Patents by Inventor Sean T. Nugent

Sean T. Nugent 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: 5981580
    Abstract: Novel derivatives of fatty acid analogs that have from one to three heteroatoms in the fatty acid moiety which can be oxygen, sulfur or nitrogen, are disclosed in which the carboxy-terminus has been modified to form various amides, esters, ketones, alcohols, alcohol esters and nitrites thereof, and are useful as substrates for N-myristoyltransferase (NMT) and/or its acyl coenzyme, as anti-viral and anti-fungal agents or pro-drugs of such agents.
    Type: Grant
    Filed: October 20, 1998
    Date of Patent: November 9, 1999
    Assignee: G. D. Searle & Co.
    Inventors: Sean T. Nugent, Richard A. Mueller
  • Patent number: 5952377
    Abstract: Novel derivatives of fatty acid analogs that have from one to three heteroatoms in the fatty acid moiety which can be oxygen, sulfur or nitrogen, are disclosed in which the carboxy-terminus has been modified to form various amides, esters, ketones, alcohols, alcohol esters and nitriles thereof, and are useful as substrates for N-myristoyltransferase (NMT) and/or its acyl coenzyme, as anti-viral and anti-fungal agents or pro-drugs of such agents.
    Type: Grant
    Filed: October 20, 1998
    Date of Patent: September 14, 1999
    Assignee: G. D. Searle & Co.
    Inventors: Sean T. Nugent, Richard A. Mueller
  • Patent number: 5929110
    Abstract: Novel derivatives of fatty acid analogs that have from one to three heteroatoms in the fatty acid moiety which can be oxygen, sulfur or nitrogen, are disclosed in which the carboxy-terminus has been modified to form various amides, esters, ketones, alcohols, alcohol esters and nitriles thereof.These compounds are useful as substrates for N-myristoyltransferase (NMT) and/or its acyl coenzyme, and as anti-viral and anti-fungal agents or pro-drugs of such agents. Illustrative of the disclosed compounds are fatty acid amino acid analogs of the structure ##STR1## in which X is the ethyl or t-butyl ester of an amino acid such as Gly, L-Ala, L-Ile, L-Phe, L-Trp, L-Thr or an amide such as NHCH.sub.2 C.sub.6 H.sub.5 or NH(CH.sub.2).sub.2 C.sub.6 H.sub.5.
    Type: Grant
    Filed: October 20, 1998
    Date of Patent: July 27, 1999
    Assignee: G. D. Searle & Co.
    Inventors: Sean T. Nugent, Richard A. Mueller
  • Patent number: 5859052
    Abstract: Novel derivatives of fatty acid analogs that have from one to three heteroatoms in the fatty acid moiety which can be oxygen, sulfur or nitrogen, are disclosed in which the carboxy-terminus has been modified to form various amides, esters, ketones, alcohols, alcohol esters and nitrites thereof.These compounds are useful as substrates for N-myristoyltransferase (NMT) and/or its acyl coenzyme, and as anti-viral and anti-fungal agents or pro-drugs of such agents. Illustrative of the disclosed compounds are fatty acid amino acid analogs of the structure ##STR1## in which x is the ethyl or t-butyl ester of an amino acid such as Gly, L-Ala, L-Ile, L-Phe, L-Trp, L-Thr or an amide such as NHCH.sub.2 C.sub.6 H.sub.5 or NH(CH.sub.2).sub.2 C.sub.6 H.sub.5.
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: January 12, 1999
    Assignee: G. D. Searle & Co.
    Inventors: Sean T. Nugent, Richard A. Mueller
  • Patent number: 5744631
    Abstract: Novel derivatives of fatty acid analogs that have from one to three heteroatoms in the fatty acid moiety which can be oxygen, sulfur or nitrogen, are disclosed in which the carboxy-terminus has been modified to form various amides, esters, ketones, alcohols, alcohol esters and nitriles thereof.These compounds are useful as substrates for N-myristoyltransferase (NMT) and/or its acyl coenzyme, and as anti-viral and anti-fungal agents or pro-drugs of such agents. Illustrative of the disclosed compounds are fatty acid amino acid analogs of the structure ##STR1## in which X is the ethyl or t-butyl ester of an amino acid such as Gly, L-Ala, L-Ile, L-Phe, L-Trp, L-Thr or an amide such as NHCH.sub.2 C.sub.6 H.sub.5 or NH(CH.sub.2).sub.2 C.sub.6 H.sub.5.
