Patents by Inventor Dmitri A. Pissarnitski

Dmitri A. Pissarnitski 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: 20150307533
    Abstract: Disclosed herein are compounds of Formula (I), wherein each of the substituents is given the definition as set forth in the specification and claims. Also disclosed are pharmaceutical compositions containing the compound of Formula (I) and use of the compound in the treatment of neurodegenerative diseases or conditions such as Alzheimer's disease.
    Type: Application
    Filed: November 22, 2013
    Publication date: October 29, 2015
    Applicant: MERCK SHARP & DOHME CORP.
    Inventors: DMITRI PISSARNITSKI, ZHIQIANG ZHAO
  • Patent number: 9156872
    Abstract: The present invention relates to 2?-Azido Substituted Nucleoside Derivatives of Formula (I): and pharmaceutically acceptable salts thereof, wherein B, X, R1, R2 and R3 are as defined herein. The present invention also relates to compositions comprising at least one 2?-Azido Substituted Nucleoside Derivative, and methods of using the 2?-Azido Substituted Nucleoside Derivatives for treating or preventing HCV infection in a patient.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: October 13, 2015
    Assignee: MERCK SHARP & DOHME CORP.
    Inventors: Vinay Girijavallabhan, F. George Njoroge, Stephane Bogen, Frank Bennett, Vishal Verma, Ashok Arasappan, Kevin Chen, Ying Huang, Angela Kerekes, Latha Nair, Dmitri Pissarnitski, Qun Dang, Ian Davies, David B. Olsen, Andrew Stamford, Joseph P. Vacca
  • Patent number: 9150603
    Abstract: The present invention relates to 2?-Cyano Substituted Nucleoside Derivatives of Formula (I): and pharmaceutically acceptable salts thereof, wherein B, X, R1, R2 and R3 are as defined herein. The present invention also relates to compositions comprising at least one 2?-Cyano Substituted Nucleoside Derivative, and methods of using the 2?-Cyano Substituted Nucleoside Derivatives for treating or preventing HCV infection in a patient.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: October 6, 2015
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Vinay Girijavallabhan, F. George Njoroge, Stephane Bogen, Angela Kerekes, Frank Bennett, Ying Huang, Latha Nair, Dmitri Pissarnitski, Vishal Verma, Qun Dang, Ian Davies, David B. Olsen, Andrew Stamford, Joseph P. Vacca
  • Patent number: 9096582
    Abstract: Disclosed herein are compounds of Formula (I) and pharmaceutically acceptable salts thereof, wherein each of the substituents is given the definition as set forth in the specification and claims. Also disclosed are pharmaceutical compositions containing compounds of Formula (I) and use of the compounds in the treatment of neurodegenerative diseases or conditions such as Alzheimer's disease.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: August 4, 2015
    Assignee: MERCK SHARP & DOHME CORP
    Inventors: William Greenlee, Dmitri Pissarnitski, Zhiqiang Zhao, Zhaoning Zhu
  • Patent number: 9061041
    Abstract: The present invention relates to 2?-Substituted Nucleoside Derivatives of Formula (I): and pharmaceutically acceptable salts thereof, wherein A, B, X, R1, R2 and R3 are as defined herein. The present invention also relates to compositions comprising at least one 2?-Substituted Nucleoside Derivative, and methods of using the 2?-Substituted Nucleoside Derivatives for treating or preventing HCV infection in a patient.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: June 23, 2015
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Vinay Girijavallabhan, F. George Njoroge, Stephane Bogen, Vishal Verma, Frank Bennett, Angela Kerekes, Ashok Arasappan, Dmitri Pissarnitski, Qun Dang, Ian Davies, David B. Olsen, Andrew Stamford, Joseph P. Vacca
  • Publication number: 20150105317
    Abstract: Insulin conjugates comprising an insulin molecule covalently attached to at least one bi-dentate linker having two arms, each arm independently attached to a ligand comprising a saccharide and wherein the saccharide for at least one ligand of the linker is fucose are disclosed. The insulin conjugates display a pharmacokinetic (PK) and/or pharmacodynamic (PD) profile that is responsive to the systemic concentrations of a saccharide such as glucose or alpha-methylmannose even when administered to a subject in need thereof in the absence of an exogenous multivalent saccharide-binding molecule such as Con A.
