Patents by Inventor Mei-Jing Lee

Mei-Jing Lee 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).

  • Crystalline of camphorsulfonic acid salt of rucaparib and method of preparing of tricyclic compounds, rucaparib and crystalline of camphorsulfonic acid salt of rucaparib
    Patent number: 11021483
    Abstract: A method of preparing a tricyclic compound of formula (I), comprising the step of converting a compound of formula (II) into a compound of formula (III); and hydrogenating the compound of formula (III) in the presence of hydrogenation catalyst and hydrogen to form the tricyclic compound of formula (I); wherein R1 is H or a C1-3 alkyl group; and R2 is H, a halogen element or a C1-3 alkyl group.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: June 1, 2021
    Assignee: Formosa Laboratories, Inc.
    Inventors: Wen-Chieh Yang, Mei-Jing Lee, Hsueh-Chen Lee, Lung-Hsiang Li
  • CRYSTALLINE OF CAMPHORSULFONIC ACID SALT OF RUCAPARIB AND METHOD OF PREPARING OF TRICYCLIC COMPOUNDS, RUCAPARIB AND CRYSTALLINE OF CAMPHORSULFONIC ACID SALT OF RUCAPARIB
    Publication number: 20200165261
    Abstract: A method of preparing a tricyclic compound of formula (I), comprising the step of converting a compound of formula (II) into a compound of formula (III); and hydrogenating the compound of formula (III) in the presence of hydrogenation catalyst and hydrogen to form the tricyclic compound of formula (I); wherein R1 is H or a C1-3 alkyl group; and R2 is H, a halogen element or a C1-3 alkyl group.
    Type: Application
    Filed: August 1, 2019
    Publication date: May 28, 2020
    Inventors: Wen-Chieh Yang, Mei-Jing Lee, Hsueh-Chen Lee, Lung-Hsiang Li
  • PROCESS FOR PREPARING TEMOZOLOMIDE
    Publication number: 20120108811
    Abstract: This present invention provides an improved process for preparing Temozolomide (TMZ) stable at room temperature for at least 18 months. This present invention also relates to Temozolomide stable at room temperature for at least 18 months.
    Type: Application
    Filed: October 28, 2010
    Publication date: May 3, 2012
    Applicant: FORMOSA LABORATORIES INC.
    Inventors: Mei-Jing Lee, Ching-Peng Wei
  • Process for Preparation of Mycophenolate Mofetil
    Publication number: 20080188653
    Abstract: The present invention provides a novel process for the preparation of mycophenolate mofetil, by heating mycophenolic acid with 2-morpholinoethanol in an organic solvent in the presence of drying agent.
    Type: Application
    Filed: February 4, 2007
    Publication date: August 7, 2008
    Applicant: FORMOSA LABORATORIES, INC.
    Inventors: Mei-Jing Lee, Rung-Tian Suen, Yu-Liang Liu, Ching-Peng Wei