Patents by Inventor Gildon Choi

Gildon Choi 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).

  • Patent number: 11976059
    Abstract: The present invention relates to an isoindolin-1-on derivative, a method for preparing same, and a pharmaceutical composition comprising same as an effective component for preventing or treating tumors, wherein the isoindolin-1-on derivative exhibits a high inhibitory effect on EGFR mutations, and thus can be beneficially used for the treatment of EGFR-mutated tumors, and the isoindolin-1-on derivative exhibits a significant synergistic effect when co-administered, and thus can be beneficially used in concomitant therapy.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: May 7, 2024
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Kwangho Lee, Gildon Choi, Seoyoung Lee, Jiwon Kim, Byoung Chul Cho, Chae Won Park, Jiyeon Yun
  • Publication number: 20230018246
    Abstract: Pyrrolidine carboxamido derivatives, optical isomers thereof, and salts thereof that are able to prevent, improve, and/or treat inflammatory conditions, including inflammatory bowel disease, and methods for preparing and using the same are provided.
    Type: Application
    Filed: August 3, 2022
    Publication date: January 19, 2023
    Applicants: Research & Business Foundation Sungkyunkwan University, Korea Research Institute of Chemical Technology
    Inventors: Kwangho LEE, Sang Dal Rhee, Gildon Choi, Imran Ali, Chong Hak Chae, Moon Kook Jeon, Seok Hee Park, Youn Sook Lee
  • Publication number: 20220281817
    Abstract: The present invention relates to a benzamide derivative, a preparation method therefor, and a pharmaceutical composition comprising same as an active ingredient for prevention or treatment of cancer. The benzamide derivative provided in an aspect of the present invention can be used for preventing or treating cancer by suppressing EGFR mutation, and exhibits a remarkable synergy effect on anticancer activity when administered in combination with an EGFR antagonist such as Cetuximab, thus finding advantageous uses as an anticancer agent.
    Type: Application
    Filed: November 19, 2020
    Publication date: September 8, 2022
    Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Kwangho Lee, Jiwon Kim, Byoung Chul Cho, Gildon Choi, Jiyeon Yun, Chae Won Park, Krishna Babu Duggirala, Chong Hak Chae, Seo Young Lee, A Reum Go
  • Publication number: 20220249482
    Abstract: The present invention relates to a N2,N4-diphenylpyrimidin-2,4-diamine derivative, a method for preparing the same, and a pharmaceutical composition for the prevention or treatment of cancer, containing the same as an active ingredient. The derivative shows a relatively weak EGFR activity inhibitory effect on wild-type EGFR, a high inhibitory ability on EGFR mutation, and a high inhibitory ability on even FLT3 and FLT3 mutation, and thus, can be effectively used for the treatment of cancer with EGFR mutation or cancer with FLT3 or a mutation thereof, and the derivative shows a synergy effect at the time of combination administration, and thus can be effectively used for the treatment of combination administration.
    Type: Application
    Filed: February 18, 2022
    Publication date: August 11, 2022
    Inventors: Kwangho Lee, Inji Shin, Gildon Choi, Chong Hak Chae, Hyeon Jeong Choe, Myoung Eun Jung, Byeong Uk Jeon, Byoung Chul Cho, Chae Won Park, Hwan Kim, Krishna Babu Duggirala
  • Patent number: 11365215
    Abstract: Pyrrolidine carboxamido derivatives, optical isomers thereof, and salts thereof that are able to prevent, improve, and/or treat inflammatory conditions, including inflammatory bowel disease, and methods for preparing and using the same are provided.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: June 21, 2022
    Assignees: Korea Research Institute of Chemical Technology, Research & Business Foundation Sungkyunkwan University
    Inventors: Kwangho Lee, Sang Dal Rhee, Gildon Choi, Imran Ali, Chong Hak Chae, Moon Kook Jeon, Seok Hee Park, Youn Sook Lee
  • Patent number: 11253516
    Abstract: The present invention relates to a N2,N4-diphenylpyrimidin-2,4-diamine derivative, a method for preparing the same, and a pharmaceutical composition for the prevention or treatment of cancer, containing the same as an active ingredient. The derivative shows a relatively weak EGFR activity inhibitory effect on wild-type EGFR, a high inhibitory ability on EGFR mutation, and a high inhibitory ability on even FLT3 and FLT3 mutation, and thus, can be effectively used for the treatment of cancer with EGFR mutation or cancer with FLT3 or a mutation thereof, and the derivative shows a synergy effect at the time of combination administration, and thus can be effectively used for the treatment of combination administration.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: February 22, 2022
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Kwangho Lee, Inji Shin, Gildon Choi, Chong Hak Chae, Hyeon Jeong Choe, Myoung Eun Jung, Byeong Uk Jeon, Byoung Chul Cho, Chae Won Park, Hwan Kim, Krishna Babu Duggirala
  • Publication number: 20210332029
    Abstract: The present invention relates to an isoindolin-1-on derivative, a method for preparing same, and a pharmaceutical composition comprising same as an effective component for preventing or treating tumors, wherein the isoindolin-1-on derivative exhibits a high inhibitory effect on EGFR mutations, and thus can be beneficially used for the treatment of EGFR-mutated tumors, and the isoindolin-1-on derivative exhibits a significant synergistic effect when co-administered, and thus can be beneficially used in concomitant therapy.
