Patents by Inventor Xiaowu DONG

Xiaowu DONG 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: 20230295144
    Abstract: The present invention provides a 2-polysubstituted aromatic ring-pyrimidine derivative and an optical isomer thereof, or a pharmaceutically acceptable salt or solvate thereof, the compound, and an optical isomer thereof or a pharmaceutically thereof acceptable salts or solvates can be used in the preparation of anti-tumor drugs. The invention designs and synthesizes a series of novel small molecule Chk1 inhibitors by using N-substituted pyridin-2-aminopyrimidine obtained by structure-based virtual screening as a lead compound, and carries out Chk1 kinase inhibitory activity test. The experiment confirmed that said compounds possess potent anticancer activity, Chk1 kinase inhibitory activity, and are promising Chk1 inhibitors, and can be used as new cancer therapeutic drugs, which can be applied to treat solid tumors or hematologic tumors related to proliferative disease of human or animal.
    Type: Application
    Filed: January 24, 2023
    Publication date: September 21, 2023
    Inventors: Tao Liu, Jia Li, Yongzhou Hu, Yubo Zhou, Xiaowu Dong, Anhui Gao, Pinrao Song, Peipei Wang, Lexian Tong, Xiaobei Hu, Mingbo Su
  • Patent number: 11591325
    Abstract: The present invention provides a 2-polysubstituted aromatic ring-pyrimidine derivative and an optical isomer thereof, or a pharmaceutically acceptable salt or solvate thereof, the compound, and an optical isomer thereof or a pharmaceutically thereof acceptable salts or solvates can be used in the preparation of anti-tumor drugs. The invention designs and synthesizes a series of novel small molecule Chk1 inhibitors by using N-substituted pyridin-2-aminopyrimidine obtained by structure-based virtual screening as a lead compound, and carries out Chk1 kinase inhibitory activity test. The experiment confirmed that said compounds possess potent anticancer activity, Chk1 kinase inhibitory activity, and are promising Chk1 inhibitors, and can be used as new cancer therapeutic drugs, which can be applied to treat solid tumors or hematologic tumors related to proliferative disease of human or animal.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: February 28, 2023
    Assignees: ZHEJIANG UNIVERSITY, SHANGHAI INSTITUTE OF MATERIA MEDICA, CHINESE ACADEMY OF SCIENCES
    Inventors: Tao Liu, Jia Li, Yongzhou Hu, Yubo Zhou, Xiaowu Dong, Anhui Gao, Pinrao Song, Peipei Wang, Lexian Tong, Xiaobei Hu, Mingbo Su
  • Patent number: 11319300
    Abstract: A polyfluoro-substituted aromatic heterocyclic derivative having the structure as represented by formula I or formula I?, wherein at least one of R1 and R2 is a fluorine atom, and at least two substituents of Rc, Rd, Re, and Rf are fluorine atoms; and an optical isomer of the derivative, or a pharmaceutically acceptable salt or solvate of the same, or a pharmaceutically acceptable salt or solvate of the optical isomer of the same. A composition containing the polyfluoro-substituted aromatic heterocyclic derivative and an application of the composition in preparing an anti-tumour medicament. The compound provides significant inhibitory effects with respect to Akt1 and demonstrates strong proliferation inhibitory activity with respect to tumour cell lines such as an ovarian cancer cell line, a colon cancer cell line, and a prostate cancer cell line.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: May 3, 2022
    Assignee: GUANGZHOU LIXIN PHARMACEUTICAL CO., LTD.
    Inventors: Xiaowu Dong, Bo Yang, Yongzhou Hu, Qiaojun He, Qinjie Weng, Wenhu Zhan, Tao Liu
  • Publication number: 20210284625
    Abstract: The present invention provides a 2-polysubstituted aromatic ring-pyrimidine derivative and an optical isomer thereof, or a pharmaceutically acceptable salt or solvate thereof, the compound, and an optical isomer thereof or a pharmaceutically thereof acceptable salts or solvates can be used in the preparation of anti-tumor drugs. The invention designs and synthesizes a series of novel small molecule Chk1 inhibitors by using N-substituted pyridin-2-aminopyrimidine obtained by structure-based virtual screening as a lead compound, and carries out Chk1 kinase inhibitory activity test. The experiment confirmed that said compounds possess potent anticancer activity, Chk1 kinase inhibitory activity, and are promising Chk1 inhibitors, and can be used as new cancer therapeutic drugs, which can be applied to treat solid tumors or hematologic tumors related to proliferative disease of human or animal.
