Patents by Inventor Joong-Bok Ahn

Joong-Bok Ahn 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).

  • Publication number: 20100056623
    Abstract: The present invention relates to a fumagillol derivative, pharmaceutically acceptable salts thereof and a method for preparing the same. The compounds of the present invention can be prepared through acylation, hydrolysis and alkylation. The compound of the present invention can be prepared in the form of a pharmaceutically acceptable salt or inclusion compound. The present invention provides fumagillol derivatives having the following characteristics: increased inhibiting effect on angiogenesis, low toxicity, excellent solubility and chemical stability as compared to conventional angiogenesis inhibitors. The compounds of the present invention can be used as an anti-cancer medicine, inhibitor of cancer metastasis, or the therapeutic agent for treating rheumatic arthritis, psoriasis, diabetic retinitis or obesity.
    Type: Application
    Filed: January 26, 2005
    Publication date: March 4, 2010
    Applicant: CHONG KUN DANG PHARMACEUTICAL CORP.
    Inventors: Sang Joon Lee, Soon Kil Ahn, Hong Woo Lee, Joong Bok Ahn, Jae Soo Shin, Young Min Kwon
  • Publication number: 20090036679
    Abstract: Disclosed relates to a simplified method for resolving enantiomers by dissolving a racemic mixture having chiral carbon in ?-position of nitrogen and an amino acid to prepare a diastereomeric salt, not using catalyses or enzymes, with enhancing the optical purity remarkably. Moreover, the present invention can prepare the enantiomers in large quantities without using expensive catalysts or without controlling the reaction conditions for the activity of enzymes applied.
    Type: Application
    Filed: July 31, 2006
    Publication date: February 5, 2009
    Applicant: CHONG KUN DANG PHARMACEUTICAL CORP.
    Inventors: Soon Kil Ahn, Hong Woo Lee, In Taek Lim, Dai Sig Im, Joong Bok Ahn, Jung Hwa Lee
  • Patent number: 6787551
    Abstract: The present invention relates to a thiazolidinedione derivative, represented in formula (1) below, pharmaceutically acceptable salts thereof, and/or pharmaceutically acceptable solvates thereof. Further, the present invention provides a pharmaceutical composition comprising the compound represented in formula (1) below, wherein: X represents a carbon or nitrogen atom, Y represents a hydrogen atom, an alkyl group, an alkoxy group, a halogen, or an aryl group, Z represents an oxygen, nitrogen, or sulfur atom, and R1 and R2 each represent a hydrogen atom; or R1 and R2 together form a bond.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: September 7, 2004
    Assignee: Chong Kun Dang Pharmaceutical Corporation
    Inventors: Chung-Il Hong, Soon-Kil Ahn, Bok-Young Kim, Joong-Bok Ahn, Do-Young Lee, Hong-Woo Lee, Jae-Soo Shin
  • Publication number: 20040122031
    Abstract: The present invention relates to a thiazolidinedione derivative, represented in formula (1) below, pharmaceutically acceptable salts thereof, and/or pharmaceutically acceptable solvates thereof.
    Type: Application
    Filed: July 3, 2003
    Publication date: June 24, 2004
    Inventors: Chung-ll Hong, Soon-Kil Ahn, Bok-Young Kim, Joong-Bok Ahn, Do-Young Lee, Hong-Woo Lee, Jae-Soon Shin