    Type: Grant
    Filed: November 4, 1996
    Date of Patent: April 28, 1998
    Assignee: G.D. Searle & Co.
    Inventors: Sean T. Nugent, Richard A. Mueller
  • Patent number: 5719290
    Abstract: Novel derivatives of fatty acid analogs that have from one to three heteroatoms in the fatty acid moiety which can be oxygen, sulfur or nitrogen, are disclosed in which the carboxy-terminus has been modified to form various amides, esters, ketones, alcohols, alcohol esters and nitriles thereof. These compounds are useful as substrates for N-myristoyltransferase (NMT) and/or its acyl coenzyme, and as anti-viral and anti-fungal agents or pro-drugs of such agents. Illustrative of the disclosed compounds are fatty acid amino acid analogs of the structure ##STR1## in which X is the ethyl or t-butyl ester of an amino acid such as Gly, L-Ala, L-Ile, L-Phe, L-Try, L-Thr, or an amide such as NHCH.sub.2 C.sub.6 H.sub.5 or NH(CH.sub.2).sub.2 C.sub.6 H.sub.5.
    Type: Grant
    Filed: November 4, 1996
    Date of Patent: February 17, 1998
    Assignee: G. D. Searle & Co.
    Inventors: Sean T. Nugent, Richard A. Mueller
  • Patent number: 5672769
    Abstract: Novel derivatives of fatty acid analogs that have from one to three heteroatoms in the fatty acid moiety which can be oxygen, sulfur or nitrogen, are disclosed in which the carboxy-terminus has been modified to form various amides, esters, ketones, alcohols, alcohol esters and nitriles thereof.These compounds are useful as substrates for N-myristoyltransferase (NMT) and/or its acyl coenzyme, and as anti-viral and anti-fungal agents or pro-drugs of such agents. Illustrative of the disclosed compounds are fatty acid amino acid analogs of the structure ##STR1## in which X is the ethyl or t-butyl ester of an amino acid such as Gly, L-Ala, L-Ile, L-Phe, L-Trp, L-Thr or an amide such as NHCH.sub.2 C.sub.6 H.sub.5 or NH(CH.sub.2).sub.2 C.sub.6 H.sub.5.
    Type: Grant
    Filed: November 4, 1996
    Date of Patent: September 30, 1997
    Assignee: G. D. Searle & Co.
    Inventors: Sean T. Nugent, Richard A. Mueller
  • Patent number: 5670650
    Abstract: Novel derivatives of fatty acid analogs that have from one to three heteroatoms in the fatty acid moiety which can be oxygen, sulfur or nitrogen, are disclosed in which the carboxy-terminus has been modified to form various amides, esters, ketones, alcohols, alcohol esters and nitriles thereof.These compounds are useful as substrates for N-myristoyltransferase (NMT) and/or its acyl coenzyme, and as anti-viral and anti-fungal agents or pro-drugs of such agents. Illustrative of the disclosed compounds are fatty acid amino acid analogs of the structure ##STR1## in which X is the ethyl or t-butyl ester of an amino acid such as Gly, L-Ala, L-Ile, L-Phe, L-Trp, L-Thr or an amide such as NHCH.sub.2 C.sub.6 H.sub.5 or NH(CH.sub.2).sub.2 C.sub.6 H.sub.5.
    Type: Grant
    Filed: November 4, 1996
    Date of Patent: September 23, 1997
    Assignee: G. D. Searle & Co.
