Patents by Inventor Nathan W. Stehle

Nathan W. Stehle 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: 8541609
    Abstract: A method is provided for preparing an aromatase inhibitor of formula (I) wherein each of R1, R2, R3, R4, independently, is hydrogen, halogen or C1-C6 alkyl. In one form, the aromatase inhibitor is exemestane wherein each of R1, R2, R3, R4 is hydrogen. In the method, a compound of formula (II) wherein R1, R2, R3, R4 are as defined above and R is alkylene, is reacted with a deprotonating agent and a compound of the formula R5SO2X wherein R5 is C1-C5 alkyl and X is halogen so as to obtain a compound of formula (III) wherein R1, R2, R3, R4, R5 are as defined above. The compound of Formula (III) is then reacted with a base to form an aromatase inhibitor of formula (I).
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: September 24, 2013
    Assignee: Cedarburg Pharmaceuticals, Inc.
    Inventors: Kevin Kunnen, Nathan W. Stehle, Scot W. Weis, John M. Pascone, Richard J. Pariza, Scott G. Van Ornum, Paul Zizelman
  • Publication number: 20120209016
    Abstract: A method is provided for preparing an aromatase inhibitor of formula (I) wherein each of R1, R2, R3, R4, independently, is hydrogen, halogen or C1-C6 alkyl. In one form, the aromatase inhibitor is exemestane wherein each of R1, R2, R3, R4 is hydrogen. In the method, a compound of formula (II) wherein R1, R2, R3, R4 are as defined above and R is alkylene, is reacted with a deprotonating agent and a compound of the formula R5SO2X wherein R5 is C1-C5 alkyl and X is halogen so as to obtain a compound of formula (III) wherein R1, R2, R3, R4, R5 are as defined above. The compound of Formula (III) is then reacted with a base to form an aromatase inhibitor of formula (I).
    Type: Application
    Filed: April 19, 2012
    Publication date: August 16, 2012
    Inventors: Kevin Kunnen, Nathan W. Stehle, Scot W. Weis, John M. Pascone, Richard J. Pariza, Scott G. Van Ornum, Paul Zizelman
  • Patent number: 8183401
    Abstract: A method is provided for preparing an aromatase inhibitor of formula (I) wherein each of R1, R2, R3, R4, independently, is hydrogen, halogen or C1-C6 alkyl. In one form, the aromatase inhibitor is exemestane wherein each of R1, R2, R3, R4 is hydrogen. In the method, a compound of formula (II) wherein R1, R2, R3, R4 are as defined above and R is alkylene, is reacted with a deprotonating agent and a compound of the formula R5SO2X wherein R5 is C1-C5 alkyl and X is halogen so as to obtain a compound of formula (III) wherein R1, R2, R3, R4, R5 are as defined above. The compound of Formula (III) is then reacted with a base to form an aromatase inhibitor of formula (I).
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: May 22, 2012
    Assignee: Cedarburg Pharmaceuticals, Inc.
    Inventors: Kevin Kunnen, Nathan W. Stehle, Scot W. Weis, John M. Pascone, Richard J Pariza, Scott G. Van Ornum, Paul Zizelman
  • Publication number: 20080234505
    Abstract: A method is provided for preparing an aromatase inhibitor of formula (I) wherein each of R1, R2, R3, R4, independently, is hydrogen, halogen or C1-C6 alkyl. In one form, the aromatase inhibitor is exemestane wherein each of R1, R2, R3, R4 is hydrogen. In the method, a compound of formula (II) wherein R1, R2, R3, R4 are as defined above and R is alkylene, is reacted with a deprotonating agent and a compound of the formula R5SO2X wherein R5 is C1-C5 alkyl and X is halogen so as to obtain a compound of formula (III) wherein R1, R2, R3, R4, R5 are as defined above. The compound of Formula (III) is then reacted with a base to form an aromatase inhibitor of formula (I).
