Patents Represented by Attorney, Agent or Law Firm Christine O'Day
  • Process for synthesizing para-and/or meta-substituted cyanophenyalanine derivatives
    Patent number: 6284912
    Abstract: The present invention relates to a process for preparing a useful medicinal intermediate represented by the following formula (1): in which, R1, A and n are defined as described in the specification, or its stereoisomer, characterized in that a compound represented by the following formula (2): in which, R, R1, A and n are defined as described in the specification, is reacted with a cyanide in the presence of a nickel catalyst.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: September 4, 2001
    Assignee: LG Chemical, Ltd.
    Inventors: Bong Chan Kim, Sang Yeul Hwang, Jong Chan Lim, Do Hyun Nam, Hyun Ik Shin