Patents by Inventor Zhenxing DU

Zhenxing DU 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: 20230331731
    Abstract: Provided are a crystal form of a pyrrolo heterocyclic derivative and a preparation method therefor. Specifically, the present invention relates to a crystal form of a pharmaceutically acceptable salt of a compound as represented by formula (I) and a preparation method therefor. The provided crystal form of the pharmaceutically acceptable salt of the compound as represented by formula (I) has a good stability and can be better used in clinical treatment.
    Type: Application
    Filed: September 29, 2021
    Publication date: October 19, 2023
    Inventors: Xianqiang ZHOU, Cheng SHAO, Lingfeng YOU, Zhenxing DU, Jie WANG
  • Publication number: 20230058425
    Abstract: The present disclosure relates to a crystal form of a pyridopyrimidine derivative and a preparation method thereof, and specifically relates to the crystal form of the compound of formula (I) and a preparation method thereof. The new crystal form has good physical and chemical properties, thereby facilitating clinical treatments.
    Type: Application
    Filed: December 31, 2020
    Publication date: February 23, 2023
    Inventors: Qi WU, Zhenxing DU, Jie WANG, Lin WANG, Weidong LU, Qiyun SHAO, Jun FENG, Feng HE
  • Publication number: 20220411380
    Abstract: An acid addition salt of a ROR? regulator. Specifically relating to the acid addition salt of the compound of formula II. More specifically relating to benzoate, oxalate, methanesulfonate, maleate, hydrobromate, hydrochloride salt, and acetate of the compound of formula II and the benzoate crystal form, benzoate amorphous form, oxalate crystal form, oxalate amorphous form, methanesulfonate amorphous form, maleate B crystal form, maleate C crystal form, maleate D crystal form, hydrobromate I crystal form, hydrochloride salt ? crystal form, hydrochloride salt ? crystal form, hydrochloride salt ? crystal form, and acetate crystal form of the compound of formula II.
    Type: Application
    Filed: October 30, 2020
    Publication date: December 29, 2022
    Inventors: Xianqiang ZHOU, Zhenxing DU, Jie WANG, Lin WANG
  • Publication number: 20220233449
    Abstract: Solid dispersion and a preparation method therefor. In a specific embodiment, the solid dispersion contains an active ingredient (R)-4-amino-1-(1-(but-2-ynyl)pyrrolidin-3-yl))-3-(4-(2,6-difluorophenoxy)phenyl)-1,6-dihydro-7H-pyrrolo[2,3-d]pyridazin-7-one or a salt thereof, and a carrier material, and the pH value is adjusted; employing a method that adds an appropriate amount of acid effectively inhibits an emulsification phenomenon in a reverse solvent process, thereby obtaining solid dispersion having a moderate particle size and uniform content.
    Type: Application
    Filed: May 29, 2020
    Publication date: July 28, 2022
    Inventors: Xianqiang Zhou, Zhenxing Du, Jie Wang
  • Patent number: 11299462
    Abstract: Provided are a crystal form of an oxopicolinamide derivative and a preparation method therefor. In particular, provided are crystal forms A, B, C, D, E, and F of a compound as shown in formula (I) and a preparation method therefor. Crystal forms A, B, C, D, E, and F of the compound of formula (I) obtained in the present disclosure have good crystal stability and chemical stability, and can be better used in clinical treatment.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: April 12, 2022
    Assignee: Jiangsu Hengrui Medicine Co., Ltd.
    Inventors: Junran Yang, Lin Wang, Qiyun Shao, Zhenxing Du, Likun Wang
  • Publication number: 20220081446
    Abstract: The present invention provides a crystal form of a 1,2,3-triazolo[1,5-a]pyrazines derivative and a preparation method for the crystal form. Specifically, the present invention provides a crystal form of a compound (S)-N5-(3,4-difluorophenyl)-6-methyl-N3-((R)-1,1,1-trifluoropropan-2-yl)-6,7-dihydro-[1,2,3]triazolo[1,5-c]pyrazine-3,5(4H)-dimethylformamide and a preparation method for the crystal form. The prepared crystal form has good stability and clinical application value.
