Patents by Inventor Hesheng Zhang

Hesheng Zhang 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: 20170247403
    Abstract: Disclosed are a compound represented by formula (I) and a pharmaceutically acceptable salt thereof, wherein R1, R2, R3, R4, R5, W, n are defined as in the present application.
    Type: Application
    Filed: May 5, 2017
    Publication date: August 31, 2017
    Inventors: Hesheng Zhang, Aihong Huo, Zhenzhong Li
  • Publication number: 20170226093
    Abstract: Disclosed is a compound of formula I, a stereoisomer thereof, a cis-trans-isomer thereof, a tautomer thereof, or a mixture thereof, or a pharmaceutically acceptable salt thereof, a solvate thereof or a prodrug thereof, wherein R1, R2, R3 and R4 are each as defined in the present application.
    Type: Application
    Filed: April 13, 2017
    Publication date: August 10, 2017
    Inventors: Hesheng Zhang, Yingwei Chen, Qingchao He
  • Publication number: 20170197982
    Abstract: Disclosed is a compound of formula (I), wherein R1, R2, R3, R4, R5, R6, R7 and R8 are as defined in the present application.
    Type: Application
    Filed: March 24, 2017
    Publication date: July 13, 2017
    Inventors: Hesheng Zhang, Guanghuai Zeng, Yifei Gao
  • Patent number: 9676724
    Abstract: Disclosed is a compound of formula I, a stereoisomer thereof, a cis-trans-isomer thereof, a tautomer thereof, or a mixture thereof, or a pharmaceutically acceptable salt thereof, a solvate thereof or a prodrug thereof, wherein R1, R2, R3 and R4 are each as defined in the present application.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: June 13, 2017
    Assignee: Tianjin Hemay Oncology Pharmaceutical Co., Ltd.
    Inventors: Hesheng Zhang, Yingwei Chen, Qingchao He
  • Patent number: 9669015
    Abstract: This invention is directed to derivatives of piperidine-2,6-dione, or their organic or inorganic salts thereof, a methods of synthesis of these derivatives, and their application as active pharmaceutical ingredient as inhibitors of TNF? releasing in cells, the derivative of piperidine-2,6-dione being of the general formula (I): wherein n represents 1, 2, 3, 4, 5 or 6; R1 represents from one to four of the same or different substituents selected from F, Cl, Br, C1-4 alkyl, OH, OC1-4 alkyl, NO2, NHC(O)C1-4 alkyl, NH2, NH(C1-4 alkyl), N(C1-4 alkyl)2; R2 represents OR3, NR3R4, N(R3)COR4, O2CR5; R3 and R4 represent independently and at each occurrence H or C1-4 alkyl; R5 represents CHR6NR7R8, CHR6NR9C(O)CHR10NR7R8, a heterocycle W or CHR6NR9C(O)W; R6, R9, R10 represent independently and at each occurrence H, or C1-4 alkyl; R7 and R8 represent independently and at each occurrence H, C1-4 alkyl, or R7 and R8 taken together represent 1,3-propylene, 1,4-butylene, 1,5-pentylene, or 1,6-hexylene; W represents four-m
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: June 6, 2017
    Assignee: Tianjin Hemay Bio-Tech Co., Ltd.
    Inventor: Hesheng Zhang
  • Patent number: 9670242
    Abstract: Disclosed are a compound represented by formula (I) and a pharmaceutically acceptable salt thereof, wherein R1, R2, R3, R4, R5, W, n are defined as in the present application. Also disclosed is a method for treating cancer, comprising administering to a subject in need thereof a therapeutically effective amount of the compound represented by formula (I) or a pharmaceutically acceptable salt thereof. The compound and a salt thereof according to the present application possess good anticancer and/or antitumor activity, and good water solubility and stability, as well as good tolerance in animal bodies. Also disclosed is a process for preparing a compound represented by formula (I) of the present application, comprising reacting a compound represented by formula (II) with a compound represented by formula (III) in the presence of a condensation agent to obtain a compound represented by formula (I).
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: June 6, 2017
    Assignee: Tianjin Hemay Oncology Pharmaceutical Co., Ltd.
    Inventors: Hesheng Zhang, Aihong Huo, Zhenzhong Li
  • Patent number: 9630975
    Abstract: Disclosed is a compound of formula (I), wherein R1, R2, R3, R4, R5, R6, R7 and R8 are as defined in the present application.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: April 25, 2017
    Assignees: Tianjin Hemay Bio-Tech Co., Ltd., Tianjin Michele Sci-Tech Development Co., Ltd.
