Patents by Inventor Yusheng Wu
Yusheng Wu 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: 8202843Abstract: The present invention provides macrocyclic compounds useful as therapeutic agents of the formula: or a pharmaceutically acceptable salt, ester, N-oxide, or prodrug thereof, wherein T, R1, R2, R3, D, E, F, and G are as defined herein. More particularly, these compounds are useful as anti-infective, antiproliferative, anti-inflammatory and prokinetic agents.Type: GrantFiled: February 25, 2005Date of Patent: June 19, 2012Assignee: Rib-X Pharmaceuticals, Inc.Inventors: Jay J. Farmer, Ashoke Bhattacharjee, Yi Chen, Joel A. Goldberg, Joseph A. Ippolito, Zoltan F. Kanyo, Rongliang Lou, Adegboyega K. Oyelere, Edward C. Sherer, Joyce A. Sutcliffe, Deping Wang, Yusheng Wu, Yanming Du
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Patent number: 8178513Abstract: Disclosed are compounds of the formula I or a stereoisomer, tautomer, or pharmaceutically acceptable salt or solvate thereof, wherein W, U, X, R1, R2, R3, and R4 are as defined herein, and pharmaceutical compositions comprising the compounds of formula I. Also disclosed are methods of using such compounds to inhibit aspartyl protease and to treat a variety of disease or disorders, including cardiovascular diseases, cognitive and neurodegenerative diseases.Type: GrantFiled: June 8, 2009Date of Patent: May 15, 2012Assignees: Schering Corporation, Pharmacopeia Drug Discovery Inc.Inventors: Zhaoning Zhu, Brian McKittrick, Zhong-Yue Sun, Yuanzan C. Ye, Johannes H. Voigt, Corey O. Strickland, Elizabeth M. Smith, Andrew W. Stamford, William J. Greenlee, Robert D. Mazzola, Jr., John Caldwell, Jared N. Cumming, Lingyan Wang, Yusheng Wu, Ulrich Iserloh, Tao Guo, Thuy X. H. Le, Kurt W. Saionz, Suresh D. Babu, Rachael C. Hunter
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Patent number: 8168641Abstract: Disclosed are compounds of formula I or a stereoisomer, tautomer, or pharmaceutically acceptable salt or solvate thereof, U, W, X, R1, R2, R6, R7, R30 and R31 are as described above in the specification. Also disclosed is the method of inhibiting aspartyl protease, and in particular, the methods of treating cardiovascular diseases, cognitive and neurodegenerative diseases. Also disclosed are methods of treating cognitive or neurodegenerative diseases using the compounds of formula I in combination with a cholinesterase inhibitor or a muscarinic m1 agonist or m2 antagonist.Type: GrantFiled: June 7, 2007Date of Patent: May 1, 2012Assignee: Schering CorporationInventors: Yusheng Wu, Ulrich Iserloh, Jared N. Cumming, Xiaoxiang Liu, Robert D. Mazzola, Zhong-Yue Sun, Ying Huang, Andrew Stamford, Brian McKittrick, Zhaoning Zhu
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Publication number: 20120010200Abstract: The present invention relates generally to the field of anti-infective, anti-proliferative, anti-inflammatory, and prokinetic agents. More particularly, the invention relates to a family of compounds having both a biaryl moiety and at least one heterocylic moiety that are useful as such agents.Type: ApplicationFiled: September 22, 2011Publication date: January 12, 2012Inventors: Jiacheng Zhou, Ashoke Bhattacharjee, Shili Chen, Yi Chen, Jay J. Farmer, Joel A. Goldberg, Roger Hanselmann, Rongliang Lou, Alia Orbin, Adegboyega K. Oyelere, Joseph M. Salvino, Dane M. Springer, Jennifer Tran, Deping Wang, Yusheng Wu