    Type: Application
    Filed: August 12, 2019
    Publication date: October 28, 2021
    Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Kwangho Lee, Gildon Choi, Seoyoung Lee, Jiwon Kim, Byoung Chul Cho, Chae Won Park, Jiyeon Yun
  • Patent number: 11028090
    Abstract: Provided are a novel [1,2,4]triazolo[4,3-a]quinoxaline derivative, a method for preparing the same, and a pharmaceutical composition for preventing or treating bromodomain extra-terminal (BET) protein-related diseases including cancer and autoimmune diseases, containing the same as an active ingredient.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: June 8, 2021
    Assignees: Dong Wha Pharm. Co., Ltd., Korea Research Institute of Chemical Technology
    Inventors: Kwangho Lee, Gildon Choi, Imran Ali, Joo Yun Lee, Jin Soo Lee, Whui Jung Park, Yong Tae Kim, Seung Hwan Kim, Jung Hwan Kim, Jae-Kyung Lim
  • Publication number: 20200179384
    Abstract: The present invention relates to a N2,N4-diphenylpyrimidin-2,4-diamine derivative, a method for preparing the same, and a pharmaceutical composition for the prevention or treatment of cancer, containing the same as an active ingredient. The derivative shows a relatively weak EGFR activity inhibitory effect on wild-type EGFR, a high inhibitory ability on EGFR mutation, and a high inhibitory ability on even FLT3 and FLT3 mutation, and thus, can be effectively used for the treatment of cancer with EGFR mutation or cancer with FLT3 or a mutation thereof, and the derivative shows a synergy effect at the time of combination administration, and thus can be effectively used for the treatment of combination administration.
    Type: Application
    Filed: December 6, 2018
    Publication date: June 11, 2020
    Inventors: Kwangho Lee, Inji Shin, Gildon Choi, Chong Hak Chae, Hyeon Jeong Choe, Myoung Eun Jung, Byeong Uk Jeon, Byoung Chul Cho, Chae Won Park, Hwan Kim, Krishna Babu Duggirala
  • Patent number: 10647686
    Abstract: The present invention relates to compounds represented by Formula 1 or a pharmaceutically acceptable salt thereof, wherein: R1 is chloro or methyl; R2 is hydrogen or chloro; R3 is hydrogen, fluoro, chloro, bromo, methyl, ethyl, isopropyl, pentyl, hexyl, octyl, methoxy, phenoxy, (4-nitrophenyl)sulfonyl, piperidin-4-yl, or piperazin-1-yl; R4 is hydrogen, chloro, methyl or trifluoromethyl, phenoxy, (4-nitrophenyl)sulfonyl or piperidin-4-yl; or R3 and R4, together with the carbons to which they are attached, form a fused ring selected form the group consisting of: n is 1 or 2. These compounds according to the present invention remarkably inhibits activity of DRAK that inhibits signal systems of TGF-?, which is known to suppress cancer growth, and thus the novel pyrimidine compounds can be used as a pharmaceutical composition for preventing or treating cancer and can be used as a pharmaceutical composition for preventing or treating inflammatory disease.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: May 12, 2020
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Kwangho Lee, Gildon Choi, Na Ri Lee, Sang Jun Park, Myoung Eun Jung, Seong Jin Kim, Kyung-Min Yang, Jihee Lee
  • Publication number: 20200039984
    Abstract: Provided are a novel [1,2,4]triazolo[4,3-a]quinoxaline derivative, a method for preparing the same, and a pharmaceutical composition for preventing or treating bromodomain extra-terminal (BET) protein-related diseases including cancer and autoimmune diseases, containing the same as an active ingredient.
