Patents by Inventor John Drach

John Drach 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).

  • Publication number: 20170044202
    Abstract: The present disclosure provides pyrrolopyrimidine nucleoside analogs of the Formula I, Formula IA, Formula IB, or Formula II and phospholipid conjugates and pharmaceutical compositions thereof wherein Itc and A are defined herein. Also presented are methods of treating and/or preventing viral infection and/or viral infection-associated disease or disorder with one or more compounds of Formula I, Formula IA, Formula IB, or Formula II.
    Type: Application
    Filed: August 8, 2016
    Publication date: February 16, 2017
    Inventors: Roy W. Ware, Leroy Townsend, John Drach
  • Publication number: 20070225302
    Abstract: Compounds which are active against viruses have the following Formulas: wherein B is 2-aminopurine-9-yl, which may be unsubstituted or substituted in the 6 position with NHR1, OR2, or SR3; R1 is selected from the group consisting of alkyl, alkenyl, alkynyl, and C4-18 cycloalkyl, any of which may be optionally substituted with one or more members of the group consisting of hydroxy, halo, amino, acyl, cycloalkyl, heterocyclyl and aryl; R2 is selected from the group consisting of C2-18 alkyl, alkenyl, alkynyl, and cycloalkyl, any of which may be branched or unbranched and optionally substituted with one or more members of the group consisting of hydroxy, halo, amino, acyl, cycloalkyl, heterocyclyl, and aryl; and R3 is selected from the group consisting of alkyl, alkenyl, alkynyl, and cycloalkyl, any of which may be branched or unbranched and optionally substituted with one or more members of the group consisting of hydroxy, halo, amino, acyl, cycloalkyl, heterocyclyl and aryl.
    Type: Application
    Filed: February 15, 2007
    Publication date: September 27, 2007
    Inventors: Jiri Zemlicka, John Drach, Xinchao Chen
  • Publication number: 20060122203
    Abstract: Compounds which are active against viruses have the following Formulas: wherein B is a purine or pyrimidine heterocyclic ring and is preferably selected from the group consisting of 6-aminopurine (adenine), 2,6-diaminopurine, 2-amino-6-azidopurine, 2-amino-6-cyclopropylaminopurine, 6-hydroxypurine (hypoxanthine), 2-amino-6-halo substituted purines, 2-amino-6-alkoxy substituted purines, 2-amino-6-hydroxypurine (guanine), 3-deazapurines, 7-deaza-purines, 8-azapurines, cytosine, 5-halo substituted cytosines, 5-alkyl substituted cytosines, thymine, uracil and 6-azapyrimidines; X is O; and, R1 and R2 are alkyl or aryl groups. The compounds of the present invention also include the R- and S-enantiomers of the above compounds. The R1X and/or R2X can also be amino acid residues with X as NH.
    Type: Application
    Filed: October 25, 2005
    Publication date: June 8, 2006
    Inventors: Jiri Zemlicka, Yao-Ling Qiu, John Drach, Roger Ptak
  • Publication number: 20050143329
    Abstract: The present invention provides novel chemical compounds, and methods for their use. In particular, the present invention provides indole derivatives (e.g. as shown in Formula (I)) and related compounds and methods of using indole derivatives and related compounds as therapeutic agents to treat a number of conditions, including those associated with viral infection and cardiovascular diseases.
    Type: Application
    Filed: October 6, 2004
    Publication date: June 30, 2005
    Applicant: The Regents of the University of Michigan
    Inventors: Leroy Townsend, John Drach
  • Publication number: 20050124582
    Abstract: Compounds which are active against viruses have the following Formulas: wherein B is 2-aminopurine-9-yl, which may be unsubstituted or substituted in the 6 position with NHR1, OR2, or SR3; R1 is selected from the group consisting of alkyl, alkenyl, alkynyl, and C4-18 cycloalkyl, any of which may be optionally substituted with one or more members of the group consisting of hydroxy, halo, amino, acyl, cycloalkyl, heterocyclyl and aryl; R2 is selected from the group consisting of C2-18 alkyl, alkenyl, alkynyl, and cycloalkyl, any of which may be branched or unbranched and optionally substituted with one or more members of the group consisting of hydroxy, halo, amino, acyl, cycloalkyl, heterocyclyl, and aryl; and R3 is selected from the group consisting of alkyl, alkenyl, alkynyl, and cycloalkyl, any of which may be branched or unbranched and optionally substituted with one or more members of the group consisting of hydroxy, halo, amino, acyl, cycloalkyl, heterocyclyl and aryl.
    Type: Application
    Filed: September 15, 2004
    Publication date: June 9, 2005
    Inventors: Jiri Zemlicka, John Drach, Xinchao Chen
  • Publication number: 20050113393
    Abstract: Compounds which are active against viruses have the following formulas: wherein B is a purine or pyrimidine heterocyclic ring or base. In a preferred embodiment, the purine include 6-aminopurine (adenine), 6-hydroxypurine (hypoxanthine), 2-amino-6-hydroxypurine (guanine), 2,6-diamino-purine, 2-amino-6-azidopurine, 2-amino-6-halo substituted purines such as 2-amino-6-chloropurine, 2-amino-6-fluoropurine, 2-amino-6-alkoxypurines such as 2-amino-6-methoxypurine, 2-amino-6-cyclopropylaminopurine, 2-amino-6-alkylamino or 2-amino-6-dialkylamino substituted purines, 2-amino-6-thiopurine, 2-amino-6-alkylthio substituted purines, 3-deazapurines, 7-deazapurines and 8-azapurines. The pyrimidine incorporates cytosine, uracil and thymine, 5-halo substituted cytosines and uracils, 5-alkyl substituted cytosines and uracils including derivatives with a saturated or unsaturated alkyl group and 6-azapyrimidines.
    Type: Application
    Filed: September 15, 2004
    Publication date: May 26, 2005
    Applicants: WAYNE STATE UNIVERSITY, The Regents of the University of Michigan
    Inventors: Jiri Zemlicka, Shaoman Zhou, John Drach
  • Publication number: 20050009842
    Abstract: Compounds which are active against viruses have the following Formulas: wherein B is a purine or pyrimidine heterocyclic ring and is preferably selected from the group consisting of 6-aminopurine (adenine), 2,6-diaminopurine, 2-amino-6-azidopurine, 2-amino-6-cyclopropylaminopurine, 6-hydroxypurine (hypoxanthine), 2-amino-6-halo substituted purines, 2-amino-6-alkoxy substituted purines, 2-amino-6-hydroxypurine (guanine), 3-deazapurines, 7-deaza-purines, 8-azapurines, cytosine, 5-halo substituted cytosines, 5-alkyl substituted cytosines, thymine, uracil and 6-azapyrimidines; X is 0; and, R1 and R2 are alkyl or aryl groups. The compounds of the present invention also include the R- and S-enantiomers of the above compounds. The R,X and/or R2X can also be amino acid residues with X as NH.
    Type: Application
    Filed: August 6, 2004
    Publication date: January 13, 2005
    Inventors: Jiri Zemlicka, Yao-Ling Qiu, John Drach, Roger Ptak