    Type: Application
    Filed: January 22, 2020
    Publication date: March 17, 2022
    Applicants: Jiangsu Hengrui Medicine Co., Ltd., Shanghai Hengrui Pharmaceutical Co., Ltd.
    Inventors: Long HAN, Qiyun SHAO, Jun FENG, Feng HE, Yahui MA, Miaomiao ZHAO, Zhenxing DU, Jie WANG
  • Patent number: 11225462
    Abstract: The present invention relates to crystal forms of an oxypyridine amide derivative and a preparation method therefor. In particular, the present invention relates to crystal forms A, B, C, D, E and F of a compound represented by formula (I) and a preparation method therefor. The crystal forms of the compound represented by formula (I) as described in the present invention have good crystal form stability and may be better for clinical use.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: January 18, 2022
    Assignees: JIANGSU HENGRUI MEDICINE CO., LTD., SHANGHAI HENGRUI PHARMACEUTICAL CO., LTD.
    Inventors: Yahui Ma, Haoyu Zhang, Long Han, Qiyun Shao, Zhenxing Du, Jie Wang, Jun Feng, Feng He
  • Publication number: 20210355109
    Abstract: Provided are a crystal form of a maleate of a tyrosine kinase inhibitor and a preparation method therefor. Specifically, provided are I crystal form, a II crystal form, a III crystal form, a IV crystal form and a V crystal form of the compound as shown in formula (I) and a preparation method therefor. The new crystal form has a good stability, thereby making same better to use in clinical treatments.
    Type: Application
    Filed: October 21, 2019
    Publication date: November 18, 2021
    Applicant: JIANGSU HENGRUI MEDICINE CO., LTD.
    Inventors: Zhenjun QIU, Quanliang ZHANG, Yanli WEI, Yongxing CAO, Junran YANG, Yahui MA, Zhenxing DU, Jie WANG
  • Patent number: 11155537
    Abstract: This application describes a crystal of a benzofuran derivative free base and a preparation method. Specifically, this application describes crystal A, crystal B, crystal C, and crystal D of N-((4,6-dimethyl-2-carbonyl-1,2-dihydropyridin-3-yl)methyl)-5-ethyl-6-(ethyl(tetrahydro-2H-pyran)4-yl)amino)-2-(piperidin-1-ylmethyl)benzofuran-4-carboxamide and a preparation method for the crystals. The crystals of the compound of formula (I) have great crystal stability and provides improved uses in clinical treatment.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: October 26, 2021
    Assignee: Jiangsu Hengrui Medicine Co., Ltd.
    Inventors: Likun Wang, Zhenxing Du, Qiyun Shao, Chao Xu
  • Publication number: 20210188856
    Abstract: The present invention relates to a crystal form of a hydrochloride of a pyrazoloheteroaryl derivative and a preparation method. In particular, the present invention relates to crystal forms I and II of a dihydrochloride of a compound represented by formula (I), crystal forms A, B and C of a monohydrochloride of the compound represented by formula (I), and a preparation method thereof. The crystal forms of the compound represented by formula (I) of the present invention have good crystal stability and can be better used for clinical treatment.
    Type: Application
    Filed: May 24, 2019
    Publication date: June 24, 2021
    Inventors: Xiaoli CAO, Zhenxing DU, Likun WANG
  • Patent number: 11014888
    Abstract: A crystalline form of alkynyl pyridine prolyl hydroxylase inhibitor and a method for preparing same are described. Specifically, a new crystalline form of alkynyl pyridine prolyl hydroxylase inhibitor as represented by formula (I) is described. The new crystalline form of the present invention has good stability and may be better used for clinical treatment.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: May 25, 2021
    Assignee: Jiangsu Hengrui Medicine Co., Ltd.
