Patents by Inventor Longhu Zhou
Longhu Zhou 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).
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Patent number: 11963972Abstract: The present invention is directed to compounds, compositions and methods for treating or preventing Zika virus. The compounds include pyrimidine and purine nucleosides and prodrugs thereof, including certain N4-hydroxycytidine nucleoside derivatives, sulfasalazine, and various entry inhibitors.Type: GrantFiled: March 22, 2017Date of Patent: April 23, 2024Assignee: Emory UniversityInventors: Raymond F. Schinazi, Franck Amblard, Bryan D. Cox, Leda Bassit, Longhu Zhou, Christina Gavegnano
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Publication number: 20230000893Abstract: The present invention is directed to compounds, compositions and methods for treating or preventing Zika virus. The compounds include pyrimidine and purine nucleosides and prodrugs thereof, including certain N4-hydroxycytidine nucleoside derivatives, sulfasalazine, and various entry inhibitors.Type: ApplicationFiled: March 22, 2017Publication date: January 5, 2023Inventors: Raymond F. Schinazi, Franck Amblard, Bryan D. Cox, Leda Bassit, Longhu Zhou, Christina Gavegnano
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Publication number: 20190077797Abstract: Methods for forming 2-bromo, 2-fluoro ribofuranose intermediates and 2-chloro, 2-fluoro ribofuranose intermediates for use in preparing antiviral nucleosides are disclosed. Methods for forming nucleosides, and nucleoside prodrugs, using the intermediates, are also disclosed. The methods all produce intermediates, and the resulting nucleosides and prodrugs thereof, wherein the chirality of the carbon at the 2-position is controlled. In some embodiments, the chemistry involves using chiral auxiliaries, such as (R)-2,2-dimethyl-1,3-dioxolane-4-carbaldehyde, and in other embodiments, the chemistry involves using chiral starting materials, such as D-xylose.Type: ApplicationFiled: October 31, 2016Publication date: March 14, 2019Inventors: Ozkan SARI, Coralie DE SCHUTTER, Jong-Hyun CHO, Longhu ZHOU, Hongwang ZANG, Franck AMBLARD, Steven J. COATS, Raymond F. SCHINAZI
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Patent number: 9932326Abstract: The present invention is directed to compounds, compositions and methods for treating or preventing hepatitis C virus (HCV) infection in human subjects or other animal hosts. The compounds are as also pharmaceutically acceptable, salts, prodrugs, and other derivatives thereof as pharmaceutical compositions and methods for treatment or prevention of HCV infection.Type: GrantFiled: November 10, 2015Date of Patent: April 3, 2018Assignees: Cocrystal Pharma, LLC, Emory UniversityInventors: Steven J. Coats, Franck Amblard, Hongwang Zhang, Longhu Zhou, Richard Anthony Whitaker, Tamara Rosario McBrayer, Raymond F. Schinazi, Junxing Shi
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Patent number: 9926295Abstract: The present invention is directed to compounds, compositions and methods for treating or preventing hepatitis C virus (HCV) infection in human subjects or other animal hosts. The compounds are as also pharmaceutically acceptable, salts, prodrugs, and other derivatives thereof as pharmaceutical compositions and methods for treatment or prevention of HCV infection.Type: GrantFiled: April 15, 2015Date of Patent: March 27, 2018Assignees: Cocrystal Pharma, Inc., Emory UniversityInventors: Steven J. Coats, Richard Anthony Whitaker, Tamara Rosario McBrayer, Junxing Shi, Franck Amblard, Hongwang Zhang, Longhu Zhou, Raymond F. Schinazi
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Publication number: 20170029407Abstract: The present invention is directed to compounds, compositions and methods for treating or preventing hepatitis C virus (HCV) infection in human subjects or other animal hosts. The compounds are as also pharmaceutically acceptable, salts, prodrugs, and other derivatives thereof as pharmaceutical compositions and methods for treatment or prevention of HCV infection.Type: ApplicationFiled: April 15, 2016Publication date: February 2, 2017Inventors: Steven J. Coats, Richard Anthony Whitaker, Tamara Rosario McBrayer, Junxing Shi, Franck Amblard, Hongwang Zhang, Longhu Zhou, Raymond F. Schinazi
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Publication number: 20160068518Abstract: The present invention is directed to compounds, compositions and methods for treating or preventing hepatitis C virus (HCV) infection in human subjects or other animal hosts. The compounds are as also pharmaceutically acceptable, salts, prodrugs, and other derivatives thereof as pharmaceutical compositions and methods for treatment or prevention of HCV infection.Type: ApplicationFiled: November 10, 2015Publication date: March 10, 2016Inventors: Steven J. Coats, Franck Amblard, Hongwang Zhang, Longhu Zhou, Richard Anthony Whitaker, Tamara Rosario McBrayer, Raymond F. Schinazi, Junxing Shi