    Type: Application
    Filed: January 14, 2005
    Publication date: September 25, 2008
    Applicant: CEDARBURG PHARMACEUTICALS, INC
    Inventors: Kevin Kunnen, Nathan W. Stehle, Scot W. Weis, John M. Pascone, Richard J. Pariza, Scott G. Van Ornum, Paul Zizelman
  • Patent number: 7119203
    Abstract: This invention is directed generally to proteinase (also known as “protease”) inhibitors, and, more particularly, to piperidinyl- and piperazinyl-sulfonylmethyl hydroxamic acids that, inter alia, inhibit matrix metalloproteinase (also known as “matrix metalloprotease” or “MMP”) activity and/or aggrecanase activity. Such hydroxamic acids generally correspond in structure to the following formula: (wherein A1, A2, Y, E1, E2, E3, and Rx are as defined in this specification), and further include salts of such compounds. This invention also is directed to compositions of such hydroxamic acids, intermediates for the syntheses of such hydroxamic acids, methods for making such hydroxamic acids, and methods for treating conditions (particularly pathological conditions) associated with MMP activity and/or aggrecanase activity.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: October 10, 2006
    Assignee: Pharmacia Corporation
    Inventors: Thomas E. Barta, Daniel P. Becker, Louis J. Bedell, Terri L. Boehm, David L. Brown, Jeffery N. Carroll, Yiyuan Chen, Yvette M. Fobian, John N. Freskos, Alan F. Gasiecki, Margaret L. Grapperhaus, Robert M. Heintz, Susan L. Hockerman, Darren J. Kassab, Ish K. Khanna, Stephen A. Kolodziej, Mark A. Massa, Joseph J. McDonald, Brent V. Mischke, Deborah A. Mischke, Patrick B. Mullins, Mark A. Nagy, Monica B. Norton, Joseph G. Rico, Michelle A. Schmidt, Nathan W. Stehle, John J. Talley, William F. Vernier, Clara I. Villamil, Lijuan J. Wang, Thomas A. Wynn
  • Patent number: 6890937
    Abstract: A treatment process is disclosed that comprises administering an effective amount of an aromatic sulfone hydroxamic acid that exhibits excellent inhibitory activity of one or more matrix metalloprotease (MMP) enzymes, such as MMP-2, MMP-9, and MMP-13, while exhibiting substantially less inhibition at least of MMP-1 to a host having a condition associated with pathological matrix metalloprotease activity. The administered enzyme inhibitor corresponds in structure to formula (I), below, or a pharmaceutically acceptable salt thereof, wherein R1 and R2 are both hydrido or R1 and R2 together with the atoms to which they are bonded form a 5- to 8-membered ring containing one, two, or three heteroatoms in the ring that are oxygen, sulfur, or nitrogen. R3 in formula (I) is an optionally substituted aryl or optionally substituted heteroaryl radical.
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: May 10, 2005
    Assignee: Pharmacia Corporation
    Inventors: Thomas E. Barta, Daniel P. Becker, Louis J. Bedell, Terri L. Boehm, Jeffery N. Carroll, Gary A. DeCrezcenzo, Theresa R. Fletcher, John N. Freskos, Daniel P. Getman, Gunnar J. Hanson, Susan L. Hockerman, Carol P. Howard, Stephen A. Kolodziej, Madeleine H. Li, Joseph J. McDonald, Deborah A. Mischke, Patrick B. Mullins, Joseph G. Rico, Nathan W. Stehle, Clara I. Villamil
  • Publication number: 20040235818
    Abstract: A treatment process is disclosed that comprises administering an effective amount of an aromatic sulfone hydroxamic acid that exhibits excellent inhibitory activity of one or more matrix metalloprotease (MMP) enzymes, such as MMP-2, MMP-9 and MMP-13, while exhibiting substantially less inhibition at least of MMP-1 to a host having a condition associated with pathological matrix metalloprotease activity. Also disclosed are metalloprotease inhibitor compounds having those selective activities, processes for manufacture of such compounds and pharmaceutical compositions using an inhibitor.
    Type: Application
    Filed: December 29, 2003
    Publication date: November 25, 2004
    Inventors: Thomas E. Barta, Daniel P. Becker, Louis J. Bedell, Terri L. Boehm, Jeffery N. Carroll, Gary A. DeCrescenzo, Yvette M. Fobian, John N. Freskos, Daniel P. Getman, Susan L. Hockerman, Carol P. Howard, Stephen A. Kolodziej, Madeleine H. Li, Joseph J. McDonald, Deborah A. Mischke, Joseph G. Rico, Nathan W. Stehle, Michael B. Tollefson, William F. Vernier, Clara I. Villamil
  • Publication number: 20040209914
    Abstract: This invention is directed to aromatic sulfone hydroxamates (also known as aromatic sulfone hydroxamic acids) and salts thereof that, inter alia, tend to inhibit matrix metalloproteinase (also known as matrix metalloprotease or MMP) activity and/or aggrecanase activity. This invention also is directed to a treatment method that comprises administering such a compound or salt in an MMP-inhibiting and/or aggrecanase-inhibiting effective amount to an animal, particularly a mammal having (or disposed to having) a pathological condition associated with MMP activity and/or aggrecanase activity.
