Patents by Inventor Kuang-Yuan Lee

Kuang-Yuan Lee 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: 11661400
    Abstract: The present disclosure relates to a compound of Formula I, or a geometric isomer, enantiomer, diastereomer, racemate, atropisomer, pharmaceutically acceptable salt, prodrug or solvate thereof. The present disclosure further relates to a composition comprising the compound of Formula (I). The compound and the composition described herein can be used to inhibit NADPH oxidase activity.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: May 30, 2023
    Assignee: TAIWANJ PHARMACEUTICALS CO., LTD.
    Inventors: Syaulan S. Yang, Kuang Yuan Lee, Meng Hsien Liu, Yan-Feng Jiang, Yu-Shiou Fan, Chiung Wen Wang, Mei-Chi Hsu
  • Patent number: 11130771
    Abstract: A novel structure of an opioid antagonist is provided. One of the exemplary compounds of the present disclosure has the structure of Formula (II). The present disclosure overcomes the discomfort of conventional opioid antagonist due to rapid absorption and improves the patient compliance thereof.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: September 28, 2021
    Assignee: TAIWANJ PHARMACEUTICALS CO., LTD.
    Inventors: Syaulan S. Yang, Kuang Yuan Lee, Yan-Feng Jiang
  • Publication number: 20210276957
    Abstract: The present disclosure relates to a compound of Formula I, or a geometric isomer, enantiomer, diastereomer, racemate, atropisomer, pharmaceutically acceptable salt, prodrug or solvate thereof. The present disclosure further relates to a composition comprising the compound of Formula (I). The compound and the composition described herein can be used to inhibit NADPH oxidase activity.
    Type: Application
    Filed: June 20, 2019
    Publication date: September 9, 2021
    Applicant: TAIWANJ PHARMACEUTICALS CO., LTD.
    Inventors: Syaulan S. YANG, Kuang Yuan LEE, Meng Hsien LIU, Yan-Feng JIANG, Yu-Shiou FAN, Chiung Wen WANG, Mei-Chi HSU
  • Publication number: 20210261579
    Abstract: A novel structure of an opioid antagonist is provided. One of the exemplary compounds of the present disclosure has the structure of Formula (II). The present disclosure overcomes the discomfort of conventional opioid antagonist due to rapid absorption and improves the patient compliance thereof.
    Type: Application
    Filed: June 20, 2019
    Publication date: August 26, 2021
    Applicant: TAIWANJ PHARMACEUTICALS CO., LTD.
    Inventors: Syaulan S. YANG, Kuang Yuan LEE, Yan-Feng JIANG
  • Patent number: 11091421
    Abstract: The present disclosure provides a benzene fused heterocyclic derivative of Formula (I): is a single or double bond; n is an integer of 0 or 1; A is —CH2—, —CH(OH)—, or —C(O)—; G is C or N; X is —CH2—, O, or —C(O)—; Y is alkyl, aryl, or heterocyclic alkyl optionally substituted with at least one substituent independently selected from a group consisting of: H, halogen, alkyl, alkyl substituted with at least one halogen, aryl, aryl substituted with at least one halogen, —NRy1Ry2, —ORy1, —Ry1C(O)Ry3, —C(O)Ry1, —C(O)ORy2, —C(O)ORy2Ry3, —NRy1C(O)Ry2, —NRy1C(O)NRy2Ry3, —NRy1C(O)ORy2Ry3, —NRy1C(O)Ry2ORy3, C(O)NRy1(Ry2Ry3), —C(O)NRy1(Ry2ORy1), —ORy2Ry3, and —ORy2ORy3, wherein each of Ry1 and Ry2 is independently selected from a group consisting of H, oxygen, alkyl, and aryl, and Ry3 is aryl optionally substituted with at least one halogen; Z is —NRz1Rz2, —NRz1Rz3, —ORz1, —ORz1Rz3, —C(O)Rz1Rz3, —C(O)ORz1Rz3, —NRz1C(O)Rz2Rz3, —NRz1C(O)ORz2Rz3, —C(O)NRz1Rz3, or ORz2ORz3, wherein each of Rz1 and Rz2 is independently sel
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: August 17, 2021
    Assignee: TAIWANJ PHARMACEUTICALS CO., LTD.