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Publication number: 20110218194Abstract: Disclosed are compounds of the formula I or a stereoisomer, tautomer, or pharmaceutically acceptable salt or solvate thereof, wherein W is a bond, —C(?S)—, —S(O)—, —S(O)2—, —C(?O)—, —O—, —C(R6)(R7)—, —N(R5)— or —C(?N(R5))—; X is —O—, —N(R5)— or —C(R6)(R7)—; provided that when X is —O—, U is not —O—, —S(O)—, —S(O)2—, —C(?O)— or —C(?NR5)—; U is a bond, —S(O)—, —S(O)2—, —C(O)—, —O—, —P(O)(OR15)—, —C(?NR5)—, —(C(R6)(R7))b— or —N(R5)—; wherein b is 1 or 2; provided that when W is —S(O)—, —S(O)2—, —O—, or —N(R5)—, U is not —S(O)—, —S(O)2—, —O—, or —N(R5)—; provided that when X is —N(R5)— and W is —S(O)—, —S(O)2—, —O—, or —N(R5)—, then U is not a bond; and R1, R2, R3, R4, R5, R6, and R7 are as defined in the specification; and pharmaceutical compositions comprising the compounds of formula I.Type: ApplicationFiled: May 16, 2011Publication date: September 8, 2011Applicant: Schering Corporation & Pharmacopeia Drug Discovery Inc.Inventors: Zhaoning Zhu, Brian A. Mckittrick, Zhong-Yue Sun, Yuanzan C. Ye, Johannes H. Voight, Corey Strickland, Elizabeth M. Smith, Andrew Stamford, William J. Greenlee, Robert Mazzola, John Caldwell, Jared N. Cumming, Lingyan Wang, Yusheng Wu, Ulrich Iserloh, Tao Guo, Thuy X. H. Le, Kurt W. Saionz, Suresh D. Babu, Rachel C. Hunter, Michelle L. Morris, Huizhong Gu, Gang Qian, Dawit Tadesse
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Patent number: 7973067Abstract: Disclosed are compounds of the formula I or a stereoisomer, tautomer, or pharmaceutically acceptable salt or solvate thereof, wherein W is a bond, —C(?S)—, —S(O)—, —S(O)2—, —C(?O)—, —O—, —C(R6)(R7)—, —N(R5)— or —C(?N(R5))—; X is —O—, —N(R5)— or —C(R6)(R7)—; provided that when X is —O—, U is not —O—, —S(O)—, —S(O)2—, —C(?O)— or —C(?NR5)—; U is a bond, —S(O)—, —S(O)2—, —C(O)—, —O—, —P(O)(OR15)—, —C(?NR5)—, —(C(R6)(R7))b— or —N(R5)—; wherein b is 1 or 2; provided that when W is —S(O)—, —S(O)2—, —O—, or —N(R5)—, U is not —S(O)—, —S(O)2—, —O—, or —N(R5)—; provided that when X is —N(R5)— and W is —S(O)—, —S(O)2—, —O—, or —N(R5)—, then U is not a bond; and R1, R2, R3, R4, R5, R6, and R7 are as defined in the specification; and pharmaceutical compositions comprising the compounds of formula I.Type: GrantFiled: December 10, 2008Date of Patent: July 5, 2011Assignee: Schering CorporationInventors: Zhaoning Zhu, Brian McKittrick, Zhong-Yue Sun, Yuanzan C. Ye, Johannes H. Voigt, Corey Strickland, Elizabeth M. Smith, Andrew Stamford, William J. Greenlee, Robert D. Mazzola, Jr., John P. Caldwell, Jared N. Cumming, Lingyan Wang, Yusheng Wu, Ulrich Iserloh, Tao Guo, Thuy X. H. Le, Kurt W. Saionz, Suresh D. Babu, Rachel C. Hunter, Michelle L. Morris, Huizhong Gu, Gang Qian, Dawit Tadesse
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Publication number: 20110110957Abstract: In its many embodiments, the present invention provides certain 2-imino-3-methyl pyrrolo pyrimidone compounds, including compounds Formula (II): and include tautomers, steroisomers, or pharmaceutically acceptable salts or solvates of said compounds, stereoisomers, or said tautomers, wherein R2, R3, R4, R5, R6, R7, R8, and R9 are each selected independently and as defined herein. Pharmaceutical compositions comprising one or more such compounds, and methods for their preparation and use in treating pathologies associated with amyloid beta (A?) protein, including Alzheimer's Disease, are also disclosed.Type: ApplicationFiled: April 21, 2009Publication date: May 12, 2011Inventors: Andrew W. Stamford, Zhaoning Zhu, Mihirbaran Mandal, Yusheng Wu, Jared N. Cumming, Xiaoxiang Liu, Guoqing Li, Ulrich Iserloh