    Type: Application
    Filed: November 8, 2017
    Publication date: September 16, 2021
    Inventors: Tao Liu, Jia Li, Yongzhou Hu, Yubo Zhou, Xiaowu Dong, Anhui Gao, Pinrao Song, Peipei Wang, Lexian Tong, Xiaobei Hu, Mingbo Su
  • Patent number: 10822327
    Abstract: A 2-substituted aromatic ring-pyrimidine derivative as shown in a general formula I, and an optical isomer or a pharmaceutically acceptable salt or a solvate thereof are provided. The present invention designs and synthesizes a series of novel small molecular Chk1 inhibitors by using N-substituted pyridin-2-aminopyrimidine obtained through structure-based virtual screening as a lead compound, and carries out Chk1 kinase inhibitory activity test. The experiment confirmed that said compounds possess strong anti-cancer effect, Chk1 kinase inhibitory activity and are promising Chk1 inhibitors. The compounds can be used as new cancer therapeutic drugs, which can be applied to treat solid tumors or hematologic tumors related to proliferative disease of human or animal.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: November 3, 2020
    Assignees: ZHEJIANG UNIVERSITY, SHANGHAI INSTITUTE OF MATERIA MEDICA, CHINESE ACADEMY OF SCIENCES
    Inventors: Tao Liu, Jia Li, Yongzhou Hu, Yubo Zhou, Xiaowu Dong, Anhui Gao, Pinrao Song, Peipei Wang, Lexian Tong, Xiaobei Hu, Mingbo Su
  • Publication number: 20200165229
    Abstract: A polyfluoro-substituted aromatic heterocyclic derivative having the structure as represented by formula I or formula I?, wherein at least one of Ri and R2 is a fluorine atom, and at least two substituents of Rc, Rd, Re, and Rf are fluorine atoms; and an optical isomer of the derivative, or a pharmaceutically acceptable salt or solvate of the same, or a pharmaceutically acceptable salt or solvate of the optical isomer of the same. A composition containing the polyfluoro-substituted aromatic heterocyclic derivative and an application of the composition in preparing an anti-tumour medicament. The compound provides significant inhibitory effects with respect to Aktl and demonstrates strong proliferation inhibitory activity with respect to tumour cell lines such as an ovarian cancer cell line, a colon cancer cell line, and a prostate cancer cell line.
    Type: Application
    Filed: January 19, 2018
    Publication date: May 28, 2020
    Inventors: Xiaowu DONG, Bo YANG, Yongzhou HU, Qiaojun HE, Qinjie WENG, Wenhu ZHAN, Tao LIU
  • Publication number: 20190375727
    Abstract: A 2-substituted aromatic ring-pyrimidine derivative as shown in a general formula I, and an optical isomer or a pharmaceutically acceptable salt or a solvate thereof are provided. The present invention designs and synthesizes a series of novel small molecular Chk1 inhibitors by using N-substituted pyridin-2-aminopyrimidine obtained through structure-based virtual screening as a lead compound, and carries out Chk1 kinase inhibitory activity test. The experiment confirmed that said compounds possess strong anti-cancer effect, Chk1 kinase inhibitory activity and are promising Chk1 inhibitors. The compounds can be used as new cancer therapeutic drugs, which can be applied to treat solid tumors or hematologic tumors related to proliferative disease of human or animal.
    Type: Application
    Filed: November 8, 2017
    Publication date: December 12, 2019
    Inventors: Tao Liu, Jia Li, Yongzhou Hu, Yubo Zhou, Xiaowu Dong, Anhui Gao, Pinrao Song, Peipei Wang, Lexian Tong, Xiaobei Hu, Mingbo Su
  • Patent number: 10233180
    Abstract: Disclosed are new substituted nitrogen-containing heterocyclic derivatives represented by formula (I) as AKT inhibitors, optical isomers, pharmaceutically acceptable salts or solvates thereof, wherein the definition of R1, R2, R3, R4, R5, R6, ring A, ring C, B, Q, Y, Z and m is shown in the description for details. In addition, medicaments comprising the derivatives as active components are also disclosed, which can be useful for treating proliferative diseases, such as cancer and inflammation, especially diseases relating to AKT kinase.
    Type: Grant
    Filed: March 21, 2015
    Date of Patent: March 19, 2019
    Assignees: ZHEJIANG UNIVERSITY, SHANGHAI INSTITUTE OF MATERIA MEDICA, CHINESE ACADEMY OF SCIENCES
    Inventors: Xiaowu Dong, Jia Li, Bo Yang, Yongzhou Hu, Yubo Zhou, Qinjie Weng, Wenhu Zhan, Lei Xu, Tao Liu, Qiaojun He
  • Publication number: 20170107213
    Abstract: Disclosed are new substituted nitrogen-containing heterocyclic derivatives represented by formula (I) as AKT inhibitors, optical isomers, pharmaceutically acceptable salts or solvates thereof, wherein the definition of R1, R2, R3, R4, R5, R6, ring A, ring C, B, Q, Y, Z and m is shown in the description for details. In addition, medicaments comprising the derivatives as active components are also disclosed, which can be useful for treating proliferative diseases, such as cancer and inflammation, especially diseases relating to AKT kinase.
    Type: Application
    Filed: March 21, 2015
    Publication date: April 20, 2017
    Inventors: Xiaowu DONG, Jia LI, Bo YANG, Yongzhou HU, Yubo ZHOU, Qinjie WENG, Wenhu ZHAN, Lei XU, Tao LIU, Qiaojun HE
  • Patent number: D1016010
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: February 27, 2024
    Assignee: Huizhou Jinghao Medical Technology Co., Ltd.
    Inventors: Huadong Wang, Ping Dong, Xiaowu Zhu