    Type: Application
    Filed: December 8, 2003
    Publication date: October 21, 2004
    Inventors: Thomas E. Barta, Daniel P. Becker, Louis J. Bedell, Terri L. Boehm, Jeffery N. Carroll, Gary A. DeCrescenzo, Yvette M. Fobian, John N. Freskos, Daniel P. Getman, Susan L. Hockerman, Carol P. Howard, Darren J. Kassab, Stephen A. Kolodziej, Madeleine H. Li, Joseph J. McDonald, Deborah A. Mischke, Joseph G. Rico, Nathan W. Stehle, Michael B. Tollefson, William F. Vernier, Clara I. Villamil
  • Publication number: 20040142978
    Abstract: Aminocyanopyridine compounds are described which can inhibit mitogen activated protein kinase-activated protein kinase-2. Pharmaceutical compositions and kits that contain these compounds are also described.
    Type: Application
    Filed: December 5, 2003
    Publication date: July 22, 2004
    Applicant: Pharmacia Corporation
    Inventors: David R. Anderson, Nathan W. Stehle, Stephen A. Kolodziej, Emily J. Reinhard, Len F. Lee
  • Publication number: 20040127519
    Abstract: A method is described for inhibiting mitogen activated protein kinase-activated protein kinase-2 in a subject in need of such inhibition, where the method involves administering to the subject an anminocyanopyridine MK-2 inhibiting compound, or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: December 5, 2003
    Publication date: July 1, 2004
    Applicant: Pharmacia Corporation
    Inventors: Emily J. Reinhard, Stephen A. Kolodziej, David R. Anderson, Nathan W. Stehle, William F. Vernier, Len F. Lee, Shridhar G. Hegde
  • Patent number: 6750228
    Abstract: A treatment process is disclosed that comprises administering an effective amount of an aromatic sulfone hydroxamic acid that exhibits excellent inhibitory activity of one or more matrix metalloprotease (MMP) enzymes, such as MMP-2, MMP-9 and MMP-13, while exhibiting substantially less inhibition at least of MMP-1 to a host having a condition associated with pathological matrix metalloprotease activity. Also disclosed are metalloprotease inhibitor compounds having those selective activities, processes for manufacture of such compounds and pharmaceutical compositions using an inhibitor.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: June 15, 2004
    Assignee: Pharmacia Corporation
    Inventors: Thomas E Barta, Daniel P Becker, Louis J Bedell, Terri L Boehm, Jeffrey N Carroll, Gary A DeCrescenzo, Yvette M Fobian, John N Freskos, Daniel P Getman, Joseph J McDonald, Madeleine H Li, Susan L Hockerman, Susan C Howard, Steve A Kolodziej, Deborah A Mischke, Joseph G Rico, Nathan W Stehle, Michael B Tollefson, William F Vernier, Clara I Villamil
  • Patent number: 6750233
    Abstract: A treatment process is disclosed that comprises administering an effective amount of an aromatic sulfone hydroxamic acid that exhibits excellent inhibitory activity of one or more matrix metalloprotease (MMP) enzymes, such as MMP-2, MMP-9 and MMP-13, while exhibiting substantially less inhibition at least of MMP-1 to a host having a condition associated with pathological matrix metalloprotease activity. Also disclosed are metalloprotease inhibitor compounds having those selective activities, processes for manufacture of such compounds and pharmaceutical compositions using an inhibitor.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: June 15, 2004
    Assignee: Pharmacia Corporation
    Inventors: Thomas E. Barta, Daniel P. Becker, Louis J. Bedell, Terri L. Boehm, Jeffery N. Carroll, Gary A. DeCrescenzo, Yvette M. Fobian, John N. Freskos, Daniel P. Getman, Joseph J. McDonald, Susan L. Hockerman, Susan C. Howard, Steve A. Kolodziej, Hui Li, Deborah A. Mischke, Joseph G. Rico, Nathan W. Stehle, Michael B. Tollefson, William F. Vernier, Clara I. Villamil
  • Publication number: 20040048852
    Abstract: A treatment process is disclosed that comprises administering an effective amount of an aromatic sulfone hydroxamic acid that exhibits excellent inhibitory activity of one or more matrix metalloprotease (MMP) enzymes, such as MMP-2, MMP-9, and MMP-13, while exhibiting substantially less inhibition at least of MMP-1 to a host having a condition associated with pathological matrix metalloprotease activity. The administered enzyme inhibitor corresponds in structure to formula (I), below, or a pharmaceutically acceptable salt thereof, wherein R1 and R2 are both hydrido or R1 and R2 together with the atoms to which they are bonded form a 5- to 8-membered ring containing one, two, or three heteroatoms in the ring that are oxygen, sulfur, or nitrogen. R3 in formula (I) is an optionally substituted aryl or optionally substituted heteroaryl radical.