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Publication number: 20100292203Abstract: Disclosed are compounds of the formula I or a stereoisomer, tautomer, or pharmaceutically acceptable salt or solvate thereof, wherein W is a bond, —C(?S)—, —S(O)—, —S(O)2—, —C(?O)—, —O—, —C(R6)(R7)—, —N(R5)— or —C(?N(R5))—; X is —O—, —N(R5)— or —C(R6)(R7)—; provided that when X is —O—, U is not —O—, —S(O)—, —S(O)2—, —C(?O)— or —C(?NR5)—; U is a bond, —S(O)—, —S(O)2—, —C(O)—, —O—, —P(O)(OR15)—, —C(?NR5)—, —(C(R6)(R7))b— or —N(R5)—; wherein b is 1 or 2; provided that when W is —S(O)—, —S(O)2—, —O—, or —N(R5)—, U is not —S(O)—, —S(O)2—, —O—, or —N(R5)—; provided that when X is —N(R5)— and W is —S(O)—, —S(O)2—, —O—, or —N(R5)—, then U is not a bond; and R1, R2, R3, R4, R5, R6, and R7 are as defined in the specification; and pharmaceutical compositions comprising the compounds of formula I.Type: ApplicationFiled: January 26, 2010Publication date: November 18, 2010Inventors: Zhaoning Zhu, Brian McKittrick, Zhong-Yue Sun, Yuanzan C. Ye, Johannes H. Voigt, Corey O. Strickland, Elizabeth M. Smith, Andrew Stamford, William J. Greenlee, Robert D. Mazzola, John P. Caldwell, Jared N. Cumming, Lingyan Wang, Yusheng Wu, Ulrich Iserloh, Xiaoxiang Liu, Dawit Tadesse, Ying Huang, Guoqing Li, Jianping Pan
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Publication number: 20100234591Abstract: The present invention relates generally to the field of anti-infective, anti-proliferative, anti-inflammatory, and prokinetic agents. More particularly, the invention relates to a family of compounds having both a biaryl moiety and at least one heterocylic moiety that are useful as such agents.Type: ApplicationFiled: April 26, 2010Publication date: September 16, 2010Applicant: Rib-X Pharmaceuticals, Inc.Inventors: Jiacheng Zhou, Ashoke Bhattacharjee, Shili Chen, Yi Chen, Jay J. Farmer, Joel A. Goldberg, Roger Hanselmann, Rongliang Lou, Alia Orbin, Adegboyega K. Oyelere, Joseph M. Salvino, Dane M. Springer, Jennifer Tran, Deping Wang, Yusheng Wu
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Publication number: 20100234615Abstract: The present invention relates to processes for the preparation of triazoles. These compounds are useful as anti-infective, anti-proliferative, anti-inflammatory, and prokinetic agents.Type: ApplicationFiled: June 8, 2006Publication date: September 16, 2010Inventors: Shili Chen, Rongliang Lou, Yusheng Wu, Jiacheng Zhou, Roger Hanselmann
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Patent number: 7763609Abstract: Disclosed are compounds of the formula I or a stereoisomer, tautomer, or pharmaceutically acceptable salt or solvate thereof, wherein W is a bond, —C(?S)—, —S(O)—, —S(O)2—, —C(?O)—, —O—, —C(R6)(R7)—, —N(R5)— or —C(?N(R5))—; X is —O—, —N(R5)— or —C(R6)(R7)—; provided that when X is —O—, U is not —O—, —S(O)—, —S(O)2—, —C(?O)— or —C(?NR5)—; U is a bond, —S(O)—, —S(O)2—, —C(O)—, —O—, —P(O)(OR15)—, —C(?NR5)—, —(C(R6)(R7))b— or —N(R5)—; wherein b is 1 or 2; provided that when W is —S(O)—, —S(O)2—, —O—, or —N(R5)—, U is not —S(O)—, —S(O)2—, —O—, or —N(R5)—; provided that when X is —N(R5)— and W is —S(O)—, —S(O)2—, —O—, or —N(R5)—, then U is not a bond; and R1, R2, R3, R4, R5, R6, and R7 are as defined in the specification; and pharmaceutical compositions comprising the compounds of formula I.Type: GrantFiled: February 23, 2007Date of Patent: July 27, 2010Assignees: Schering Corporation, Pharmacopeia, LLCInventors: Zhaoning Zhu, Brian McKittrick, Zhong-Yue Sun, Yuanzan C. Ye, Johannes H. Voigt, Corey O. Strickland, Elizabeth M. Smith, Andrew Stamford, William J. Greenlee, Robert D. Mazzola, John P. Caldwell, Jared N. Cumming, Lingyan Wang, Yusheng Wu, Ulrich Iserloh, Xiaoxiang Liu, Tao Guo, Thuy X. E. Le, Kurt W. Saionz, Suresh D. Babu, Rachael C. Hunter, Michelle L. Morris, Huizhong Gu, Gang Qian, Dawit Tadesse, Ying Huang, Guoqing Li, Jianping Pan, Jeffrey A. Misiaszek, Gaifa Lai, Jingqi Duo, Chuanxing Qu, Yuefei Shao
