulae (I), or pharmaceutically acceptable salts, esters, or prodrugs thereof: which inhibit RNA-containing viruses, particularly the hepatitis C virus (HCV). Consequently, the compounds of the present invention interfere with the life cycle of the hepatitis C virus and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HCV infection. The invention also relates to methods of treating an HCV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The present invention relates to novel antiviral compounds represented herein above, pharmaceutical compositions comprising such compounds, and methods for the treatment or prophylaxis of viral (particularly HCV) infection in a subject in need of such therapy with said compounds.
    Type: Application
    Filed: March 12, 2009
    Publication date: September 17, 2009
    Inventors: YAT SUN OR, LU YING, CE WANG, JIANG LONG, YAO-LING QIU
  • Patent number: 7538225
    Abstract: The present invention relates generally to novel methods for the synthesis of O-(6-pyrazol-1-yl-pyridin-3-ylmethyl)-hydroxylamine which is an essential reagent in the synthesis of one of the bridged erythromycin derivatives and their respective pharmaceutically acceptable salts in PCT Application WO 03/097659 A1.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: May 26, 2009
    Assignee: Enanta Pharmaceuticals, Inc.
    Inventors: Datong Tang, Yao-Ling Qiu, Heejin Kim, Yat Sun Or, Zhe Wang
  • Publication number: 20090118506
    Abstract: The present invention discloses compounds of formula I, II or, or pharmaceutically acceptable salts, esters, or prodrugs thereof: which exhibit antibacterial properties. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject in need of antibiotic treatment. The invention also relates to methods of treating a bacterial infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The invention further includes process by which to make the compounds of the present invention.
    Type: Application
    Filed: September 17, 2008
    Publication date: May 7, 2009
    Inventors: IN JONG KIM, Tongzhu Liu, Yao-Ling Qiu, Guoqiang Wang, Jiang Long, Heejin Kim, Yanchun Wang, Ly Tam Phan, Yat Sun Or
  • Publication number: 20090075915
    Abstract: The present invention discloses compounds of formula I, or pharmaceutically acceptable salts, esters, or prodrugs thereof: which exhibit antibacterial properties. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject in need of antibiotic treatment. The invention also relates to methods of treating a bacterial infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The invention further includes process by which to make the compounds of the present invention.
    Type: Application
    Filed: September 17, 2008
    Publication date: March 19, 2009
    Inventors: IN JONG KIM, Tongzhu Liu, Yao-Ling Qiu, Ly Tam Phan, Yat Sun Or
  • Publication number: 20090060874
    Abstract: The present invention discloses compounds of formula (I), or pharmaceutically acceptable salts, esters, or prodrugs thereof: which inhibit RNA-containing virus, particularly the hepatitis C virus (HCV). Consequently, the compounds of the present invention interfere with the life cycle of the hepatitis C virus and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HCV infection. The invention also relates to methods of treating an HCV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The present invention relates to novel antiviral compounds represented herein above, pharmaceutical compositions comprising such compounds, and methods for the treatment or prophylaxis of viral (particularly HCV) infection in a subject in need of such therapy with said compounds.
    Type: Application
    Filed: September 5, 2008
    Publication date: March 5, 2009
    Inventors: Yao-Ling QIU, Ce WANG, Lu YING, Yat Sun OR
  • Publication number: 20090053175
    Abstract: The present invention discloses compounds of Formula (I), or pharmaceutically acceptable salts, esters, or prodrugs thereof: which inhibit RNA-containing virus, particularly the hepatitis C virus (HCV). Consequently, the compounds of the present invention interfere with the life cycle of the hepatitis C virus and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HCV infection. The invention also relates to methods of treating an HCV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The present invention relates to novel antiviral compounds represented herein above, pharmaceutical compositions comprising such compounds, and methods for the treatment or prophylaxis of viral (particularly HCV) infection in a subject in need of such therapy with said compounds.
    Type: Application
    Filed: August 22, 2008
    Publication date: February 26, 2009
    Inventors: Yat Sun Or, Ce Wang, Jiang Long, Lu Ying, Yao-Ling Qiu
  • Publication number: 20090047247
    Abstract: The present invention discloses compounds of formula (I), or pharmaceutically acceptable salts, esters, or prodrugs thereof: which inhibit RNA-containing virus, particularly the hepatitis C virus (HCV). Consequently, the compounds of the present invention interfere with the life cycle of the hepatitis C virus and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HCV infection. The invention also relates to methods of treating an HCV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The present invention relates to novel antiviral compounds represented herein above, pharmaceutical compositions comprising such compounds, and methods for the treatment or prophylaxis of viral (particularly HCV) infection in a subject in need of such therapy with said compounds.