    Type: Application
    Filed: January 7, 2003
    Publication date: March 11, 2004
    Inventors: Thomas E. Barta, Daniel P. Becker, Terri L. Boehm, Gary A. DeCrezcenzo, John N. Freskos, Daniel P. Getman, Joseph J. McDonald, Clara I. Villamil, Louis John Bedell, Jeffery N. Carroll, Theresa R. Fletcher, Susan Landis Hockerman, Stephen A. Kolodziej, Madeleine H. Li, Deborah A. Mischke, Patrick B. Mullins, Carol Pearcy Howard, Joseph Gerace Rico, Nathan W. Stehle
  • Patent number: 6683093
    Abstract: This invention is directed to aromatic sulfone hydroxamates (also known as aromatic sulfone hydroxamic acids) and salts thereof that, inter alia, tend to inhibit matrix metalloproteinase (also known as matrix metalloprotease or MMP) activity and/or aggrecanase activity. This invention also is directed to a treatment method that comprises administering such a compound or salt in an MMP-inhibiting and/or aggrecanase-inhibiting effective amount to an animal, particularly a mammal having (or disposed to having) a pathological condition associated with MMP activity and/or aggrecanase activity.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: January 27, 2004
    Assignee: Pharmacia Corporation
    Inventors: Thomas E. Barta, Daniel P. Becker, Louis J. Bedell, Terri L. Boehm, Jeffery N. Carroll, Gary A. DeCrescenzo, Yvette M. Fobian, John N. Freskos, Daniel P. Getman, Joseph J. McDonald, Madeleine H. Li, Susan L. Hockerman, Carol Pearcy Howard, Steve A. Kolodziej, Deborah A. Mischke, Joseph G. Rico, Nathan W. Stehle, Michael B. Tollefson, William F. Vernier, Clara I. Villamil, Darren J. Kassab
  • Publication number: 20030073718
    Abstract: This invention is directed to aromatic sulfone hydroxamates (also known as aromatic sulfone hydroxamic acids) and salts thereof that, inter alia, tend to inhibit matrix metalloproteinase (also known as matrix metalloprotease or MMP) activity and/or aggrecanase activity. This invention also is directed to a treatment method that comprises administering such a compound or salt in an MMP-inhibiting and/or aggrecanase-inhibiting effective amount to an animal, particularly a mammal having (or disposed to having) a pathological condition associated with MMP activity and/or aggrecanase activity.
    Type: Application
    Filed: November 21, 2001
    Publication date: April 17, 2003
    Inventors: Thomas E. Barta, Daniel P. Becker, Louis J. Bedell, Terri L. Boehm, Jeffery N. Carroll, Gary A. DeCrescenzo, Yvette M. Fobian, John N. Freskos, Daniel P. Getman, Joseph J. McDonald, Madeleine H. Li, Susan L. Hockerman, Carol Pearcy Howard, Steve A. Kolodziej, Deborah A. Mischke, Joseph G. Rico, Nathan W. Stehle, Michael B. Tollefson, William F. Vernier, Clara I. Villamil, Darren J. Kassab
  • Publication number: 20020177588
    Abstract: A treatment process is disclosed that comprises administering an effective amount of an aromatic sulfone hydroxamic acid that exhibits excellent inhibitory activity of one or more matrix metalloprotease (MMP) enzymes, such as MMP-2, MMP-9 and MMP-13, while exhibiting substantially less inhibition at least of MMP-1 to a host having a condition associated with pathological matrix metalloprotease activity. Also disclosed are metalloprotease inhibitor compounds having those selective activities, processes for manufacture of such compounds and pharmaceutical compositions using an inhibitor.
    Type: Application
    Filed: September 17, 2001
    Publication date: November 28, 2002
    Inventors: Thomas E. Barta, Daniel P. Becker, Louis J. Bedell, Terri L. Boehm, Jeffery N. Carroll, Gary A. DeCrescenzo, Yvette M. Fobian, John N. Freskos, Daniel P. Getman, Joseph J. McDonald, Gunnar J. Hanson, Susan L. Hockerman, Susan C. Howard, Steve A. Kolodziej, Hui Li, Deborah A. Mischke, Joseph G. Rico, Nathan W. Stehle, Michael B. Tollefson, William F. Vernier, Clara I. Villamil