    Type: Application
    Filed: January 25, 2018
    Publication date: February 6, 2020
    Inventors: Kwangho Lee, Gildon Choi, Imran Ali, Joo Yun Lee, Jin Soo Lee, Whui Jung Park, Yong Tae Kim, Seung Hwan Kim, Jung Hwan Kim, Jae-Kyung Lim
  • Publication number: 20190284143
    Abstract: The present invention relates to novel pyrimidine compounds, a method for preparing the same, and a pharmaceutical composition containing the same as an active ingredient for preventing or treating cancer and inflammatory disease. The novel pyrimidine compounds according to the present invention remarkably inhibits activity of DRAK that inhibits signal systems of TGF-?, which is known to suppress cancer growth, and thus the novel pyrimidine compounds can be used as a pharmaceutical composition for preventing or treating cancer and can be used as a pharmaceutical composition for preventing or treating inflammatory disease.
    Type: Application
    Filed: November 1, 2017
    Publication date: September 19, 2019
    Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Kwangho LEE, Gildon CHOI, Na Ri LEE, Sang Jun PARK, Myoung Eun JUNG, Seong Jin KIM, Kyung-Min YANG, Jihee LEE
  • Publication number: 20180208625
    Abstract: Pyrrolidine carboxamido derivatives, optical isomers thereof, and salts thereof that are able to prevent, improve, and/or treat inflammatory conditions, including inflammatory bowel disease, and methods for preparing and using the same are provided.
    Type: Application
    Filed: March 14, 2018
    Publication date: July 26, 2018
    Inventors: Kwangho Lee, Sang Dal Rhee, Gildon Choi, Imran Ali, Chong Hak Chae, Moon Kook Jeon, Seok Hee Park, Youn Sook Lee
  • Publication number: 20170008924
    Abstract: Pyrrolidine carboxamido derivatives, optical isomers thereof, and salts thereof that are able to prevent, improve, and/or treat inflammatory conditions, including inflammatory bowel disease, and methods for preparing and using the same are provided.
    Type: Application
    Filed: July 8, 2016
    Publication date: January 12, 2017
    Inventors: Kwangho Lee, Sang Dal Rhee, Gildon Choi, Imran Ali, Chong Hak Chae, Moon Kook Jeon, Seok Hee Park, Youn Sook Lee
  • Publication number: 20150141439
    Abstract: The present invention relates to a pharmaceutical composition for the prevention or treatment of cancer or Temodal resistant glioblastoma multiform comprising azathioprine as an active ingredient. The azathioprine of the present invention is not only effective in inhibiting the growth of glioblastoma multiform, a kind of brain tumor, but also excellent in treating glioblastoma multiform that displays resistance against Temodal (temozolomide), the conventional therapeutic agent for glioblastoma multiform, so that it can be effectively used as an active ingredient of a pharmaceutical composition for the prevention or treatment of such cancer as brain tumor (particularly, glioblastoma multiform) and particularly Temodal resistant glioblastoma multiform.
    Type: Application
    Filed: January 12, 2015
    Publication date: May 21, 2015
    Inventors: Heeyeong CHO, Gildon CHOI, Woo Kyu PARK, Dae Young JEONG, Hyeon Young KIM, Sunkyung LEE, Do Hyun NAM, Ho Jun SEOL
  • Patent number: 8372844
    Abstract: The present invention relates to a novel piperazinyl-propyl-pyrazole derivative, a method of its preparation and a pharmaceutically acceptable composition comprising the same. The novel piperazinyl-propyl-pyrazole derivative of the present invention has superior selective affinity for dopamine D4 receptor, can effectively inhibit psychotic behavior (cage climbing) induced by apomorphine, and has relatively low adverse effects in mouse rotarod test. Therefore, it can be developed as a therapeutic agent for the treatment and prevention of central nervous system (CNS) disorders, in particular, schizophrenia, attention deficit hyperactivity disorder, depression, stress diseases, panic disorder, phobia, obsessive-compulsive disorder, posttraumatic stress disorder, cognitive disorder, Alzheimer's disease, Parkinson's disease, anxiety, paraphrenia, mania, seizure disorder, personality disorder, migraine, drug addiction, alcohol addiction, obesity, eating disorder, and sleeping disorder.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: February 12, 2013
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Jae Yang Kong, Woo-Kyu Park, Heeyeong Cho, Daeyoung Jeong, Gildon Choi, Hun Yeong Koh, Sang Hee Kim, Ae Nim Pae, Yong Seo Cho, Joo Hwan Cha, Hyunah Choo, Sang Eun Chae, Hee-Yoon Lee
  • Publication number: 20120209001
    Abstract: The present invention relates to a novel piperazinyl-propyl-pyrazole derivative, a method of its preparation and a pharmaceutically acceptable composition comprising the same. The novel piperazinyl-propyl-pyrazole derivative of the present invention has superior selective affinity for dopamine D4 receptor, can effectively inhibit psychotic behavior (cage climbing) induced by apomorphine, and has relatively low adverse effects in mouse rotarod test. Therefore, it can be developed as a therapeutic agent for the treatment and prevention of central nervous system (CNS) disorders, in particular, schizophrenia, attention deficit hyperactivity disorder, depression, stress diseases, panic disorder, phobia, obsessive-compulsive disorder, posttraumatic stress disorder, cognitive disorder, Alzheimer's disease, Parkinson's disease, anxiety, paraphrenia, mania, seizure disorder, personality disorder, migraine, drug addiction, alcohol addiction, obesity, eating disorder, and sleeping disorder.
