Patents by Inventor William R. Cantrell, Jr.

William R. Cantrell, Jr. 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: 20210114980
    Abstract: Compounds as STAT3 inhibitors are described. A pharmaceutical composition comprising the same, methods of making the same, and a method for treating or preventing conditions such as cancer, chronic inflammation, and fibrosis using the same, are described.
    Type: Application
    Filed: April 18, 2019
    Publication date: April 22, 2021
    Inventors: Sofia De Achaval WIED, William E. BAUTA, William R. CANTRELL, Jr., David John TWEARDY
  • Patent number: 10927121
    Abstract: Methods for removing residual solvent from Nalmefene Hydrochloride (HCl) and producing crystalline Nalmefene HCl monohydrate, monosolvate or crystalline Nalmefene HCl dihydrate are described. In embodiments, the methods include recrystallizing Nalmefene HCl from a solvate that includes Nalmefene HCl, water, and a first solvent, wherein the first solvent has a molar volume of at least 98 cm3. Crystalline Nalmefene HCl with a desirably low amount of residual solvent is also described.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: February 23, 2021
    Assignee: Southwest Research Institute
    Inventors: William R. Cantrell, Jr., Robert D. Gutierrez, Michael J. Rubal
  • Publication number: 20210038544
    Abstract: Compounds as STAT3 inhibitors are described. A pharmaceutical composition comprising the same, methods of making the same, and a method for treating or preventing conditions such as cancer, chronic inflammation, and fibrosis using the same, are described.
    Type: Application
    Filed: October 22, 2020
    Publication date: February 11, 2021
    Inventors: Sofia De Achaval Wied, William E. Bauta, William R. Cantrell, JR., David John Tweardy
  • Patent number: 10493062
    Abstract: Provided herein is a process for the preparation of a compound of formula (I) or a pharmaceutically acceptable salt thereof, using cynamide in the reaction.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: December 3, 2019
    Assignee: Lumos Pharma, Inc.
    Inventors: William R. Cantrell, Jr., William E. Bauta
  • Patent number: 10377721
    Abstract: Provided herein is a process and intermediates for the preparation of a compound of formula (I): or a pharmaceutically acceptable salt thereof, using cyanamide in the reaction.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: August 13, 2019
    Assignee: Lumos Pharma, Inc.
    Inventors: William R. Cantrell, Jr., William E. Bauta
  • Publication number: 20180354910
    Abstract: Provided herein is a process and intermediates for the preparation of a compound of formula (I): or a pharmaceutically acceptable salt thereof, using cyanamide in the reaction.
    Type: Application
    Filed: August 21, 2018
    Publication date: December 13, 2018
    Inventors: William R. Cantrell, JR., William E. Bauta
  • Patent number: 10081605
    Abstract: Provided herein is a process and intermediates for the preparation of a compound of formula (I): or a pharmaceutically acceptable salt thereof, using cyanamide in the reaction.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: September 25, 2018
    Assignee: Lumos Pharma, Inc.
    Inventors: William R. Cantrell, Jr., William E. Bauta
  • Publication number: 20180044299
    Abstract: Provided herein is a process an intermediates for the preparation of a compound of formula (I): or a pharmaceutically acceptable salt thereof, using cyanamide in the reaction.
    Type: Application
    Filed: March 11, 2016
    Publication date: February 15, 2018
    Inventors: William R. Cantrell, JR., William E. Bauta
  • Patent number: 9873689
    Abstract: The present invention relates to methods and strategies for large-scale synthesis of compounds having the chemical structure: The R substituents are H, methyl, isopropyl, benzyl, cyclohexyl, cyclopropylmethyl, methoxy, tert-butyloxycarbonyl, methanesulfonyl, p-toluenesulfonyl, quinolinesulfonyl, or thiophenesulfonyl groups. The method comprises condensing prothionamide with a halo nitroacetophenone to form a nitrophenyl substituted thiazole, reducing the nitro group to form an amine and derivatizing the amine to produce the compound.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: January 23, 2018
    Assignee: FGH BIOTECH, INC.
    Inventor: William R. Cantrell, Jr.
  • Publication number: 20170273950
    Abstract: Provided herein is a process for the preparation of a compound of formula (I) or a pharmaceutically acceptable salt thereof, using cynamide in the reaction.
    Type: Application
    Filed: September 1, 2015
    Publication date: September 28, 2017
    Applicant: Lumos Pharma, Inc.
    Inventors: William R. Cantrell, JR., William E. Bauta
  • Publication number: 20160130264
    Abstract: The present invention relates to methods and strategies for large-scale synthesis of compounds having the chemical structure: The R substituents are H, methyl, isopropyl, benzyl, cyclohexyl, cyclopropylmethyl, methoxy, tert-butyloxycarbonyl, methanesulfonyl, p-toluenesulfonyl, quinolinesulfonyl, or thiophenesulfonyl groups. The method comprises condensing prothionamide with a halo nitroacetophenone to form a nitrophenyl substituted thiazole, reducing the nitro group to form an amine and derivatizing the amine to produce the compound.