    Inventors: Syaulan S. Yang, Kuang Yuan Lee, Meng Hsien Liu, Yan-Feng Jiang, Yu-Shiou Fan, Chi-Han Chen, Sheng Hung Liu
  • Publication number: 20210130316
    Abstract: Novel antagonists of toll-like receptor 4 (TLR-4) are provided. More specifically, the novel antagonists of TLR-4 are derived from morphinan. Further, use of said morphinan derivatives in the treatment of diseases and/or disorders mediated by TLR-4, such as autoimmune diseases, inflammation disease and infectious diseases, is provided. Pharmaceutical compositions including said morphinan derivatives are also provided.
    Type: Application
    Filed: December 19, 2017
    Publication date: May 6, 2021
    Applicant: TAIWANJ PHARMACEUTICALS CO., LTD
    Inventors: Syaulan S. YANG, Kuang-Yuan LEE, Edwin SC WU, Ming-Yu HSIAO, Hsiao-Chun WANG, Meng-Hsien LIU, Peter JS CHIU
  • Publication number: 20200247761
    Abstract: The present invention related to novel sulfonamides or amides as TLR-4 antagonists, and pharmaceutical formulations containing the same and the methods of use thereof. Uses of the present novel sulfonamides or amides include, but are not limited to, the prophylaxis and/or treatment of autoimmune, inflammation, or infection related disorders.
    Type: Application
    Filed: January 25, 2018
    Publication date: August 6, 2020
    Applicant: TAIWANJ PHARMACEUTICALS CO., LTD
    Inventors: Syaulan S. YANG, Kuang-Yuan LEE, Meng-Hsien LIU, Ming-Yu HSIAO, Huang-Kai PENG, Chiung-Wen WANG, Edwin SC WU, Peter JS CHIU
  • Publication number: 20200190010
    Abstract: The present disclosure provides a benzene fused heterocyclic derivative of Formula (I): is a single or double bond; n is an integer of 0 or 1; A is —CH2—, —CH(OH)—, or —C(O)—; G is C or N; X is —CH2—, O, or —C(O)—; Y is alkyl, aryl, or heterocyclic alkyl optionally substituted with at least one substituent independently selected from a group consisting of: H, halogen, alkyl, alkyl substituted with at least one halogen, aryl, aryl substituted with at least one halogen, —NRy1Ry2, —ORy1, —Ry1C(O)Ry3, —C(O)Ry1, —C(O)ORy2, —C(O)ORy2Ry3, —NRy1C(O)Ry2, —NRy1C(O)NRy2Ry3, —NRy1C(O)ORy2Ry3, —NRy1C(O)Ry2ORy3, C(O)NRy1(Ry2Ry3), —C(O)NRy1(Ry2ORy1), —ORy2Ry3, and —ORy2ORy3, wherein each of Ry1 and Ry2 is independently selected from a group consisting of H, oxygen, alkyl, and aryl, and Ry3 is aryl optionally substituted with at least one halogen; Z is —NRz1Rz2, —NRz1Rz3, —ORz1, —ORz1Rz3, —C(O)Rz1Rz3, —C(O)ORz1Rz3, —NRz1C(O)Rz2Rz3, —NRz1C(O)ORz2Rz3, —C(O)NRz1Rz3, or ORz2ORz3, wherein each of Rz1 and Rz2 is independently sel
    Type: Application
    Filed: September 7, 2018
    Publication date: June 18, 2020
    Applicant: TAIWANJ PHARMACEUTICALS CO., LTD.
    Inventors: Syaulan S. YANG, Kuang Yuan LEE, Meng Hsien LIU, Yan-Feng JIANG, Yu-Shiou FAN, Chi-Han CHEN, Sheng Hung LIU
  • Publication number: 20200157088
    Abstract: The present disclosure provides a benzene fused heterocyclic compound of Formula (I): wherein (A) is a single or double bond; n is 0 or 1; X is —CH2—, O, NR1, or S; A is —C(Ra1)(Ra2)(Ra3) or —N(Ra1)(Ra2), wherein Ra1, Ra2 and Ra3 are independently selected from a group consisting of: H, alkyl, cycloalkyl, heterocyclic alkyl, aryl, heteroaryl, C1-C3 hydrocarbon, —RaaORbb, —C(O)ORaaRbb, —C(O)RaaRbb, —C(O)NRaaRbb, —SO2 RaaRbb and —SO2 NRaaRbb which are optionally substituted by at least one substituent independently selected from a group consisting of: alkyl, cycloalkyl, heterocyclic alkyl, aryl, —Ybb, —ArbbYbb, —ORcc, and —OArbbYbb, wherein Raa, Rbb and Rcc independently are nil, H, halogen, alkyl, or aryl, Ybb is CN or halogen, and Araa and Arbb independently are aryl or heteroaryl; R1 is H or alkyl; R2 is alkyl, cycloalkyl, heterocylic alkyl, aryl, heteroaryl, C1-C6 hydrocarbon optionally substituted by at least one substituent independently selected from a group consisting of: —R2aOR2b, —R2aC(O)OR2bR2c, —R2a
    Type: Application
    Filed: November 30, 2018
    Publication date: May 21, 2020
    Applicant: TAIWANJ PHARMACEUTICALS CO., LTD.