    Type: Application
    Filed: April 24, 2012
    Publication date: August 16, 2012
    Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Jae Yang KONG, Park Woo-Kyu, Heeyeong CHO, Daeyoung JEONG, Gildon CHOI, Hun Yeong KOH, Sang Hee KIM, Ae Nim PAE, Yong Seo CHO, Joo Hwan CHA, Hyunah CHOO, Sang Eun CHAE, Hee-Yoon LEE
  • Patent number: 8236806
    Abstract: The present invention relates to a novel piperazinyl-propyl-pyrazole derivative, a method of its preparation and a pharmaceutically acceptable composition comprising the same. The novel piperazinyl-propyl-pyrazole derivative of the present invention has superior selective affinity for dopamine D4 receptor, can effectively inhibit psychotic behavior (cage climbing) induced by apomorphine, and has relatively low adverse effects in mouse rotarod test. Therefore, it can be developed as a therapeutic agent for the treatment and prevention of central nervous system (CNS) disorders, in particular, schizophrenia, attention deficit hyperactivity disorder, depression, stress diseases, panic disorder, phobia, obsessive-compulsive disorder, posttraumatic stress disorder, cognitive disorder, Alzheimer's disease, Parkinson's disease, anxiety, paraphrenia, mania, seizure disorder, personality disorder, migraine, drug addiction, alcohol addiction, obesity, eating disorder, and sleeping disorder.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: August 7, 2012
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Jae Yang Kong, Woo-Kyu Park, Heeyeong Cho, Daeyoung Jeong, Gildon Choi, Hun Yeong Koh, Sang Hee Kim, Ae Nim Pae, Yong Seo Cho, Joo Hwan Cha, Hyunah Choo, Sang Eun Chae, Hee-Yoon Lee
  • Patent number: 7915405
    Abstract: Disclosed herein are 2,4-disubstituted-5-aminocarbonyl-1,3-thiazole derivatives, a preparation method thereof, and a therapeutic agent for treating inflammatory diseases induced by SPC, which contains the derivative as an active ingredient. The anti-inflammatory effect of the 2,4-disubstituted-5-aminocarbonyl-1,3-thiazole derivatives was analyzed through a test employing human dermal cells and an animal test using mice and, as a result, it was found that the derivatives showed excellent inhibitory activity on SPC receptor compared to thiazole derivatives known in the prior art. Thus, the 2,4-disubstituted-5-aminocarbonyl-1,3-thiazole derivatives or pharmaceutically acceptable salts thereof are useful as active ingredients in therapeutic agents for treating inflammatory diseases, such as inflammation, pruritus and skin infection, which appear in atopic dermatitis and other diseases induced by SPC activity. wherein R1, R2, R3 and R4 are as defined in the specification.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: March 29, 2011
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Young-Dae Gong, Taeho Lee, Moon-Kook Jeon, Heeyeong Cho, Jae Yang Kong, Gildon Choi, Dae Young Jeong, Soon-Hee Hwang
  • Publication number: 20100145043
    Abstract: Disclosed herein are 2,4-disubstituted-5-aminocarbonyl-1,3-thiazole derivatives, a preparation method thereof, and a therapeutic agent for treating inflammatory diseases induced by SPC, which contains the derivative as an active ingredient. The anti-inflammatory effect of the 2,4-disubstituted-5-aminocarbonyl-1,3-thiazole derivatives was analyzed through a test employing human dermal cells and an animal test using mice and, as a result, it was found that the derivatives showed excellent inhibitory activity on SPC receptor compared to thiazole derivatives known in the prior art. Thus, the 2,4-disubstituted-5-aminocarbonyl-1,3-thiazole derivatives or pharmaceutically acceptable salts thereof are useful as active ingredients in therapeutic agents for treating inflammatory diseases, such as inflammation, pruritus and skin infection, which appear in atopic dermatitis and other diseases induced by SPC activity. wherein R1, R2, R3 and R4 are as defined in the specification.
    Type: Application
    Filed: September 30, 2009
    Publication date: June 10, 2010
    Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Young-Dae Gong, Taeho Lee, Moon-Kook Jeon, Heeyeong Cho, Jae Yang Kong, Gildon Choi, Dae Young Jeong, Soon-Hee Hwang