    Type: Application
    Filed: October 2, 2014
    Publication date: April 16, 2015
    Inventors: Songnian Lin, Lin Yan, Ahmet Kekec, Yuping Zhu, David N. Hunter, Pei Huo, Danqing Feng, Ravi P. Nargund, Christopher R. Moyes, Zhiqiang Zhao, Brenda Pipik, Dmitri Pissarnitski, Joseph L. Duffy, Erin N. Guidry
  • Publication number: 20140296311
    Abstract: Disclosed herein are compounds of Formula (I) and pharmaceutically acceptable salts thereof, wherein each of the substituents is given the definition as set forth in the specification and claims. Also disclosed are pharmaceutical compositions containing compounds of Formula (I) and use of the compounds in the treatment of neurodegenerative diseases or conditions such as Alzheimer's disease.
    Type: Application
    Filed: October 26, 2012
    Publication date: October 2, 2014
    Inventors: William Greenlee, Dmitri Pissarnitski, Zhiqiang Zhao, Zhaoning Zhu
  • Patent number: 8759337
    Abstract: This invention provides novel compounds that are modulators of gamma secretase. The compounds have the formula (Chemical formula should be inserted here as it appears on abstract in paper form). Also disclosed are methods of modulating gamma secretase activity and methods of treating Alzheimer's Disease using the compounds of formula (I).
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: June 24, 2014
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Theodros Asberom, Xianhai Huang, Zhaoning Zhu, John W. Clader, Dmitri A. Pissarnitski, Hubert B. Josien, Hongmei Li
  • Publication number: 20140161770
    Abstract: The present invention relates to 2?-Cyano Substituted Nucleoside Derivatives of Formula (I): and pharmaceutically acceptable salts thereof, wherein B, X, R1, R2 and R3 are as defined herein. The present invention also relates to compositions comprising at least one 2?-Cyano Substituted Nucleoside Derivative, and methods of using the 2?-Cyano Substituted Nucleoside Derivatives for treating or preventing HCV infection in a patient.
    Type: Application
    Filed: April 11, 2012
    Publication date: June 12, 2014
    Applicant: MERCK SHARP & DOHME CORP.
    Inventors: Vinay Girijavallabhan, F. George Njoroge, Stephane Bogen, Angela Kerekes, Frank Bennett, Ying Huang, Latha Nair, Dmitri Pissarnitski, Vishal Verma, Qun Dang, Ian Davies, David B. Olsen, Andrew Stamford, Joseph P. Vacca
  • Publication number: 20140154211
    Abstract: The present invention relates to 2?-Substituted Nucleoside Derivatives of Formula (I): and pharmaceutically acceptable salts thereof, wherein A, B, X, R1, R2 and R3 are as defined herein. The present invention also relates to compositions comprising at least one 2?-Substituted Nucleoside Derivative, and methods of using the 2?-Substituted Nucleoside Derivatives for treating or preventing HCV infection in a patient.