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Publication number: 20100152138Abstract: Disclosed are compounds of the formula or a pharmaceutically acceptable salt or solvate thereof, wherein R1 is R is —C(O)—N(R27)(R28) or and the remaining variables are as defined in the specification. Also disclosed are pharmaceutical compositions comprising the compounds of formula I. Also disclosed are methods of treating cognitive or neurodegenerative diseases such as Alzheimer's disease. Also disclosed are pharmaceutical compositions and methods of treating cognitive or neurodegenerative diseases comprising the compounds of formula I in combination with a ?-secretase inhibitor other than those of formula I, an HMG-CoA reductase inhibitor, a gamma-secretase inhibitor, a non-steroidal anti-inflammatory agent, an N-methyl-D-aspartate receptor antagonist, a cholinesterase inhibitor or an anti-amyloid antibody.Type: ApplicationFiled: December 18, 2009Publication date: June 17, 2010Inventors: Jared N. Cumming, Ulrich Iserloh, Andrew Stamford, Corey Strickland, Johannes H. Voigt, Yusheng Wu, Ying Huang, Yan Xia, Samuel Chackalamannil, Tao Guo, Douglas W. Hobbs, Thuy X.H. Le, Jeffrey F. Lowrie, Kurt W. Saionz, Suresh D. Babu
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Patent number: 7705026Abstract: The present invention relates generally to the field of anti-infective, anti-proliferative, anti-inflammatory, and prokinetic agents. More particularly, the invention relates to a family of compounds having both a biaryl moiety and at least one heterocylic moiety that are useful as such agents.Type: GrantFiled: November 21, 2008Date of Patent: April 27, 2010Assignee: Rib-X Pharmaceuticals, Inc.Inventors: Jiacheng Zhou, Ashoke Bhattacharjee, Shili Chen, Yi Chen, Jay J. Farmer, Joel A. Goldberg, Roger Hanselmann, Rongliang Lou, Alia Orbin, Adegboyega K. Oyelere, Joseph M. Salvino, Dane M. Springer, Jennifer Tran, Deping Wang, Yusheng Wu
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Patent number: 7700603Abstract: Disclosed are compounds of the formula I or a stereoisomer, tautomer, or pharmaceutically acceptable salt or solvate thereof, wherein W is a bond, —C(?S)—, —S(O)—, —S(O)2—, —C(?O)—, —O—, —C(R6)(R7)—, —N(R5)— or —C(?N(R5))—; X is —O—, —N(R5)— or —C(R6)(R7)—; provided that when X is —O—, U is not —O—, —S(O)—, —S(O)2—, —C(?O)— or —C(?NR5)—; U is a bond, —S(O)—, —S(O)2—, —C(O)—, —O—, —P(O)(OR15)—, —C(?NR5)—, —(C(R6)(R7))b— or —N(R5)—; wherein b is 1 or 2; provided that when W is —S(O)—, —S(O)2—, —O—, or —N(R5)—, U is not —S(O)—, —S(O)2—, —O—, or —N(R5)—; provided that when X is —N(R5)— and W is —S(O)—, —S(O)2—, —O—, or —N(R5)—, then U is not a bond; and R1, R2, R3, R4, R5, R6, and R7 are as defined in the specification; and pharmaceutical compositions comprising the compounds of formula I.Type: GrantFiled: June 9, 2005Date of Patent: April 20, 2010Assignee: Schering CorporationInventors: Zhaoning Zhu, Brian A McKittrick, Zhong-Yue Sun, Yuanzan C Ye, Johannes H Voigt, Corey Strickland, Elizabeth M. Smith, Andrew Stamford, William J. Greenlee, Robert Mazzola, John Caldwell, Jared N. Cumming, Lingyan Wang, Yusheng Wu, Ulrich Iserloh, Tao Guo, Thuy X. H. Le, Kurt W. Saionz, Suresh D. Babu, Rachael C. Hunter, Michelle L. Morris, Gang Qian, Dawit Tadesse
