Patents by Inventor Duane Burnett

Duane Burnett 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: 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
  • 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: 20120129846
    Abstract: In its many embodiments, the present invention provides a novel class of heterocyclic compounds of the formula: 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: May 24, 2012
    Inventors: Zhaoning Zhu, William J. Greenlee, Mihir Baran Mandal, Duane A. Burnett, Chad E. Bennett, Troy McCracken
  • Publication number: 20110306593
    Abstract: In its many embodiments, the present invention provides a novel class of heterocyclic compounds of the formula: 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 disease associated with the central nervous system using such compounds or pharmaceutical compostions.
    Type: Application
    Filed: November 11, 2009
    Publication date: December 15, 2011
    Inventors: Zhaoning Zhu, William J. Greenlee, Hongmei Li, Monica L. Vicarel, Jun Qin, Pawan Kumar Dhondi, Xianhai Huang, Anandan Palani, Xiaoxiang Liu, Zhong-Yue Sun, Hubert B. Josien, Ruo Xu, David James Cole, Duane A. Burnett, Chad E. Bennett, Troy McCracken, Malcolm MacCoss
  • 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: 20110236400
    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: Application
    Filed: July 1, 2008
    Publication date: September 29, 2011
    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 E. McNamara
  • Patent number: 7989464
    Abstract: In its many embodiments, the present invention provides tricyclic compounds of formula I (wherein J1-J4, X, and R1-R5 are as defined herein) useful as metabotropic glutamate receptor (mGluR) antagonists, particularly as selective metabotropic glutamate receptor 1 antagonists, pharmaceutical compositions containing the compounds, and methods of treatment using the compounds and compositions to treat diseases associated with metabotropic glutamate receptor (e.g., mGluR1) such as, for example, pain, migraine, anxiety, urinary incontinence and neurodegenerative diseases such Alzheimer's disease.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: August 2, 2011
    Assignee: Schering Corporation
    Inventors: Julius J. Matasi, Deen Tulshian, Duane A. Burnett, Wen-Lian Wu, Peter Korakas, Lisa S. Silverman, Thavalakulamgara K. Sasikumar, Li Qiang, Martin S. Domalski
  • Publication number: 20110110948
    Abstract: Disclosed are novel gamma secretase inhibitors of the formula (I): or a pharmaceutically acceptable salt, solvate, or ester thereof, wherein L1, n, X, Ar, Y, Z, Q, and Q1 are as defined herein. Also disclosed are methods for inhibiting gamma secretase, methods for treating Alzheimer's disease, methods of treating one or more neurodegenerative diseases, and methods of inhibiting the deposition of amyloid protein (e.g., amyloid beta protein) in, on or around neurological tissue (e.g., the brain) using the compounds of formula 1.0.
    Type: Application
    Filed: July 15, 2008
    Publication date: May 12, 2011
    Applicant: SCHERING CORPORATION
    Inventors: Thavalakulamgara K. Sasikumar, Duane A. Burnett, Theodros Asberom, Wen-Lian Wu, Hongmei Li, Ruo Xu, Hubert B. Josien
  • Patent number: 7902157
    Abstract: Disclosed are compounds of the formula wherein Z1 is —CH2—or —C(O)—, R4 and R5 are carbon chains (and optionally, together can form a C2 bridge), u and v are independently an integer of 0-3 such that there sum is from 3 to 5, and R2 is heteroaryl, and R1 and R3 are as defined herein. Also disclosed are methods of treating pain, and methods of inhibiting the absorption of cholesterol using a compound of formula I.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: March 8, 2011
    Assignee: Schering Corporation
    Inventors: Duane A. Burnett, Brian A. McKittrick
  • Patent number: 7884080
    Abstract: The present invention relates to Azetidinone Derivatives of structural formula 1: and compositions comprising an Azetidinone Derivative and methods for treating or preventing a disorder of lipid metabolism, pain, diabetes, a vascular condition, demyelination or nonalcoholic fatty liver disease, comprising administering to a patient an effective amount of an Azetidinone Derivative.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: February 8, 2011
    Assignee: Schering Plough Corporation
    Inventors: Robert G. Aslanian, Chad E. Bennett, Duane A. Burnett, Tin-Yau Chan, Eugenia Y. Kiselgof, Chad E. Knutson, Joel M. Harris, Brian A. McKittrick, Anandan Palani, Elizabeth M. Smith, Henry M. Vaccaro, Dong Xiao, Hyunjin M. Kim
  • Publication number: 20110015190
    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: Application
    Filed: December 4, 2008
    Publication date: January 20, 2011
    Inventors: Xianhai Huang, Anandan Palani, Jun Qin, Robert Aslanian, Zhaoning Zhu, William Greenlee, Hubert Josien, Wei Zhou, Xiaohong Zhou, Chad E. Bennett, Dmitri Pissarnitski, Mihirbaran Mandal, Pawan Dhondi, Troy McCracken, Thomas Bara, Zhiqiang Zhao, Duane Burnett, John Clader
