Patents by Inventor Chul Su BAEK

Chul Su BAEK 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).

  • Crystalline form of vascular leakage blocker compound
    Patent number: 12103945
    Abstract: The present invention relates to a crystalline form of (E)-methyl 6-((3S,8S,9S,10R,13S,14S,17R)-3-(((5S,6R)-5-acetoxy-6-(acetoxytnethyl)-5,6-dihydro-2H-pyran-2-yl)oxy)-10,13-dimethyl-2,3,4,7,8,9,10.11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-17-yl)hept-5-enoate and a blood vessel leak blocker comprising the same. The novel crystalline form has high purity, excellent stability, excellent long-term storage and pharmaceutical stability, and can be used as a vascular leakage blocker, so it is very advantageous in producing high-quality drug substances.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: October 1, 2024
    Assignee: CURACLE CO., LTD.
    Inventors: Koo Hyeon Ahn, Myung-Hwa Kim, Jung-In Pyo, Chul Su Baek, Sung Hwan Kim
  • Preparation method of vascular leakage blockers with a high yield
    Patent number: 11453698
    Abstract: The present invention relates to a preparation method of a novel vascular leakage blocker with a high yield. The preparation method is easy to react and more productive and economical than the conventional method by using an intermediate that can easily remove impurities generated during the reaction. In addition, the preparation method can produce a novel vascular leakage blocker with a high yield by using a new reagent that has not been previously used in the step of generating an isomer, and is very advantageous in producing a high-quality active pharmaceutical ingredient.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: September 27, 2022
    Assignee: CURACLE CO., LTD.
    Inventors: Koo Hyeon Ahn, Myung-Hwa Kim, Jung-Ln Pyo, Chul Su Baek, Sung Hwan Kim
  • NEW CRYSTALLINE FORM OF VASCULAR LEAKAGE BLOCKER COMPOUND
    Publication number: 20220259256
    Abstract: The present invention relates to a crystalline form Of (E)-methyl 6-((3S,8S,9S,10R,13S,14S,17R)-3-(((5S,6R)-5-acetoxy -6-(acetoxytnethyl)-5,6-dihydro-2H-pyran-2-yl)oxy)-10,13 -dimethyl-2,3,4,7,8,9,10.11,12,13,14,15,16,17-tetradecahydro -1H-cyclopenta [a]phenanthrene-17-yl)hept-5-enoate and a blood vessel leak blocker comprising the same. The novel crystalline form has high purity, excellent stability, excellent long-term storage and pharmaceutical stability, and can be used as a vascular leakage blocker, so it is very advantageous in producing high-quality drug substances.
    Type: Application
    Filed: October 5, 2020
    Publication date: August 18, 2022
    Inventors: Koo Hyeon Ahn, Myung-Hwa Kim, Jung-In Pyo, Chul Su Baek, Sung Hwan Kim
  • Preparation Method of Vascular Leakage Blockers With a High Yield
    Publication number: 20210395297
    Abstract: The present invention relates to a preparation method of a novel vascular leakage blocker with a high yield. The preparation method is easy to react and more productive and economical than the conventional method by using an intermediate that can easily remove impurities generated during the reaction. In addition, the preparation method can produce a novel vascular leakage blocker with a high yield by using a new reagent that has not been previously used in the step of generating an isomer, and is very advantageous in producing a high-quality active pharmaceutical ingredient.
    Type: Application
    Filed: July 28, 2020
    Publication date: December 23, 2021
    Inventors: Koo Hyeon AHN, Myung-Hwa KIM, Jung-In PYO, Chul Su BAEK, Sung Hwan KIM