    Type: Application
    Filed: November 6, 2015
    Publication date: May 12, 2016
    Inventor: William R. Cantrell, JR.
  • Patent number: 9162983
    Abstract: The present invention relates to organophosphate-inhibited acetylcholinesterase (AChE) reactivators with central nervous system (CNS) bioavailability and their associated methods of preparation including their use for treatment of exposure to AChE inhibitors such as an organophosphate (OP) insecticides and nerve agents.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: October 20, 2015
    Assignee: SOUTHWEST RESEARCH INSTITUTE
    Inventors: William E. Bauta, William R. Cantrell, Jr., Michael W. Tidwell
  • Publication number: 20140350262
    Abstract: The present invention relates to organophosphate-inhibited acetylcholinesterase (AChE) reactivators with central nervous system (CNS) bioavailability and their associated methods of preparation including their use for treatment of exposure to AChE inhibitors such as an organophosphate (OP) insecticides and nerve agents.
    Type: Application
    Filed: May 22, 2014
    Publication date: November 27, 2014
    Applicant: Southwest Research Institute
    Inventors: William E. BAUTA, William R. CANTRELL, JR., Michael W. TIDWELL
  • Publication number: 20130172588
    Abstract: The present application provides a novel method for generation of a vitamin D2 compound using a continuous flow photoisomerization reactor. A compound represented by formula I: [structure] as further defined herein, is mixed with a solvent and a sensitizer, and is then passed through the continuous flow photoisomerization reactor. If X3 and X4 of formula II is tert-butyldimethylsilyl, then formula II is mixed with a deprotection reagent to obtain the vitamin D2 analog.
    Type: Application
    Filed: September 1, 2011
    Publication date: July 4, 2013
    Applicant: GENZYME CORPORATION
    Inventors: William Edward Bauta, Bruce Girard Anderson, William R. Cantrell, JR.
  • Publication number: 20130035306
    Abstract: The present invention provides for the preparation ?-adenine nucleosides by coupling an adenine derivative containing an unprotected exocyclic amino group at the C-6 position and a blocked arabinofuranosyl derivative, in the presence of a base and solvent. The present invention also provides for the stereoselective preparation of 2-deoxy-?-D-adenine nucleosides wherein a blocked 2-deoxy-?-D-arabinofuranosyl halide is coupled with the salt of an adenine derivative. The forgoing aspects of the present invention are utilized in the preparation of a clofarabine composition wherein the ratio of ? to ?-anomer is at least 99:1.
    Type: Application
    Filed: July 6, 2012
    Publication date: February 7, 2013
    Applicant: Genzyme Corporation
    Inventors: William E. Bauta, Brian D. Burke, Brian E. Schulmeier, William R. Cantrell, JR., Dennis P. Lovett, Jose Puente
  • Publication number: 20110282045
    Abstract: The present invention for the stereoselective preparation of 2-deoxy-?-D-adenine nucleosides wherein a blocked 2-deoxy-?-D-arabinofuranosyl halide is coupled with the salt of an adenine derivative.
    Type: Application
    Filed: May 13, 2011
    Publication date: November 17, 2011
    Inventors: William E. Bauta, Brian D. Burke, Brian E. Schulmeier, William R. Cantrell, JR., Dennis P. Lovett, Jose Puente
  • Patent number: 7947824
    Abstract: The present invention for the stereoselective preparation of 2-deoxy-?-D-adenine nucleosides wherein a blocked 2-deoxy-?-D-arabinofuranosyl halide is coupled with the salt of an adenine derivative.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: May 24, 2011
    Assignee: Genzyme Corporation
    Inventors: William E. Bauta, Brian D. Burke, Brian E. Schulmeier, William R. Cantrell, Jr., Dennis P. Lovett, Jose Puente
  • Publication number: 20090286971
    Abstract: The present invention for the stereoselective preparation of 2-deoxy-?-D-adenine nucleosides wherein a blocked 2-deoxy-?-D-arabinofuranosyl halide is coupled with the salt of an adenine derivative.
    Type: Application
    Filed: May 4, 2009
    Publication date: November 19, 2009
    Inventors: William E. Bauta, Brian D. Burke, Brian E. Schulmeier, William R. Cantrell, JR., Dennis P. Lovett, Jose Puente
  • Patent number: 7528247
    Abstract: The present invention for the stereoselective preparation of 2-deoxy-?-D-adenine nucleosides wherein a blocked 2-deoxy-?-D-arabinofuranosyl halide is coupled with the salt of an adenine derivative.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: May 5, 2009
    Assignee: Genzyme Corporation
    Inventors: William E. Bauta, Brian D. Burke, Brian E. Schulmeier, William R. Cantrell, Jr., Dennis P. Lovett, Jose Puente
  • Patent number: 6797838
    Abstract: The present invention provides a process for the preparation of homophthlate esters useful in the preparation of homophthalic anhydride reactants.
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: September 28, 2004
    Assignee: Ilex Products, Inc.
    Inventors: William E. Bauta, William R. Cantrell, Jr., Dennis P. Lovett