    Type: Application
    Filed: April 11, 2012
    Publication date: June 5, 2014
    Inventors: Vinay Girijavallabhan, F. George Njoroge, Stephane Bogen, Vishal Verma, Frank Bennett, Angela Kereles, Ashok Arasappan, Dmitri Pissarnitski, Qun Dang, Ian Davies, David B. Olsen, Andrew Stamford, Joseph P. Vacca
  • Patent number: 8691832
    Abstract: The present invention is directed to novel tricyclic heterocycles of structural formula I which are inhibitors of the dipeptidyl peptidase-IV enzyme and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly Type 2 diabetes. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which the dipeptidyl peptidase-IV enzyme is involved.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: April 8, 2014
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Duane A. Burnett, Zhiqiang Zhao, David Cole, Hubert Josien, Dmitri A. Pissarnitski, Thavalakulamgar Sasikumar, Wen-Lian Wu, Martin Domalski
  • Patent number: 8664411
    Abstract: Disclosed are novel gamma secretase inhibitors of the formula. Also disclosed are methods of inhibiting gamma-secretase, methods of treating neurodegenerative diseases, and methods of treating Alzheimer's Disease. Also disclosed are processes for preparing alkenes in one reaction step using a mixture of an aldehyde (or ketone) and an alkyl substituted with two electron withdrawing groups, and reacting the mixture with: (a) a sulfonyl halide (e.g., a sulfonyl chloride) and a basic tertiary amine, or, (b) a sulfonyl anhydride and a basic amine, or (c) an aryl-C(O)-halide and a basic tertiary amine, or (d) an aryl-C(O)—O—C(O)-aryl and a basic tertiary amine, or (e) an heteroaryl-C(O)-halide and a basic tertiary amine, or (f) a heteroaryl-C(O)—O—C(O)-heteroaryl and a basic tertiary amine.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: March 4, 2014
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Wen-Lian Wu, Thomas A. Bara, Duane A. Burnett, John W. Clader, Martin S. Domalski, Yan Jin, Hubert B. Josien, Hongmei Li, Xian Liang, Dmitri A. Pissarnitski, Thavalakulamgara K. Sasikumar, Jesse K. Wong, Ruo Xu, Zhiqiang Zhao, Paul McNamara
  • Patent number: 8569521
    Abstract: This invention discloses novel gamma secretase inhibitors of the formula: R2 and R3, or R2 and R4, or R3 and R4, together with the atoms to which they are bound, can form a fused cycloalkyl or fused heterocycloalkyl ring. The cycloalkyl ring or the heterocycloalkyl ring can be optionally substituted with one or more substituents. One or more compounds of formula (I), or formulations comprising such compounds, may be useful, e.g. in treating Alzheimer's Disease.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: October 29, 2013
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Theodros Asberom, Thomas A. Bara, Chad E. Bennett, Duane A. Burnett, Mary Anne Caplen, John W. Clader, David J. Cole, Martin S. Domalski, Hubert B. Josien, Chad E. Knutson, Hongmei Li, Mark D. McBriar, Dmitri A. Pissarnitski, Li Qiang, Murali Rajagopalan, Thavalakulamgara K. Sasikumar, Jing Su, Haiqun Tang, Wen-Lian Wu, Ruo Xu, Zhiqiang Zhao
  • Publication number: 20130261140
    Abstract: The present invention is directed to novel tricyclic heterocycles of structural formula I which are inhibitors of the dipeptidyl peptidase-IV enzyme and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly Type 2 diabetes. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which the dipeptidyl peptidase-IV enzyme is involved.
    Type: Application
    Filed: December 1, 2011
    Publication date: October 3, 2013
    Inventors: Duane A. Burnett, Zhiqiang Zhao, David Cole, Hubert Josien, Dmitri A. Pissarnitski, Thavalakulamgar Sasikumar, Wen-Lian Wu, Martin Domalski
  • Patent number: 8450343
    Abstract: This invention provides novel compounds that are modulators of gamma secretase. The compounds have the formula (I) wherein R2 is a fused bicyclic ring of the formula (II). Also disclosed are methods of modulating gamma secretase activity and methods of treating Alzheimer's disease using the compounds of formula (I).
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: May 28, 2013
    Inventors: Xianhai Huang, Anandan Palani, Jun Qin, Robert G. Aslanian, Zhaoning Zhu, William Greenlee, Hubert Josien, Wei Zhou, Xiaohong Zhu, Chad E. Bennett, Dmitri Pissarnitski, Mihirbaran Mandal, Pawan Dhondi, Troy McCracken, Thomas Bara, Zhiqiang Zhao, Duane Burnett, John Clader
  • Patent number: 8357682
    Abstract: The present invention provides a novel class of heterocyclic compounds of Formula (I) as modulators of gamma secretase, wherein the definitions of the variables of Formula (I) are defined herein, methods of preparing such compounds, pharmaceutical compositions containing one or more such compounds, methods of preparing pharmaceutical formulations comprising one or more such compounds, and methods of treatment, prevention, inhibition, or amelioration of one or more diseases associated with the central nervous system using such compounds or pharmaceutical compositions.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: January 22, 2013
    Inventors: Zhaoning Zhu, William J. Greenlee, Zhong-Yue Sun, Gioconda Gallo, Theodros Asberom, Xianhai Huang, Xiaohong Zhu, Mark D. McBriar, Dmitri A. Pissarnitski, Zhiqiang Zhao, Ruo Xu, Hongmei Li, Anandan Palani, Johannes H. Voigt, Robert D. Mazzola, Jr., John Clader, Hubert Josien, Jun Qin
  • Publication number: 20120264736
    Abstract: This invention discloses novel gamma secretase inhibitors of the formula: R2 and R3, or R2 and R4, or R3 and R4, together with the atoms to which they are bound, can form a fused cycloalkyl or fused heterocycloalkyl ring. The cycloalkyl ring or the heterocycloalkyl ring can be optionally substituted with one or more substituents. One or more compounds of formula (I), or formulations comprising such compounds, may be useful, e.g. in treating Alzheimer's Disease.