    Inventors: Hesheng Zhang, Guanghuai Zeng, Yifei Gao
  • Publication number: 20160311796
    Abstract: Disclosed are N-[4-(3-chloro-4-fluorophenylamino)-7-(2-methoxyethoxy) quinazolin-6-yl]-2 -[1-(2-methoxyethyl)piperidin-4-ylidene]acetamide and a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: December 12, 2014
    Publication date: October 27, 2016
    Inventors: Hesheng ZHANG, Guanghuai ZENG, Yingwei CHEN
  • Publication number: 20160185728
    Abstract: Disclosed is a compound of formula I, a stereoisomer thereof, a cis-trans-isomer thereof, a tautomer thereof, or a mixture thereof, or a pharmaceutically acceptable salt thereof, a solvate thereof or a prodrug thereof, wherein R1, R2, R3 and R4 are each as defined in the present application.
    Type: Application
    Filed: October 12, 2015
    Publication date: June 30, 2016
    Inventors: Hesheng Zhang, Yingwei Chen, Qingchao He
  • Patent number: 9187458
    Abstract: Disclosed is a compound of formula I, a stereoisomer thereof, a cis-trans-isomer thereof, a tautomer thereof, or a mixture thereof, or a pharmaceutically acceptable salt thereof, a solvate thereof or a prodrug thereof, wherein R1, R2, R3 and R4 are each as defined in the present application.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: November 17, 2015
    Assignee: Tianjin Hemay Bio-Tech Co., LTD.
    Inventors: Hesheng Zhang, Yingwei Chen, Qingchao He
  • Publication number: 20150272940
    Abstract: This invention is directed to derivatives of piperidine-2,6-dione, or their organic or inorganic salts thereof, a methods of synthesis of these derivatives, and their application as active pharmaceutical ingredient as inhibitors of TNF? releasing in cells, the derivative of piperidine-2,6-dione being of the general formula (I): wherein n represents 1, 2, 3, 4, 5 or 6; R1 represents from one to four of the same or different substituents selected from F, Cl, Br, C1-4 alkyl, OH, OC1-4 alkyl, NO2, NHC(O)C1-4 alkyl, NH2, NH(C1-4 alkyl), N(C1-4 alkyl)2; R2 represents OR3, NR3R4, N(R3)COR4, O2CR5; R3 and R4 represent independently and at each occurrence H or C1-4 alkyl; R5 represents CHR6NR7R8, CHR6NR9C(O)CHR10NR7R8, a heterocycle W or CHR6NR9C(O)W; R6, R9, R10 represent independently and at each occurrence H, or C1-4 alkyl; R7 and R8 represent independently and at each occurrence H, C1-4 alkyl, or R7 and R8 taken together represent 1,3-propylene, 1,4-butylene, 1,5-pentylene, or 1,6-hexylene; W represents four-m
    Type: Application
    Filed: June 16, 2015
    Publication date: October 1, 2015
    Inventor: Hesheng Zhang
  • Patent number: 9115165
    Abstract: The present invention relates to tetracyclic anthraquinone antibiotic derivatives with anticancer activity. The tetracyclic anthraquinone antibiotic derivatives as provided in the present invention have the same or higher activity than that of the known drugs such as doxorubicin, daunorubicin and the like in the cellular level while having better tolerance than that of doxorubicin and daunorubicin in the animal body.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: August 25, 2015
    Assignees: Tianjin Hemay Bio-Tech Co., Ltd., Tianjin Michele Sci-Tech Development Co., Ltd.
    Inventor: Hesheng Zhang
  • Patent number: 9085563
    Abstract: This invention is directed to derivatives of piperidine-2,6-dione, or their organic or inorganic salts thereof, a methods of synthesis of these derivatives, and their application as active pharmaceutical ingredient as inhibitors of TNF? releasing in cells, the derivative of piperidine-2,6-dione being of the general formula (I): wherein n represents 1, 2, 3, 4, 5 or 6; R1 represents from one to four of the same or different substituents selected from F, Cl, Br, C1-4 alkyl, OH, OC1-4 alkyl, NO2, NHC(O)C1-4 alkyl, NH2, NH(C1-4 alkyl), N(C1-4 alkyl)2; R2 represents OR3, NR3R4, N(R3)COR4, O2CR5; R3 and R4 represent independently and at each occurrence H or C1-4 alkyl; R5 represents CHR6NR7R8, CHR6NR9C(O)CHR10NR7R8, a heterocycle W or CHR6NR9C(O)W; R6, R9, R10 represent independently and at each occurrence H, or C1-4 alkyl; R7 and R8 represent independently and at each occurrence H, C1-4 alkyl, or R7 and R8 taken together represent 1,3-propylene, 1,4-butylene, 1,5-pentylene, or 1,6-hexylene; W represents four-m
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: July 21, 2015
    Assignee: Tianjin Hemay Bio-Tech Co., Ltd.