    Inventors: Syaulan S. YANG, Kuang Yuan LEE, Yan-Feng JIANG, Yu-Shiou FAN, Meng Hsien LIU, Sheng Hung LIU, Jhih-Liang HUANG
  • Patent number: 8389560
    Abstract: This invention relates to macrocyclic compounds of formula (I) shown in the specification. These compounds can be used to treat hepatitis C virus infection.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: March 5, 2013
    Assignee: TaiGen Biotechnology Co., Ltd.
    Inventors: Chen-Fu Liu, Kuang-Yuan Lee, Pei-Chin Cheng, Yo-Chin Liu, Pin Lo, Kuo-Feng Tseng, Chih-Ming Chen, Chi-Hsin Richard King, Chu-Chung Lin
  • Publication number: 20110178107
    Abstract: This invention relates to compounds of Formula (I), (II), or (III) shown in the specification. These compounds can be used to treat hepatitis C virus infection.
    Type: Application
    Filed: January 19, 2011
    Publication date: July 21, 2011
    Applicant: TaiGen Biotechnology Co., Ltd.
    Inventors: Ching-Cheng Wang, Chen-Fu Liu, Kuang-Yuan Lee, Mei-Chun Lin, Shu-Huei Wang, Chi-Feng Yen, Yu-Hsuan Wang, Chi-Hsin Richard King
  • Publication number: 20110065737
    Abstract: This invention relates to macrocyclic compounds of formula (I) shown in the specification. These compounds can be used to treat hepatitis C virus infection.
    Type: Application
    Filed: September 15, 2009
    Publication date: March 17, 2011
    Applicant: TaiGen Biotechnology Co., Ltd.
    Inventors: Chen-Fu Liu, Kuang-Yuan Lee, Pei-Chin Cheng, Yo-Chin Liu, Pin Lo, Kuo-Feng Tseng, Chih-Ming Chen, Chi-Hsin Richard King, Chu-Chung Lin
  • Publication number: 20090286814
    Abstract: This invention relates to macrocyclic compounds of formula (I) or (II) shown in the specification. These compounds can be used to treat hepatitis C virus infection.
    Type: Application
    Filed: November 4, 2008
    Publication date: November 19, 2009
    Applicant: TaiGen Biotechnology Co., Ltd.
    Inventors: Chu-chung Lin, Kuang-Yuan Lee, Yo-chin Liu, Pin Lo, Rong-Jiunn Chen, Chen-Fu Liu, Chih-Ming Chen, Chi-Hsin Richard King
  • Publication number: 20090111757
    Abstract: Compounds of formula (I): in which R1, R2, R3 R4, and R5, U, X, Y, and Z are as defined herein. Also disclosed is use of these compounds, alone or in combination with other active agents, to treat hepatitis C virus infection.
    Type: Application
    Filed: October 20, 2008
    Publication date: April 30, 2009
    Applicant: TaiGen Biotechnology Co., Ltd.
    Inventors: Chu-Chung Lin, Kuang-Yuan Lee, Chen-Fu Liu, Pin Lo, Yo-Chin Liu, Yueh-chiang Han, Chi-Hsin Richard King
  • Publication number: 20080207528
    Abstract: This invention relates to the compounds of formula (I) shown below. Each variable in formula (I) is defined in the specification. These compounds can be used to treat hepatitis C virus infection.
    Type: Application
    Filed: January 31, 2008
    Publication date: August 28, 2008
    Inventors: Syaulan Yang, Kuang-Yuan Lee, Rong-Juinn Chen, Pin Lo, Shao-Ying Liao, Jen-Dar Wu, Chi-Hsin Richard King
  • Publication number: 20060036093
    Abstract: This invention relates to treating inflammatory and immune diseases with certain pyrimidinone compounds that bind to CXCR3 receptors. The pyrimidinone compounds are covered by the formula (I) shown below. Each variable is defined in the specification.
    Type: Application
    Filed: August 16, 2005
    Publication date: February 16, 2006
    Inventors: Chu-Chung Lin, Hong-Chuan Chen, Kuang-Yuan Lee, Ying-Huey Huang, Yang-Ping Fan, Yibin Xiang