    Type: Application
    Filed: August 12, 2008
    Publication date: February 19, 2009
    Inventors: Yao-Ling Qiu, Ce Wang, Lu Ying, Yat Sun Or
  • Publication number: 20090022689
    Abstract: The present invention discloses compounds of Formula (I), or pharmaceutically acceptable salts, esters, or prodrugs thereof: which inhibit RNA-containing virus, particularly the hepatitis C virus (HCV). Consequently, the compounds of the present invention interfere with the life cycle of the hepatitis C virus and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HCV infection. The invention also relates to methods of treating an HCV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The present invention relates to novel antiviral compounds represented herein above, pharmaceutical compositions comprising such compounds, and methods for the treatment or prophylaxis of viral (particularly HCV) infection in a subject in need of such therapy with said compounds.
    Type: Application
    Filed: July 9, 2008
    Publication date: January 22, 2009
    Inventors: Yat Sun Or, Lu Ying, Ce Wang, Yao-Ling Qiu
  • Publication number: 20090004140
    Abstract: The present invention discloses compounds of Formulae (I) and (II), or pharmaceutically acceptable salts, esters, or prodrugs thereof: which inhibit RNA-containing virus, particularly the hepatitis C virus (HCV). Consequently, the compounds of the present invention interfere with the life cycle of the hepatitis C virus and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HCV infection. The invention also relates to methods of treating an HCV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The present invention relates to novel antiviral compounds represented herein above, pharmaceutical compositions comprising such compounds, and methods for the treatment or prophylaxis of viral (particularly HCV) infection in a subject in need of such therapy with said compounds.
    Type: Application
    Filed: June 25, 2008
    Publication date: January 1, 2009
    Inventors: YAO-LING QIU, Lu Ying, Yat Sun Or, Ce Wang, Jiang Long
  • Publication number: 20080262208
    Abstract: The present invention discloses compounds of formula I, or pharmaceutically acceptable salts, esters, or prodrugs thereof: which exhibit antibacterial properties. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject in need of antibiotic treatment. The invention also relates to methods of treating a bacterial infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The invention further includes processes by which to make the compounds of the present invention.
    Type: Application
    Filed: May 20, 2008
    Publication date: October 23, 2008
    Inventors: Guoqiang Wang, Ly Tam Phan, Yat Sun Or, Yao-Ling Qiu, Deqiang Niu, Yulin Peng, Marina Busuyek, Yanchun Wang, Suanne Nakajima
  • Publication number: 20080242865
    Abstract: The present invention relates generally to novel methods for the synthesis of O-(6-pyrazol-1-yl-pyridin-3-ylmethyl)-hydroxylamine which is an essential reagent in the synthesis of one of the bridged erythromycin derivatives and their respective pharmaceutically acceptable salts in PCT Application WO 03/097659 A1.
    Type: Application
    Filed: June 9, 2008
    Publication date: October 2, 2008
    Inventors: Datong Tang, Yao-Ling Qiu, Heejin Kim, Yat Sun Or, Zhe Wang
  • Patent number: 7402568
    Abstract: The present invention discloses compounds of formulae I and II, or pharmaceutically acceptable salts, esters, or prodrugs thereof: which exhibit antibacterial properties. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject in need of antibiotic treatment. The invention also relates to methods of treating a bacterial infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The invention further includes process by which to make the compounds of the present invention.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: July 22, 2008
    Assignee: Enanta Pharmaceuticals, Inc.
    Inventors: Yat Sun Or, Yao-Ling Qiu, Guoqiang Wang, Deqiang Niu, Ly Tam Phan
  • Publication number: 20080119418
    Abstract: The present invention discloses compounds of formulae (I), (II) or pharmaceutically acceptable salts, esters, or prodrugs thereof: which exhibit antibacterial properties. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject in need of antibiotic treatment. The invention also relates to methods of treating a bacterial infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The invention further includes process by which to make the compounds of the present invention.
    Type: Application
    Filed: November 15, 2007
    Publication date: May 22, 2008
    Inventors: Ly Tam Phan, Yao-Ling Qiu, Yat Sun Or