Patents Examined by Susanah Chung
  • Process for preparation of 2-methyl-2?-phenylpropionic acid derivatives and novel intermediate compounds
    Patent number: 8487106
    Abstract: The present invention relates to a process for preparing 2-methyl-2?-phenylpropionic acid derivatives showing antihistamine activity in more simplified way, intermediate compounds and their preparation processes used therefore. According to the present invention, pharmaceutically useful 2-methyl-2?-phenylpropionic acid derivatives can be prepared with high yield and purity on industrial scale.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: July 16, 2013
    Assignee: Yuhan Corporation
    Inventors: Chun-Ho Lee, Ja-Heouk Khoo, Kyoung-Chan Kwon, Hyun Ju