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Patent number: 7662816Abstract: Disclosed are compounds of the formula or a pharmaceutically acceptable salt or solvate thereof, wherein R1 is R is —C(O)—N(R27)(R28) or and the remaining variables are as defined in the specification. Also disclosed are pharmaceutical compositions comprising the compounds of formula I. Also disclosed are methods of treating cognitive or neurodegenerative diseases such as Alzheimer's disease. Also disclosed are pharmaceutical compositions and methods of treating cognitive or neurodegenerative diseases comprising the compounds of formula I in combination with a ?-secretase inhibitor other than those of formula I, an HMG-CoA reductase inhibitor, a gamma-secretase inhibitor, a non-steroidal anti-inflammatory agent, an N-methyl-D-aspartate receptor antagonist, a cholinesterase inhibitor or an anti-amyloid antibody.Type: GrantFiled: August 4, 2004Date of Patent: February 16, 2010Assignee: Schering CorporationInventors: Jared N. Cumming, Ulrich Iserloh, Andrew Stamford, Corey Strickland, Johannes H. Voigt, Yusheng Wu, Ying Huang, Yan Xia, Samuel Chackalamannil, Tao Guo, Douglas W. Hobbs, Thuy X. H. Le, Jeffrey F. Lowrie, Kurt W. Saionz, Suresh D. Babu
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Publication number: 20100022772Abstract: The present invention relates to processes for the preparation of biaryl oxazolidinones. These compounds are useful as anti-infective, anti-proliferative, anti-inflammatory, and prokinetic agents.Type: ApplicationFiled: July 28, 2004Publication date: January 28, 2010Applicant: RIB-X PHARMACEUTICALS, INC.Inventors: Yusheng Wu, Chen Shili, Yi Chen, Roger Hanselmann, Rongliang Lou, Jiacheng Zhou
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Publication number: 20090312341Abstract: Disclosed are novel compounds of the formula or a pharmaceutically acceptable salt or solvate thereof, wherein R1 is X is —O—, —C(R14)2— or —N(R)—; Z is —C(R14)2— or —N(R)—; t is 0, 1, 2 or 3; each R and R2 is independently H, alkyl, cycloalkyl, cycloalkylalkyl, aryl, heteroaryl, heterocycloalkyl, arylalkyl, heteroarylalkyl, heterocycloalkylalkyl, alkenyl or alkynyl; each R14 is H, alkyl, alkenyl, alkynyl, halo, —CN, haloalkyl, cycloalkyl, cycloalkylalkyl, aryl, heteroaryl, heterocycloalkyl, arylalkyl, heteroarylalkyl, heterocycloalkylalkyl, —OR35, —N(R24) (R25) or —SR35; R41 is alkyl, cycloalkyl, —SO2(alkyl), —C(O)-alkyl, —C(O)-cycloalkyl or -alkyl-NH—C(O)CH3; and the remaining variables are as defined in the specification. Also disclosed are pharmaceutical compositions comprising the compounds of formula I and methods of treating cognitive or neurodegenerative diseases with compounds of formula I.Type: ApplicationFiled: June 24, 2009Publication date: December 17, 2009Inventors: Jared N. Cumming, Ying Huang, Guoqing Li, Ulrich Iserloh, Andrew Stamford, Corey Strickland, Johannes H. Voigt, Yusheng Wu, Jianping Pan, Tao Guo, Douglas W. Hobbs, Thuy X. H. Le, Jeffrey F. Lowrie