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Patent number: 9181227Abstract: The present invention is directed to compounds, compositions and methods for treating or preventing hepatitis C virus (HCV) infection in human subjects or other animal hosts. The compounds are as also pharmaceutically acceptable, salts, prodrugs, and other derivatives thereof as pharmaceutical compositions and methods for treatment or prevention of HCV infection.Type: GrantFiled: August 8, 2014Date of Patent: November 10, 2015Assignees: Cocrystal Pharma, Inc., Emory UniversityInventors: Steven J. Coats, Franck Amblard, Hongwang Zhang, Longhu Zhou, Richard Anthony Whitaker, Tamara Rosario McBrayer, Raymond F. Schinazi, Junxing Shi
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Patent number: 9173893Abstract: The present invention is directed to compounds, compositions and methods for treating or preventing cancer and viral infections, in particular, HIV, HCV, Norovirus, Saporovirus, HSV-1, HSV-2, Dengue virus, Yellow fever, and HBV in human patients or other animal hosts. The compounds are certain 6-substituted purine monophosphates, and pharmaceutically acceptable, salts, prodrugs, and other derivatives thereof. In particular, the compounds show potent antiviral activity against HIV-1, HIV-2, HCV, Norovirus, Saporovirus, HSV-1, HSV-2, Dengue virus, Yellow fever, and HBV.Type: GrantFiled: September 20, 2013Date of Patent: November 3, 2015Assignee: Cocrystal Pharma, Inc.Inventors: Jong Hyun Cho, Steven J. Coats, Raymond F. Schinazi, Hongwang Zhang, Longhu Zhou
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Publication number: 20140350016Abstract: The present invention is directed to compounds, compositions and methods for treating or preventing hepatitis C virus (HCV) infection in human subjects or other animal hosts. The compounds are as also pharmaceutically acceptable, salts, prodrugs, and other derivatives thereof as pharmaceutical compositions and methods for treatment or prevention of HCV infection.Type: ApplicationFiled: August 8, 2014Publication date: November 27, 2014Inventors: Steven J. Coats, Franck Amblard, Hongwang Zhang, Longhu Zhou, Richard Anthony Whitaker, Tamara Rosario McBrayer, Raymond F. Schinazi, Junxing Shi
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Patent number: 8859595Abstract: The present invention is directed to compounds, compositions and methods for treating or preventing hepatitis C virus (HCV) infection in human subjects or other animal hosts. The compounds are as also pharmaceutically acceptable, salts, prodrugs, and other derivatives thereof as pharmaceutical compositions and methods for treatment or prevention of HCV infection.Type: GrantFiled: August 26, 2011Date of Patent: October 14, 2014Assignees: RFS Pharma, LLC, Emory UniversityInventors: Steven J. Coats, Franck Amblard, Hongwang Zhang, Longhu Zhou, Richard Anthony Whitaker, Tamara Rosario McBrayer, Raymond F. Schinazi, Junxing Shi
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Patent number: 8815829Abstract: The present invention is directed to compounds, compositions and methods for treating or preventing viral infections, in particular, HIV, and HBV, in human patients or other animal hosts. The compounds are 3?-azido-2?,3?-dideoxy purine monophosphates, and pharmaceutically acceptable, salts, prodrugs, and other derivatives thereof. In particular, the compounds show potent antiviral activity against HIV-1 and HBV.Type: GrantFiled: December 9, 2009Date of Patent: August 26, 2014Assignees: RFS Pharma, LLC, Emory University, University of Pittsburgh—of the Commonwealth System of Higher EducationInventors: Raymond F. Schinazi, John W. Mellors, Nicolas Paul Sluis-Cremer, Steven J. Coats, Richard Anthony Whitaker, Brian David Herman, Jong Hyun Cho, Longhu Zhou, Hongwang Zhang
