Patents by Inventor Hyun-Kuk Noh

Hyun-Kuk Noh 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).

  • New process for preparing 4-aminomethyl-3-alkoxyiminopyrrolidine methanesulfonate
    Publication number: 20070282107
    Abstract: The present invention relates to a process for the preparation of 4-aminomethyl-3-alkoxyiminopyrrolidine methanesulfonate, a key intermediate of quinolone antibiotics. According to the process of the present invention, the total number of steps has been shortened to 2-3 steps, the solid separation is not required, and the use of costly chemicals, particularly (BOC)2O (t-butoxycarbonyl anhydride), several organic solvents and reactants, is eliminated.
    Type: Application
    Filed: August 7, 2007
    Publication date: December 6, 2007
    Inventors: Gyo-Hyun Hwang, Yeong-Dae Kim, Hyun Nam, Jay-Hyok Chang, Hyun-Ik Shin, Young-Keun Kim, Kyung Lee, Jae Lee, Hyun-Kuk Noh