    Type: Application
    Filed: October 6, 2011
    Publication date: October 18, 2012
    Applicant: Schering Corporation
    Inventors: Theodros Asberom, Thomas A. Bara, Chad E. Bennett, Duane A. Burnett, Mary Ann Caplen, John W. Clader, David J. Cole, Martin S. Domalski, Hubert B. Josien, Chad E. Knutson, Hongmei Li, Mark D. McBriar, Dmitri A. Pissarnitski, Li Qiang, Murali Rajagopalan, Thavalakulamgara K. Sasikumar, Jing Su, Haiqun Tang, Wen-Lian Wu, Ruo Xu, Zhiqiang Zhao
  • Publication number: 20110294784
    Abstract: This invention provides novel compounds that are modulators of gamma secretase. The compounds have the formula (Chemical formula should be inserted here as it appears on abstract in paper form). Also disclosed are methods of modulating gamma secretase activity and methods of treating Alzheimer's Disease using the compounds of formula (I).
    Type: Application
    Filed: December 18, 2009
    Publication date: December 1, 2011
    Inventors: Theodros Asberom, Xianhai Huang, Zhaoning Zhu, John Clader, Dmitri Pissarnitski, Hubert Josien, Hongmei Li
  • Patent number: 8067621
    Abstract: This invention discloses novel gamma secretase inhibitors of the formula: R2 and R3, or R2 and R4, or R3 and R4, together with the atoms to which they are bound, can form a fused cycloalkyl or fused heterocycloalkyl ring. The cycloalkyl ring or the heterocycloalkyl ring can be optionally substituted with one or more substitutents. One or more compounds of formula (I), or formulations comprising such compounds, may be useful, e.g. in treating Alzheimer's Disease.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: November 29, 2011
    Assignee: Schering Corporation
    Inventors: Theodros Asberom, Thomas A. Bara, Chad E. Bennett, Duane A. Burnett, Mary Ann Caplen, John W. Clader, David J. Cole, Martin S. Domalski, Hubert B. Josien, Chad E. Knutson, Hongmei Li, Mark D. McBriar, Dmitri A. Pissarnitski, Li Qiang, Murali Rajagopalan, Thavalakulamgara K. Sasikumar, Jing Su, Haiqun Tang, Wen-Lian Wu, Ruo Xu, Zhiqiang Zhao
  • Publication number: 20110257156
    Abstract: In its many embodiments, the present invention provides novel heterocyclic compounds as modulators of gamma secretase, methods of preparing such compounds, pharmaceutical compositions containing one or more such compounds, methods of preparing pharmaceutical formulations comprising one or more such compounds, and methods of treatment, prevention, inhibition, or amelioration of one or more diseases associated with the central nervous system using such compounds or pharmaceutical compositions.
    Type: Application
    Filed: November 5, 2009
    Publication date: October 20, 2011
    Inventors: Zhaoning Zhu, William J. Greenlee, David James Cole, Dmitri A. Pissarnitski, Gioconda V. Gallo, Hongmei Li, Hubert B. Josien, Jun Qin, Chad E. Knutson, Mihirbaran Mandal, Monica L. Vicarel, Murali Rajagopalan, Pawan Kumar Dhondi, Ruo Xu, Zhong-Yue Sun, Thomas A. Bara, Xianhai Huang, Xiaohong Zhu, Zhiqiang Zhao, John W. Clader, Anandan Palani, Theodros Asberom, Troy McCracken, Chad E. Bennett