Patents by Inventor Wenjian Qian

Wenjian Qian 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: 11897863
    Abstract: Indazole derivatives represented by formula (I) or stereoisomers, tautomers, and pharmaceutically acceptable salts thereof are provided. A preparation method of indazole derivatives represented by formula (I) and a method of use of the indazole derivatives as therapeutic agents is also provided.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: February 13, 2024
    Assignee: ZHEJIANG HISUN PHARMACEUTICAL CO., LTD.
    Inventors: Yongping Lu, Cheng Ye, Wenjian Qian, Taishan Hu, Lei Chen
  • Publication number: 20230373972
    Abstract: The present disclosure relates to a piperazine derivative, a preparation method therefor, and use thereof in medicine. Specifically, the present invention relates to a piperazine derivative represented by general formula (I), a preparation method therefor, and a pharmaceutically acceptable salt or prodrug thereof, and use thereof as a therapeutic agent, in particular, as an inhibitor of coagulation factor XIa (FXIa), wherein the definition of each substituent in general formula (I) is the same as that in the description.
    Type: Application
    Filed: September 16, 2021
    Publication date: November 23, 2023
    Applicants: Zhejiang Hisun Pharmaceutical Co., Ltd., Shanghai Aryl Pharmtec Co., Ltd.
    Inventors: Haibo QIU, Yutao MA, Ahuan CHEN, Yabo ZHU, Binhao ZHANG, Yongping LU, Cheng YE, Taishan HU, Wenjian QIAN, Lei CHEN
  • Publication number: 20230295163
    Abstract: The present invention relates to a tetracyclic derivative, a method for preparing same and the use thereof in medicine. In particular, the present invention relates to a tetracyclic derivative represented by general formula (I), a method for preparing same and a pharmaceutically acceptable salt thereof, and the use thereof as a therapeutic agent, especially as a K-Ras GTPase inhibitor, with definitions of each substituent in general formula (I) being the same as of which are defined in the description.
    Type: Application
    Filed: August 19, 2021
    Publication date: September 21, 2023
    Applicants: ZHEJIANG HISUN PHARMACEUTICAL CO., LTD., SHANGHAI ARYL PHARMTECH CO., LTD.
    Inventors: Youxi CHEN, Chaoying CHENG, Liang GONG, Wentao MAO, Qing XIANG, Weifeng ZHAO, Wenwen ZHAO, Yanling HE, Mingjiang ZHU, Cheng YE, Taishan HU, Wenjian QIAN, Lei CHEN
  • Publication number: 20220177450
    Abstract: The present invention relates to a piperazine amide derivative as represented by formula (I) or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition thereof, and use of same as a therapeutic agent, especially as a selective Rearranged During Transfection (RET) kinase inhibitor. Ring a, ring e, X1, X2, X3, X4, R1, R2, R3, R4, R4?, R5, R5?, R6, R6?, R7, R7?, R8, m and n have the same definitions as those in the specification.
    Type: Application
    Filed: April 9, 2020
    Publication date: June 9, 2022
    Applicant: ZHEJIANG HISUN PHARMACEUTICAL CO., LTD.
    Inventors: Panpan ZHANG, Sunli YAN, Ying LI, Chenli GUO, Wenjian QIAN, Cheng YE, Zhengzheng SHI, Taishan HU, Lei CHEN
  • Publication number: 20210309636
    Abstract: Indazole derivatives represented by formula (I) or stereoisomers, tautomers, and pharmaceutically acceptable salts thereof are provided. A preparation method of indazole derivatives represented by formula (I) and a method of use of the indazole derivatives as therapeutic agents is also provided.
    Type: Application
    Filed: August 15, 2019
    Publication date: October 7, 2021
    Inventors: Yongping LU, Cheng YE, Wenjian QIAN, Taishan HU, Lei CHEN
  • Publication number: 20200131123
    Abstract: A solid dispersion, a method for preparing same, and a solid preparation comprising the solid dispersion. The solid dispersion contains (R)-4-amino-1-(1-(but-2-ynylacyl)pyrrolidin-3-yl)-3-(4-(2,6-difluorophenoxy)phenyl)-1,6-dihydro-7H-pyrrolo[2,3-d]pyridazine-7-one or a pharmaceutically acceptable salt thereof, and a carrier material. The carrier material is selected from hydroxypropyl methylcellulose acetate succinate and hydroxypropyl methylcellulose phthalate.
