Patents by Inventor Ok Kyoung CHOI

Ok Kyoung CHOI 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).

  • METHOD FOR PREPARING COMPOUND AS PI3K INHIBITOR AND INTERMEDIATE COMPOUND FOR PREPARING SAME
    Publication number: 20230295158
    Abstract: The present invention provides a method for preparing a compound as a PI3K inhibitor with reduced process steps, including a process that has a shortened reaction time in the preparation of the compound as a PI3K inhibitor, and enabling reaction in mild conditions. Accordingly, the present invention provides a method for preparing a compound as a PI3K inhibitor, which is easy in process management and industrial mass-production while achieving process simplification, compared to existing known preparation methods.
    Type: Application
    Filed: June 29, 2021
    Publication date: September 21, 2023
    Inventors: Yong Ho SUN, Ok Kyoung CHOI, Joon Kwang LEE, Ji Han KIM