    Inventors: Sean T. Nugent, Richard A. Mueller
  • Patent number: 5631399
    Abstract: The present invention relates to a novel process for the preparation of ethyl 3S-[[4-[[4-(aminoiminomethyl)phenyl]amino]-1,4-dioxobutyl]amino]-4-pentyno ate and pharmaceutically acceptable acid addition salt thereof.
    Type: Grant
    Filed: May 14, 1996
    Date of Patent: May 20, 1997
    Assignee: G. D. Searle & Co.
    Inventors: Kevin A. Babiak, Srinivasan Babu, James R. Behling, Mark L. Boys, Kimberly J. Cain-Janicki, Wendel W. Doubleday, Payman Farid, Timothy J. Hagen, E. A. Hallinan, Donald W. Hansen, Jr., Donald E. Korte, Kathleen T. Mc Laughlin, John R. Medich, Sean T. Nugent, Vlasdislav Orlovski, Jung M. Park, Karen B. Peterson, Daniel R. Pilipauskas, Barnett S. Pitzele, Sofya Tsymbalov, Glenn L. Stahl
  • Patent number: 5599947
    Abstract: Novel derivatives of fatty acid analogs that have from one to three heteroatoms in the fatty acid moiety which can be oxygen, sulfur or nitrogen, are disclosed in which the carboxy-terminus has been modified to form various amides, esters, ketones, alcohols, alcohol esters and nitriles thereof.These compounds are useful as substrates for N-myristoyltransferase (NMT) and/or its acyl coenzyme, and as anti-viral and anti-fungal agents or pro-drugs of such agents. Illustrative of the disclosed compounds are fatty acid amino acid analogs of the structure ##STR1## in which X is the ethyl or t-butyl ester of an amino acid such as Gly, L--Ala, L--Ile, L--Phe, L--Trp, L--Thr or an amide such as NHCH.sub.2 C.sub.6 H.sub.5 or NH(CH.sub.2).sub.2 C.sub.6 H.sub.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: February 4, 1997
    Assignee: G. D. Searle & Co.
    Inventors: Sean T. Nugent, Richard A. Mueller
  • Patent number: 5536869
    Abstract: The present invention relates to a novel process for the preparation of ethyl 3S-[[4-[[4-(aminoiminomethyl)phenyl]amino]-1,4-dioxobutyl]amino]-4-pentyno ate and pharmaceutically acceptable acid addition salt thereof which comprises treating (trimethylsilyl)acetylene sequentially with n-butyllithium and 4-formylmorpholine followed by acid hydrolysis to give 3-(trimethylsilyl)-2-propynal; treating 3-(trimethylsilyl)-2-propynal with lithium bis(trimethylsilyl)amide to give in situ N,3-bis(trimethylsilyl)-2-propyn-1-imine; condensation of N,3-bis(trimethylsilyl)-2-propyn-1-imine with lithium t-butyl acetate to give (.+-.)1,1-dimethylethyl 3-amino-5-(trimethylsilyl)-4-pentynoate; treating (.+-.)1,1-dimethylethyl 3-amino-5-(trimethylsilyl)-4-pentynoate- with p-toluenesulfonic acid to give (.+-.)1,1-dimethylethyl 3-amino-5-(trimethylsilyl)-4-pentynoate, mono p-toluenesulfonic acid salt, treatment of resulting salt with ethanol in the presence of p-toluenesulfonic acid to give (.+-.
    Type: Grant
    Filed: July 14, 1995
    Date of Patent: July 16, 1996
    Assignee: G. D. Searle & Co.
    Inventors: Kevin A. Babiak, Srinivasan Babu, James R. Behling, Mark L. Boys, Kimberly J. Cain-Janicki, Wendel W. Doubleday, Payman Farid, Timothy J. Hagen, E. Ann Hallinan, Donald W. Hansen, Jr., Donald E. Korte, Kathleen T. McLaughlin, John R. Medich, Sean T. Nugent, Vlasdislav Orlovski, Jung M. Park, Karen B. Peterson, Daniel R. Pilipauskas, Barnett S. Pitzele, Sofya Tsymbalov, Glenn L. Stahl