    Type: Application
    Filed: July 5, 2018
    Publication date: April 30, 2020
    Inventors: Dong LIU, Biao LU, Wenjian QIAN, Huaide DONG, Suxing LIU, Rumin ZHANG, Feng HE, Weikang TAO
  • Publication number: 20190144499
    Abstract: The present invention provides a phenylpropanamide derivative as represented by formula (I), a manufacturing method of the derivative, application of the derivative as a ?-opioid receptor (KOR) agonist, and application of the derivative for manufacturing a pharmaceutical product for treating and/or preventing pain or a pain-related disease.
    Type: Application
    Filed: June 6, 2017
    Publication date: May 16, 2019
    Inventors: Xin LI, Bin WANG, Wenjian QIAN, Yang CHEN, Feng HE, Weikang TAO
  • Patent number: 10047122
    Abstract: The invention provides novel compounds that may serve as anticancer therapeutics. The compounds of the invention bind to polo-like kinases through the polo-box domain. In certain embodiments, the compounds of the invention are POM-protected peptide derivatives. The use of cationic bis-alkyl his residues in combination with a mono POM-protected phophoryl group results in a peptide possessing an overall neutral charge. The peptide derivatives of the invention have achieved both good efficacy and an enhanced bioavailability. The invention also provides methods of use, compositions, and kits thereof. Further, the invention provides a novel method of design and/or synthesis of phosphoryl-derived peptide derivatives useful as therapeutic agents.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: August 14, 2018
    Assignee: The United States of America, as represented by the Secretary, Department of Health & Human Services
    Inventors: Wenjian Qian, Jung Eun Park, Christopher C. Lai, James A. Kelley, Kyung S. Lee, Terrence R. Burke, Jr.
  • Publication number: 20160039872
    Abstract: The invention provides novel compounds that may serve as anticancer therapeutics. The compounds of the invention bind to polo-like kinases through the polo-box domain. In certain embodiments, the compounds of the invention are POM-protected peptide derivatives. The use of cationic bis-alkyl his residues in combination with a mono POM-protected pho-phoryl group results in a peptide possessing an overall neutral charge. The peptide derivatives of the invention have achieved both good efficacy and an enhanced bioavailability. The invention also provides methods of use, compositions, and kits thereof. Further, the invention provides a novel method of design and/or synthesis of phosphoryl-derived peptide derivatives useful as therapeutic agents.
    Type: Application
    Filed: March 14, 2014
    Publication date: February 11, 2016
    Inventors: Wenjian Qian, Jung Eun Park, Christopher C. Lai, James A. Kelley, Kyung S. Lee, Terrence R. Burke, JR.
  • Publication number: 20140142044
    Abstract: Novel compounds are provided that bind to polo-like kinases through the polo-box domain. In certain embodiments, the novel compounds are PEGylated peptides. The PEGylated peptides in accordance with the invention demonstrate high PBD-binding affinity. In certain embodiments, the PEGylated peptides have also achieved activities in whole cell systems. The invention also provides compounds that bind polo-like kinases through the polo-box domain and possess reduced anionic charge. Further provided are methods of design and/or synthesis of the PEGylated peptides and methods of use thereof. The invention provides methods of use of the compounds and methods of synthesis of the compounds. The compounds of the invention have potential therapeutic activity in view of their binding and inhibitory activities towards Plk1. They are based on the amino acid sequence PLHSpT (phosphorylated Thr). The PEG moiety, when present, is covalently attached at the N-terminus.
    Type: Application
    Filed: April 12, 2012
    Publication date: May 22, 2014
    Applicant: The United States of America, as represented by the Secretary, Department of Health & Human Servic
    Inventors: Terrence R. Burke, JR., Wenjian Qian, Fa Liu, Kyung S. Lee, Jung-Eun Park