  • Publication number: 20110009392
    Abstract: In its many embodiments, the present invention provides a novel class of 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: August 4, 2008
    Publication date: January 13, 2011
    Inventors: Zhaoning Zhu, William J. Greenlee, John P. Caldwell, Robert D. Mazzola, JR., Brian McKittrick, Chad E. Bennett, Xianhai Huang, Hubert B. Josien, Duane A. Burnett
  • Publication number: 20100298381
    Abstract: In its many embodiments, the present invention provides a novel class of 5-membered, nitrogen-containing 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: September 25, 2008
    Publication date: November 25, 2010
    Inventors: Zhaoning Zhu, William J. Greenlee, John P. Caldwell, Robert D. Mazzola, JR., Brian McKittrick, Chad E. Bennett, Duane A. Burnett
  • Patent number: 7767815
    Abstract: In its many embodiments, the present invention provides tricyclic compounds of formula I (wherein J1-J3, X, Z, and R1-R4 are as defined herein) useful as metabotropic glutamate receptor (mGluR) antagonists, particularly as selective metabotropic glutamate receptor 1 antagonists, pharmaceutical compositions containing the compounds, and methods of treatment using the compounds and compositions to treat diseases associated with metabotropic glutamate receptor (e.g., mGluR1) such as, for example, pain, migraine, anxiety, urinary incontinence and neurodegenerative diseases such Alzheimer's disease.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: August 3, 2010
    Assignee: Schering Corporation
    Inventors: Chad E. Bennett, Wen-Lian Wu, Duane A. Burnett
  • Patent number: 7741289
    Abstract: The present invention provides compounds represented by the structural formula (I): or pharmaceutically acceptable isomers, salts, solvates or esters of the compound of Formula (I), wherein each of the substituents is as specified herein, formulations including the above compounds, processes for preparing the same and methods for treating atherosclerosis, hypercholesterolemia, or sitosterolemia, and for lowering plasma levels of sterols and/or stanols.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: June 22, 2010
    Assignee: Schering Corporation
    Inventors: Duane A. Burnett, John W. Clader, Wayne Vaccaro
  • Patent number: 7732413
    Abstract: The present invention provides compounds represented by the structural formula (I): or pharmaceutically acceptable isomers, salts, solvates or esters of the compound of Formula (I), wherein each of the substituents is as specified herein, formulations including the above compounds, processes for preparing the same and methods for treating atherosclerosis, hypercholesterolemia, or sitosterolemia, and for lowering plasma levels of sterols and/or stanols.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: June 8, 2010
    Assignee: Schering Corporation
    Inventors: Duane A. Burnett, John W. Clader
  • Patent number: 7723020
    Abstract: The use of azetidinone compounds that are inhibitors of cholesterol absorption as tools for discovering and characterizing proteins involved in trafficking or absorption of cholesterol and/or cholesteryl esters in biological systems is presented. These compounds can serve as tools for competitive binding assays to discover and characterize other chemical agents useful as cholesterol absorption inhibitors. New compounds of the present invention are also highly efficacious inhibitors of cholesterol absorption.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: May 25, 2010
    Assignee: Schering Corporation
    Inventors: Scott W. Altmann, Duane A. Burnett, Harry R. Davis, Jr., Michael P. Graziano, Maureen Laverty, Xiaorui Yao
  • Patent number: RE42461
    Abstract: Hydroxy-substituted azetidinone hypocholesterolemic agents of the formula or a pharmaceutically acceptable salt thereof, wherein: Ar1 and Ar2 are aryl or R4-substituted aryl; Ar3 is aryl or R5-substituted aryl; X, Y and Z are —CH2—, —CH(lower alkyl)— or —C(dilower alkyl)—; R and R2 are —OR6, —O(CO)R6, —O(CO)OR9 or —O(CO)NR6R7; R1 and R3 are H or lower alkyl; q is 0 or 1; r is 0 or 1; m, n and p are 0-4; provided that at least one of q and r is 1, and the sum of m, n, p, q and r is 1-6; and provided that when p is O and r is 1, the sum of m, q and n is 1-5; R4 is selected from lower alkyl, R5, —CF3, —CN, —NO2 and halogen R5 is selected from —OR6, —O(CO)R6, —O(CO)OR9, —O(CH2)1-5OR6, —O(CO)NR6R7, —NR6R7, —NR6(CO)R7, —NR6(CO)OR9, —NR6(CO)NR7R8, —NR6SO2R9, —COOR6, —CONR6R7, —COR6, —SO2NR6R7, S(O)0-2R9, —O(CH2)1-10—COOR6, —O(CH2)1-10CON6R7, —(lower alkylene)COOR6 and —CH?CH—COOR6; R6, R7 and R8 are H, lower alkyl or aryl-substituted Ic R9 is lower alkyl, aryl or aryl-substituted lower alkyl; are discl
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: June 14, 2011
    Assignee: Schering Corporation
    Inventors: Stuart B. Rosenblum, Sundeep Dugar, Duane A. Burnett, John W. Clader, Brian A. McKittrick