Patents by Inventor Jiangtao CHI

Jiangtao CHI 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: 20220162169
    Abstract: Specifically, the present invention relates to the 6-oxo-1,6-dihydropyridazine prodrug derivative shown in general formula (I), a preparation method therefor, a pharmaceutical composition containing the derivative, a use thereof as a NaV inhibitor, and a use thereof in the preparation of a drug for the treatment and/or prevention of pain and pain-related diseases.
    Type: Application
    Filed: February 19, 2020
    Publication date: May 26, 2022
    Inventors: Fanglong YANG, Nan YU, Jiangtao CHI, Zhiwei LIU, Feng HE, Weikang TAO
  • Publication number: 20220073471
    Abstract: A 6-oxo-1,6-dihydropyridazine derivative, a preparation method therefor and medical use thereof, in particular, a 6-oxo-1,6-dihydropyridazine derivative represented by general formula (I), a preparation method therefor, and a pharmaceutical composition containing the derivative, and use thereof as a Nav inhibitor and use thereof in the preparation of a drug for the treatment and/or prevention of pain and pain-related diseases. Each substituent in general formula (I) is the same as defined in the description.
    Type: Application
    Filed: January 3, 2020
    Publication date: March 10, 2022
    Inventors: Fanglong YANG, Nan YU, Jiangtao CHI, Feng HE, Weikang TAO
  • Patent number: 10899764
    Abstract: The present invention relates to an imidazo isoindole derivative, a preparation method therefor and a medical use thereof. In particular, the present invention relates to the imidazo isoindole derivative as shown in the formula (I), a preparation method and pharmaceutical composition containing the derivative, and a use thereof for treating diseases with a pathological characteristic of the IDO-mediated tryptophan metabolic pathways. The diseases comprise cancers, Alzheimer's disease, autoimmune diseases, depression, anxiety disorders, cataracts, psychological disorders and AIDS, wherein the substituents in the formula (I) are the same as those defined in the specification.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: January 26, 2021
    Assignees: JIANGSU HENGRUI MEDICINE CO., LTD., SHANGHAI HENGRUI PHRMACEUTICAL CO., LTD.
    Inventors: Wangyang Tu, Guoji Xu, Haitang Zhang, Jiangtao Chi, Qing Dong
  • Patent number: 10064848
    Abstract: Compounds for the preparation of pyridone derivatives are provided. In particular, compounds of formula (IA) are provided, wherein the variable groups are as defined in the specification. The compounds of formula (IA) can be used as intermediates in the preparation of pyridone derivatives useful as mitogen-activated protein kinase kinase (MEK) inhibitors and therapeutic agents for treating cancer.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: September 4, 2018
    Assignees: Shanghai Hengrui Pharmaceutical Co., Ltd., Jiangsu Hengrui Medicine Co., Ltd.
    Inventors: Wangyang Tu, Haitang Zhang, Guoji Xu, Jiangtao Chi
  • Publication number: 20180118750
    Abstract: The present invention relates to an imidazo isoindole derivative, a preparation method therefor and a medical use thereof. In particular, the present invention relates to the imidazo isoindole derivative as shown in the formula (I), a preparation method and pharmaceutical composition containing the derivative, and a use thereof for treating diseases with a pathological characteristic of the IDO-mediated tryptophan metabolic pathways. The diseases comprise cancers, Alzheimer's disease, autoimmune diseases, depression, anxiety disorders, cataracts, psychological disorders and AIDS, wherein the substituents in the formula (I) are the same as those defined in the specification.
    Type: Application
    Filed: April 12, 2016
    Publication date: May 3, 2018
    Applicants: Jiangsu Hengrui Medicine Co., Ltd., Shanghai Hengrui Pharmaceutical Co., Ltd.
    Inventors: Wangyang TU, Guoji XU, Haitang ZHANG, Jiangtao CHI, Qing DONG
  • Patent number: 9914703
    Abstract: Pyridone derivatives, methods of preparing the pyridone derivatives, and methods of using the pyridone derivatives are provided. In particular, pyridone derivatives of formula (I), and pharmaceutical salts thereof are provided. The pyridone derivatives are useful as mitogen-activated protein kinase kinase (MEK) inhibitors, and can be used as therapeutic agents for treating cancer.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: March 13, 2018
    Assignees: Shanghai Hengrui Pharmaceutical Co., Ltd., Jiangsu Hengrui Medicine Co., Ltd.
    Inventors: Wangyang Tu, Haitang Zhang, Guoji Xu, Jiangtao Chi
  • Publication number: 20180016236
    Abstract: Compounds for the preparation of pyridone derivatives are provided. In particular, compounds of formula (IA) are provided, wherein the variable groups are as defined in the specification. The compounds of formula (IA) can be used as intermediates in the preparation of pyridone derivatives useful as mitogen-activated protein kinase kinase (MEK) inhibitors and therapeutic agents for treating cancer.
    Type: Application
    Filed: September 28, 2017
    Publication date: January 18, 2018
    Inventors: Wangyang TU, Haitang ZHANG, Guoji XU, Jiangtao CHI
  • Publication number: 20160244410
    Abstract: Pyridone derivatives, methods of preparing the pyridone derivatives, and methods of using the pyridone derivatives are provided. In particular, pyridone derivatives of formula (I), and pharmaceutical salts thereof are provided. The pyridone derivatives are useful as mitogen-activated protein kinase kinase (MEK) inhibitors, and can be used as therapeutic agents for treating cancer.
    Type: Application
    Filed: September 5, 2014
    Publication date: August 25, 2016
    Inventors: Wangyang TU, Haitang ZHANG, Guoji XU, Jiangtao CHI