Patents by Inventor Qingfeng Xing

Qingfeng Xing 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: 11840535
    Abstract: Provided is an alkynyl(hetero)aromatic compound having an inhibitory effect to protein tyrosine kinase, a pharmaceutical composition comprising same, preparation and usage thereof. Specifically, disclosed is an alkynyl(hetero)aromatic compound as shown in formula (I), wherein rings A, R1, R2, R3, R4, R5, L, and B are defined in the description, a pharmaceutically acceptable salt, a stereoisomer, a solvate, a hydrate, a crystal form, a prodrug or an isotopic variant thereof. The compound can be used for treating and/or preventing protein tyrosine kinase-related diseases, such as anti-tumor.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: December 12, 2023
    Assignee: Shenzhen TargetRx, Inc.
    Inventors: Yihan Wang, Qingfeng Xing
  • Patent number: 11746110
    Abstract: Disclosed are alkynyl (hetero) aromatic ring compounds that inhibit protein tyrosine kinases, pharmaceutical compositions comprising same, preparations therefor and uses thereof. Specifically, disclosed are an alkynyl (hetero) aromatic ring compound represented by formula (I), and a pharmaceutically acceptable salt, a stereoisomer, a solvate, a hydrate, a crystal form, a prodrug or an isotope variant thereof. The disclosed compounds may be used in the treatment and/or prevention of diseases associated with protein tyrosine kinase, such as in preventing tumors.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: September 5, 2023
    Assignee: Shenzhen TargetRx, Inc.
    Inventors: Yihan Wang, Qingfeng Xing, Yixin Ai
  • Publication number: 20220380375
    Abstract: Provided in the present invention are a substituted aromatic fused ring derivative, a composition comprising the compound, and the use thereof. The substituted aromatic fused ring derivative is a compound as shown as formula (I) or a tautomer, stereoisomer, prodrug, crystal form, pharmaceutically acceptable salt, hydrate or solvate thereof. The compound and the composition of the present invention can be used to treat various protein tyrosine kinase-mediated diseases or conditions.
    Type: Application
    Filed: March 18, 2022
    Publication date: December 1, 2022
    Applicant: Shenzhen TargetRx, Inc.
    Inventors: Yihan Wang, Qingfeng Xing, Yixin Ai, Huanyin Li
  • Publication number: 20220098204
    Abstract: Provided are a substituted fused aromatic ring derivative, a composition containing the compound, and a use thereof. The substituted fused aromatic ring derivative is a compound represented by formula (I) or a tautomer, stereoisomer, prodrug, crystal form, pharmaceutically acceptable salt, hydrate or solvate thereof. The compound and the composition can be used to treat various protein tyrosine kinase-mediated diseases or disorders.
    Type: Application
    Filed: February 13, 2020
    Publication date: March 31, 2022
    Applicant: Shenzhen TargetRX, Inc.
    Inventors: Yihan Wang, Qingfeng Xing, Yixin Ai
  • Publication number: 20220041607
    Abstract: A fused bicyclic compound having an effect in inhibition of the activity of a tyrosine kinase, and preparation and use thereof are disclosed. In particular, a compound of formula (I) or a pharmaceutically acceptable salt, a stereoisomer, a solvate, a hydrate, a polymorph, a prodrug or an isotopic variation thereof, as well as a pharmaceutical composition including the same are disclosed. As a selective irreversible inhibitor of Bruton's tyrosine kinase, the described compound can be used for preventing or treating diseases such as inflammation, autoimmune diseases (such as rheumatoid arthritis), xenogeneic immune diseases and cancers.
    Type: Application
    Filed: October 26, 2021
    Publication date: February 10, 2022
    Applicant: Shenzhen TargetRx, Inc.
    Inventors: Yihan Wang, Qingfeng Xing
  • Patent number: 11186578
    Abstract: A fused bicyclic compound having an effect in inhibition of the activity of a tyrosine kinase, and preparation, compositions, and uses thereof are disclosed. In particular, compounds of formula (I) and (II), or a pharmaceutically acceptable salt, a stereoisomer, a solvate, a hydrate, a polymorph, a prodrug or an isotopic variation thereof, as well as a pharmaceutical composition including the same are disclosed. Compounds disclosed herein are substituted pyrrolo[3,2-d]pyrimidines and are selective irreversible inhibitors of Bruton's tyrosine kinase. The described compounds can therefore be used for preventing or treating diseases such as inflammation, autoimmune diseases (such as rheumatoid arthritis), xenogeneic immune diseases and cancers.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: November 30, 2021
    Assignee: Shenzhen TargetRx, Inc.
    Inventors: Yihan Wang, Qingfeng Xing
  • Publication number: 20210284646
    Abstract: Provided is an alkynyl(hetero)aromatic compound having an inhibitory effect to protein tyrosine kinase, a pharmaceutical composition comprising same, preparation and usage thereof. Specifically, disclosed is an alkynyl(hetero)aromatic compound as shown in formula (I), wherein rings A, R1, R2, R3, R4, R5, L, and B are defined in the description, a pharmaceutically acceptable salt, a stereoisomer, a solvate, a hydrate, a crystal form, a prodrug or an isotopic variant thereof. The compound can be used for treating and/or preventing protein tyrosine kinase-related diseases, such as anti-tumor.
    Type: Application
    Filed: June 28, 2019
    Publication date: September 16, 2021
    Applicant: Shenzhen TargetRx, Inc.
    Inventors: Yihan Wang, Qingfeng Xing
  • Publication number: 20210269448
    Abstract: Disclosed are alkynyl (hetero) aromatic ring compounds that inhibit protein tyrosine kinases, pharmaceutical compositions comprising same, preparations therefor and uses thereof. Specifically, disclosed are an alkynyl (hetero) aromatic ring compound represented by formula (I), and a pharmaceutically acceptable salt, a stereoisomer, a solvate, a hydrate, a crystal form, a prodrug or an isotope variant thereof. The disclosed compounds may be used in the treatment and/or prevention of diseases associated with protein tyrosine kinase, such as in preventing tumors.
    Type: Application
    Filed: July 16, 2019
    Publication date: September 2, 2021
    Applicant: Shenzhen TargetRx, Inc.
    Inventors: Yihan Wang, Qingfeng Xing, Yixin Ai
  • Publication number: 20210070758
    Abstract: A fused bicyclic compound having an effect in inhibition of the activity of a tyrosine kinase, and preparation and use thereof are disclosed. In particular, a compound of formula (I) or a pharmaceutically acceptable salt, a stereoisomer, a solvate, a hydrate, a polymorph, a prodrug or an isotopic variation thereof, as well as a pharmaceutical composition including the same are disclosed. As a selective irreversible inhibitor of Bruton's tyrosine kinase, the described compound can be used for preventing or treating diseases such as inflammation, autoimmune diseases (such as rheumatoid arthritis), xenogeneic immune diseases and cancers.
    Type: Application
    Filed: August 16, 2017
    Publication date: March 11, 2021
    Applicant: Shenzhen TargetRx. Inc.
    Inventors: Yihan Wang, Qingfeng Xing