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Publication number: 20140212382Abstract: The present invention is directed to compounds, compositions and methods for treating or preventing viral infections using nucleoside analog monophosphate prodrugs. More specifically, HCV, Norovirus, Saporovirus, Dengue virus, Chikungunya virus and Yellow fever in human patients or other animal hosts. The compounds are certain 2,6-diamino 2-C-methyl purine nucleoside monophosphate prodrugs and modified prodrug analogs, and pharmaceutically acceptable, salts, prodrugs, and other derivatives thereof. In particular, the compounds show potent antiviral activity against HCV, Norovirus, Saporovirus, Dengue virus, Chikungunya virus and Yellow fever. This invention teaches how to modify the metabolic pathway of 2,6-diamino 2?-C-methyl purine and deliver nucleotide triphosphate(s) to polymerases at heretofore unobtainable therapeutically-relevant concentrations.Type: ApplicationFiled: May 16, 2012Publication date: July 31, 2014Applicants: EMORY UNIVERSITY, RFS PHARMA, LLCInventors: Raymond F. Schinazi, Jong Hyun Cho, Longhu Zhou, Hongwang Zhang, Ugo Pradere, Steven J. Coats
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Publication number: 20140066395Abstract: The present invention is directed to compounds, compositions and methods for treating or preventing cancer and viral infections, in particular, HIV, HCV, Norovirus, Saporovirus, HSV-1, HSV-2, Dengue virus, Yellow fever, and HBV in human patients or other animal hosts. The compounds are certain 6-substituted purine monophosphates, and pharmaceutically acceptable, salts, prodrugs, and other derivatives thereof. In particular, the compounds show potent antiviral activity against HIV-1, HIV-2, HCV, Norovirus, Saporovirus, HSV-1, HSV-2, Dengue virus, Yellow fever, and HBV.Type: ApplicationFiled: September 20, 2013Publication date: March 6, 2014Applicants: Emory University, RFS Pharma, LLCInventors: Jong Hyun Cho, Steven J. Coats, Raymond F. Schinazi, Hongwang Zhang, Longhu Zhou
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Patent number: 8609627Abstract: The present invention is directed to compounds, compositions and methods for treating or preventing cancer and viral infections, in particular, HIV, HCV, Norovirus, Saporovirus, HSV-1, HSV-2, Dengue virus, Yellow fever, and HBV in human patients or other animal hosts. The compounds are certain 6-substituted purine monophosphates, and pharmaceutically acceptable, salts, prodrugs, and other derivatives thereof. In particular, the compounds show potent antiviral activity against HIV-1, HIV-2, HCV, Norovirus, Saporovirus, HSV-1, HSV-2, Dengue virus, Yellow fever, and HBV.Type: GrantFiled: February 9, 2010Date of Patent: December 17, 2013Assignees: RFS Pharma, LLC, Emory UniversityInventors: Jong Hyun Cho, Steven J. Coats, Raymond F. Schinazi, Hongwang Zhang, Longhu Zhou
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Publication number: 20130210774Abstract: The present invention is directed to compounds, compositions and methods for treating or preventing hepatitis C virus (HCV) infection in human subjects or other animal hosts. The compounds are as also pharmaceutically acceptable, salts, prodrugs, and other derivatives thereof as pharmaceutical compositions and methods for treatment or prevention of HCV infection.Type: ApplicationFiled: August 26, 2011Publication date: August 15, 2013Applicants: EMORY UNIVERSITY, RFS PHARMA, LLCInventors: Steven J. Coats, Franck Amblard, Hongwang Zhang, Longhu Zhou, Richard Anthony Whitaker, Tamara Rosario McBrayer, Raymond F. Schinazi, Junxing Shi
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Publication number: 20120135951Abstract: The present invention is directed to compounds, compositions and methods for treating or preventing viral infections, in particular, HIV, and HBV, in human patients or other animal hosts. The compounds are 3?-azido-2?,3?-dideoxy purine monophosphates, and pharmaceutically acceptable, salts, prodrugs, and other derivatives thereof. In particular, the compounds show potent antiviral activity against HIV-1 and HBV.Type: ApplicationFiled: December 9, 2009Publication date: May 31, 2012Inventors: Raymond F. Schinazi, Ph.D., John W. Mellors, Nicolas Paul Sluis-Cremer, Steven J. Coats, Ph.D., Richard Anthony Whitaker, Brian David Herman, Jong Hyun Cho, Longhu Zhou, Hongwang Zhang
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Publication number: 20120040924Abstract: The present invention is directed to compounds, compositions and methods for treating or preventing cancer and viral infections, in particular, HIV, HCV, Norovirus, Saporovirus, HSV-1, HSV-2, Dengue virus, Yellow fever, and HBV in human patients or other animal hosts. The compounds are certain 6-substituted purine monophosphates, and pharmaceutically acceptable, salts, prodrugs, and other derivatives thereof. In particular, the compounds show potent antiviral activity against HIV-1, HIV-2, HCV, Norovirus, Saporovirus, HSV-1, HSV-2, Dengue virus, Yellow fever, and HBV.Type: ApplicationFiled: February 9, 2010Publication date: February 16, 2012Applicants: EMORY UNIVERSITY, RFS PHARMA, LLC.Inventors: Jong Hyun Cho, Steven J. Coats, Raymond F. Schinazi, Hongwang Zhang, Longhu Zhou