    Inventor: Hesheng Zhang
  • Publication number: 20150166595
    Abstract: Disclosed are a compound represented by formula (I) and a pharmaceutically acceptable salt thereof, wherein R1, R2, R3, R4, R5, W, n are defined as in the present application.
    Type: Application
    Filed: March 6, 2013
    Publication date: June 18, 2015
    Inventors: Hesheng Zhang, Aihong Huo, Zhenzhong Li
  • Patent number: 8952178
    Abstract: Disclosed is a compound of formula (I), wherein R1, R2, R3, R4, R5, R6, R7 and R8 are as defined in the present application.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: February 10, 2015
    Assignees: Tianjin Hemay Bio-Tech Co., Ltd., Tianjin Michele Sci-Tech Development Co., Ltd.
    Inventors: Hesheng Zhang, Guanghuai Zeng, Yifei Gao
  • Patent number: 8877720
    Abstract: Disclosed are compounds represented by formula (I), pharmaceutically acceptable salts thereof, solvates thereof, and solvates of the pharmaceutically acceptable salts thereof, wherein R1, R2, R3, R4, W and are as defined in the present application.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: November 4, 2014
    Assignees: Tianjin Hemay Bio-Tech Co., Ltd., Tianjin Michele Sci-Tech Development Co., Ltd.
    Inventor: Hesheng Zhang
  • Patent number: 8859594
    Abstract: Disclosed are a polymorphs I-VI of N-(6-(4-chlorophenoxy)hexyl)-N?-cyano-N?-(4-pyridyl)guanidine or of a solvate thereof, a preparation method thereof, and a use thereof as a biological active ingredient. The polymorphs are useful in treatment of cancers, and diseases or disorders caused by abnormal cell proliferation.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: October 14, 2014
    Assignees: Tianjin Hemay Bio-Tech Co., Ltd., Tianjin Michele Sci-Tech Development Co., Ltd.
    Inventors: Hesheng Zhang, Xin Chen
  • Publication number: 20140255342
    Abstract: Disclosed is a compound of formula (I), wherein R1, R2, R3, R4, R5, R6, R7 and R8 are as defined in the present application.
    Type: Application
    Filed: May 19, 2014
    Publication date: September 11, 2014
    Applicants: TIANJIN HEMAY BIO-TECH CO., LTD., TIANJIN MICHELE SCI-TECH DEVELOPMENT CO., LTD
    Inventors: Hesheng Zhang, Guanghuai Zeng, Yifei Gao
  • Patent number: 8765946
    Abstract: A method of preparing a compound of formula (I), A method for treating cancer or inhibiting growth of cancer cells including administering to a patient mammal in need thereof a pharmaceutical preparation including the compound. A method of treating or preventing a physiological disorder caused by abnormal protein tyrosine kinase activity in a mammal including administering to a mammal a pharmaceutical preparation including the compound.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: July 1, 2014
    Inventor: Hesheng Zhang
  • Publication number: 20140179737
    Abstract: This invention is directed to derivatives of piperidine-2,6-dione, or their organic or inorganic salts thereof, a methods of synthesis of these derivatives, and their application as active pharmaceutical ingredient as inhibitors of TNF? releasing in cells, the derivative of piperidine-2,6-dione being of the general formula (I): wherein n represents 1, 2, 3, 4, 5 or 6; R1 represents from one to four of the same or different substituents selected from F, Cl, Br, C1-4 alkyl, OH, OC1-4 alkyl, NO2, NHC(O)C1-4 alkyl, NH2, NH(C1-4 alkyl), N(C1-4 alkyl)2; R2 represents OR3, NR3R4, N(R3)COR4, O2CR5; R3 and R4 represent independently and at each occurrence H or C1-4 alkyl; R5 represents CHR6NR7R8, CHR6NR9C(O)CHR10NR7R8, a heterocycle W or CHR6NR9C(O)W; R6, R9, R10 represent independently and at each occurrence H, or C1-4 alkyl; R7 and R8 represent independently and at each occurrence H, C1-4 alkyl, or R7 and R8 taken together represent 1,3-propylene, 1,4-butylene, 1,5-pentylene, or 1,6-hexylene; W represents four-m
    Type: Application
    Filed: December 18, 2013
    Publication date: June 26, 2014
    Applicant: Tianjin Hemay Bio-Tech Co., Ltd.
    Inventor: Hesheng Zhang