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Publication number: 20090306047Abstract: Disclosed are compounds of the formula I or a stereoisomer, tautomer, or pharmaceutically acceptable salt or solvate thereof, wherein W is a bond, —C(?S)—, —S(O)—, —S(O)2—, —C(?O)—, —O—, —C(R6)(R7)—, —N(R5)— or —C(?N(R5))—; X is —O—, —N(R5)— or —C(R6)(R7)—; provided that when X is —O—, U is not —O—, —S(O)—, —S(O)2—, —C(?O)— or —C(?NR5)—; U is a bond, —S(O)—, —S(O)2—, —C(O)—, —O—, —P(O)(OR15)—, —C(?NR5)—, —(C(R6)(R7))b— or —N(R5)—; wherein b is 1 or 2; provided that when W is —S(O)—, —S(O)2—, —O—, or —N(R5)—, U is not —S(O)—, —S(O)2—, —O—, or —N(R5)—; provided that when X is —N(R5)— and W is —S(O)—, —S(O)2—, —O—, or —N(R5)—, then U is not a bond; and R1, R2, R3, R4, R5, R6, and R7 are as defined in the specification; and pharmaceutical compositions comprising the compounds of formula I.Type: ApplicationFiled: June 8, 2009Publication date: December 10, 2009Inventors: Zhaoning Zhu, Brian McKittrick, Zhong-Yue Sun, Yuanzan C. Ye, Johannes H. Voigt, Corey Strickland, Elizabeth M. Smith, Andrew Stamford, William J. Greenlee, Robert Mazzola, John Caldwell, Jared N. Cumming, Lingyan Wang, Yusheng Wu, Ulrich Iserloh, Tao Guo, Thuy X.H. Le, Kurt W. Saionz, Suresh D. Babu, Rachael C. Hunter
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Publication number: 20090258868Abstract: Disclosed are compounds of the formula I or a stereoisomer, tautomer, or pharmaceutically acceptable salt or solvate thereof, wherein W is a bond, —C(?S)—, —S(O)—, —S(O)2—, —C(?O)—, —O—, —C(R6)(R7)—, —N(R5)— or —C(?N(R5))—; X is —O—, —N(R5)— or —C(R6)(R7)—; provided that when X is —O—, U is not —O—, —S(O)—, —S(O)2—, —C(?O)— or —C(?NR5)—; U is a bond, —S(O)—, —S(O)2—, —C(O)—, —O—, —P(O)(OR15)—, —C(?NR5)—, —(C(R6)(R7))b— or —N(R5)—; wherein b is 1 or 2; provided that when W is —S(O)—, —S(O)2—, —O—, or —N(R5)—, U is not —S(O)—, —S(O)2—, —O—, or —N(R5)—; provided that when X is —N(R5)— and W is —S(O)—, —S(O)2—, —O—, or —N(R5)—, then U is not a bond; and R1, R2, R3, R4, R5, R6, and R7 are as defined in the specification; and pharmaceutical compositions comprising the compounds of formula I.Type: ApplicationFiled: December 10, 2008Publication date: October 15, 2009Inventors: Zhaoning Zhu, Brian A. McKittrick, Zhong-Yue Sun, Yuanzan C. Ye, Johannes H. Voigt, Corey Strickland, Elizabeth M. Smith, Andrew Stamford, William J. Greenlee, Robert Mazzola, John Caldwell, Jared N. Cumming, Lingyan Wang, Yusheng Wu, Ulrich Iserloh, Tao Guo, Thuy X.H. Le, Kurt W. Saionz, Suresh D. Babu, Rachael C. Hunter, Michelle L. Morris, Huizhong Gu, Gang Qian, Dawit Tadesse
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Patent number: 7598250Abstract: Disclosed are novel compounds of the formula or a pharmaceutically acceptable salt or solvate thereof, wherein R1 is X is —O—, —C(R14)2— or —N(R)—; Z is —C(R14)2— or —N(R)—; t is 0, 1, 2 or 3; each R and R2 is independently H, alkyl, cycloalkyl, cycloalkylalkyl, aryl, heteroaryl, heterocycloalkyl, arylalkyl, heteroarylalkyl, heterocycloalkylalkyl, alkenyl or alkynyl; each R14 is H, alkyl, alkenyl, alkynyl, halo, —CN, haloalkyl, cycloalkyl, cycloalkylalkyl, aryl, heteroaryl, heterocycloalkyl, arylalkyl, heteroarylalkyl, heterocycloalkylalkyl, —OR35, —N(R24)(R25) or —SR35; R41 is alkyl, cycloalkyl, —SO2(alkyl), —C(O)-alkyl, —C(O)-cycloalkyl or -alkyl-NH—C(O)CH3; and the remaining variables are as defined in the specification. Also disclosed are pharmaceutical compositions comprising the compounds of formula I and methods of treating cognitive or neurodegenerative diseases with compounds of formula I.Type: GrantFiled: August 4, 2004Date of Patent: October 6, 2009Assignee: Schering CorporationInventors: Jared N. Cumming, Ying Huang, Guoqing Li, Ulrich Iserloh, Andrew Stamford, Corey Strickland, Johannes H. Voigt, Yusheng Wu, Jianping Pan, Tao Guo, Douglas W. Hobbs, Thuy X. H. Le, Jeffrey F. Lowrie