Patents by Inventor Michael James Di Maso

Michael James Di Maso 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).

  • Process for synthesis of a phenoxy diaminopyrimidine compound
    Patent number: 11584724
    Abstract: Disclosed herein is a novel process for preparing Compound A free base, 5-((2,4-diaminopyrimidin-5-yl)oxy)-4-iso-propyl-2-methoxybenzenesulfonamide, and a citrate salt of Compound A with simplified chemistry and a high overall yield: Compound A. In one embodiment, the overall yield from the starting material 2-isopropylphenol to Compound A citrate salt is greater than 50%. In another embodiment, the overall yield is greater than 60%. Also disclosed herein are novel salts and solvates of Compound A.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: February 21, 2023
    Assignees: Merck Sharp & Dohme LLC, Werthenstein BioPharma GmbH
    Inventors: Kevin M. Maloney, Kallol Basu, Michael James Di Maso, Guy R. Humphrey, Alfred Y. Lee, Feng Peng, Hong Ren, Siwei Zhang
  • NOVEL PROCESS FOR SYNTHESIS OF A PHENOXY DIAMINOPYRIMIDINE COMPOUND
    Publication number: 20210122717
    Abstract: Disclosed herein is a novel process for preparing Compound A free base, 5-((2,4-diaminopyrimidin-5-yl)oxy)-4-iso-propyl-2-methoxybenzenesulfonamide, and a citrate salt of Compound A with simplified chemistry and a high overall yield: Compound A. In one embodiment, the overall yield from the starting material 2-isopropylphenol to Compound A citrate salt is greater than 50%. In another embodiment, the overall yield is greater than 60%. Also disclosed herein are novel salts and solvates of Compound A.
    Type: Application
    Filed: April 18, 2019
    Publication date: April 29, 2021
    Applicants: Merck Sharp & Dohme Corp., Werthenstein BioPharma GmbH
    Inventors: Kevin M. Maloney, Kallol Basu, John Y.L. Chung, Richard Desmond, Michael James Di Maso, Guy R. Humphrey, Alfred Y. Lee, Dan Lehnherr, Feng Peng, Hong Ren, Mark Weisel, Siwei Zhang, Patrick Larpent