Patents Assigned to Charmzone Co., Ltd.
  • Phytosphingosine derivatives with antitumor activity
    Patent number: 6538032
    Abstract: The present invention relates to an antitumor agent containing a phytosphingosine derivative, and more specifically, to an antitumor agent containing a phytosphingosine derivative of formula I as an active ingredient, wherein R1, R2 and R3 respectively represents a hydrogen atom or a C1-C8 alkyl group; and X represents an atom or an atomic group containing a halogen atom, a hydroxyl group, an alkyl sulfonate group or an aryl sulfonate group.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: March 25, 2003
    Assignee: Charmzone Co., Ltd.
    Inventors: Sung Keon Namgoong, Seon Yi Park