    Inventors: Lijuan Zhai, Zhenxing Du, Likun Wang
  • Publication number: 20210130333
    Abstract: This application describes a crystal of a benzofuran derivative free base and a preparation method. Specifically, this application describes crystal A, crystal B, crystal C, and crystal D of N-((4,6-dimethyl-2-carbonyl-1,2-dihydropyridin-3-yl)methyl)-5-ethyl-6-(ethyl(tetrahydro-2H-pyran)4-yl)amino)-2-(piperidin-1-ylmethyl)benzofuran-4-carboxamide and a preparation method for the crystals. The crystals of the compound of formula (I) have great crystal stability and provides improved uses in clinical treatment.
    Type: Application
    Filed: May 17, 2018
    Publication date: May 6, 2021
    Inventors: Likun WANG, Zhenxing DU, Qiyun SHAO, Chao XU
  • Publication number: 20210122714
    Abstract: The present invention relates to crystal forms of an oxypyridine amide derivative and a preparation method therefor. In particular, the present invention relates to crystal forms A, B, C, D, E and F of a compound represented by formula (I) and a preparation method therefor. The crystal forms of the compound represented by formula (I) as described in the present invention have good crystal form stability and may be better for clinical use.
    Type: Application
    Filed: July 1, 2019
    Publication date: April 29, 2021
    Applicants: JIANGSU HENGRUI MEDICINE CO., LTD., SHANGHAI HENGRUI PHARMACEUTICAL CO., LTD
    Inventors: Yahui MA, Haoyu ZHANG, Long HAN, Qiyun SHAO, Zhenxing DU, Jie WANG, Jun FENG, Feng HE
  • Publication number: 20200385353
    Abstract: Provided are a crystal form of an oxopicolinamide derivative and a preparation method therefor. In particular, provided are crystal forms A, B, C, D, E, and F of a compound as shown in formula (I) and a preparation method therefor. Crystal forms A, B, C, D, E, and F of the compound of formula (I) obtained in the present disclosure have good crystal stability and chemical stability, and can be better used in clinical treatment.
    Type: Application
    Filed: February 26, 2019
    Publication date: December 10, 2020
    Inventors: Junran YANG, Lin WANG, Qiyun SHAO, Zhenxing DU, Likun WANG
  • Publication number: 20200299240
    Abstract: A crystalline form of alkynyl pyridine prolyl hydroxylase inhibitor and a method for preparing same are described. Specifically, a new crystalline form of alkynyl pyridine prolyl hydroxylase inhibitor as represented by formula (I) is described. The new crystalline form of the present invention has good stability and may be better used for clinical treatment.
    Type: Application
    Filed: October 24, 2018
    Publication date: September 24, 2020
    Inventors: Lijuan ZHAI, Zhenxing DU, Likun WANG
  • Patent number: 9840498
    Abstract: Provided are substituted quinazolin-4-one compounds of the formula (I) and/or pharmaceutically acceptable salts and/or solvates thereof, wherein R1, R2, R3, R5, R6 and L are as defined in the description. Such compounds are suitable for the treatment of a disorder or disease which is mediated by the activity of the class I PI3K kinases.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: December 12, 2017
    Assignee: Novartis AG
    Inventors: Zhenxing Du, Samuel Hintermann, Konstanze Hurth, Sébastien Jacquier, Hansjoerg Lehmann, Henrik Moebitz, Nicolas Soldermann, Aleksandar Stojanovic
  • Publication number: 20160168131
    Abstract: Provided are substituted quinazolin-4-one compounds of the formula (I) and/or pharmaceutically acceptable salts and/or solvates thereof, wherein R1, R2, R3, R5, R6 and L are as defined in the description. Such compounds are suitable for the treatment of a disorder or disease which is mediated by the activity of the class I PI3K kinases.
    Type: Application
    Filed: July 24, 2014
    Publication date: June 16, 2016
    Applicant: NOVARTIS AG
    Inventors: Zhenxing DU, Samuel HINTERMANN, Konstanze HURTH, Sébastien JACQUIER, Hansjoerg LEHMANN, Henrik MOEBITZ, Nicolas SOLDERMANN, Aleksandar STOJANOVIC