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).
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Patent number: 8541609Abstract: 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: GrantFiled: April 19, 2012Date of Patent: September 24, 2013Assignee: Cedarburg Pharmaceuticals, Inc.Inventors: Kevin Kunnen, Nathan W. Stehle, Scot W. Weis, John M. Pascone, Richard J. Pariza, Scott G. Van Ornum, Paul Zizelman
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Publication number: 20120209016Abstract: 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: ApplicationFiled: April 19, 2012Publication date: August 16, 2012Inventors: Kevin Kunnen, Nathan W. Stehle, Scot W. Weis, John M. Pascone, Richard J. Pariza, Scott G. Van Ornum, Paul Zizelman
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Patent number: 8183401Abstract: 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: GrantFiled: January 14, 2005Date of Patent: May 22, 2012Assignee: Cedarburg Pharmaceuticals, Inc.Inventors: Kevin Kunnen, Nathan W. Stehle, Scot W. Weis, John M. Pascone, Richard J Pariza, Scott G. Van Ornum, Paul Zizelman
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Publication number: 20080234505Abstract: 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: ApplicationFiled: January 14, 2005Publication date: September 25, 2008Applicant: CEDARBURG PHARMACEUTICALS, INCInventors: Kevin Kunnen, Nathan W. Stehle, Scot W. Weis, John M. Pascone, Richard J. Pariza, Scott G. Van Ornum, Paul Zizelman
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Patent number: 7119203Abstract: 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: GrantFiled: April 25, 2003Date of Patent: October 10, 2006Assignee: Pharmacia CorporationInventors: 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
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Patent number: 6890937Abstract: 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: GrantFiled: January 7, 2003Date of Patent: May 10, 2005Assignee: Pharmacia CorporationInventors: 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
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Publication number: 20040235818Abstract: 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: ApplicationFiled: December 29, 2003Publication date: November 25, 2004Inventors: 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
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Publication number: 20040209914Abstract: 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: ApplicationFiled: December 8, 2003Publication date: October 21, 2004Inventors: 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
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Publication number: 20040142978Abstract: 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: ApplicationFiled: December 5, 2003Publication date: July 22, 2004Applicant: Pharmacia CorporationInventors: David R. Anderson, Nathan W. Stehle, Stephen A. Kolodziej, Emily J. Reinhard, Len F. Lee
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Publication number: 20040127519Abstract: 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: ApplicationFiled: December 5, 2003Publication date: July 1, 2004Applicant: Pharmacia CorporationInventors: Emily J. Reinhard, Stephen A. Kolodziej, David R. Anderson, Nathan W. Stehle, William F. Vernier, Len F. Lee, Shridhar G. Hegde
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Patent number: 6750228Abstract: 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: GrantFiled: May 12, 2000Date of Patent: June 15, 2004Assignee: Pharmacia CorporationInventors: 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
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Patent number: 6750233Abstract: 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: GrantFiled: September 17, 2001Date of Patent: June 15, 2004Assignee: Pharmacia CorporationInventors: 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
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Publication number: 20040048852Abstract: 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: ApplicationFiled: January 7, 2003Publication date: March 11, 2004Inventors: 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
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Patent number: 6683093Abstract: 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: GrantFiled: November 21, 2001Date of Patent: January 27, 2004Assignee: Pharmacia CorporationInventors: 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
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Publication number: 20030073718Abstract: 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: ApplicationFiled: November 21, 2001Publication date: April 17, 2003Inventors: 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
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Publication number: 20020177588Abstract: 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: ApplicationFiled: September 17, 2001Publication date: November 28, 2002Inventors: 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