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).

  • Patent number: 8637545
    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: October 7, 2007
    Date of Patent: January 28, 2014
    Assignee: Tianjin Hemay Bio-Tech Co., Ltd.
    Inventor: Hesheng Zhang
  • Patent number: 8604065
    Abstract: Compounds of formula (I) or pharmaceutically acceptable salts thereof, and use for treating cancer thereof are disclosed, wherein, the definitions of X, Y, R1, R2 and n are described in description.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: December 10, 2013
    Inventors: Hesheng Zhang, Xin Chen, Yingwei Chen, Junjie Cong, Xingwen Li
  • Publication number: 20130296283
    Abstract: Preparation methods of mesylate, para-toluenesulfonate, succinate, tartrate, sulphate, nitrate, phosphate, salicylate, fumarate, maleate, gallate, acetylsalicylate, benzenesulphonate, citrate, aspartate, glutaminate, lactate, gluconate, ascorbate, malonate, malate, sorbate, acetate or formate of 1-benzyl-4-[(5,6-dimethoxy-1-indanon)-2-yl]methylpiperidine (i.e., Donepezil). Novel polymorphs formed from these salts and their preparation methods. Co-crystals formed from Donepezil hydrochloride and maleic acid, fumaric acid, citric acid, salicylic acid, tartaric acid or succinic acid.
    Type: Application
    Filed: July 5, 2013
    Publication date: November 7, 2013
    Inventor: Hesheng Zhang
  • Publication number: 20130281494
    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: Application
    Filed: October 25, 2011
    Publication date: October 24, 2013
    Applicants: Tianjin Michele Sci-Tech Development Co., Ltd., Tianjin Hemay Bio-Tech Co., Ltd.
    Inventors: Hesheng Zhang, Xin Chen
  • Patent number: 8524742
    Abstract: A method of treating or curing a disease caused by or associated with elevated levels of TNF in a patient including administering to the patient 5H-thioeno(3,4-c)pyrrole-4,6-dione derivatives.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: September 3, 2013
    Assignee: Tianjin Hemay Bio-Tech Co., Ltd.
    Inventor: Hesheng Zhang
  • Publication number: 20130225579
    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: June 8, 2011
    Publication date: August 29, 2013
    Applicant: Tianjin Hemay Bio-Tech Co., Ltd.
    Inventors: Hesheng Zhang, Yingwei Chen, Qingchao He
  • Patent number: 8501779
    Abstract: Preparation methods of mesylate, para-toluenesulfonate, succinate, tartrate, sulphate, nitrate, phosphate, salicylate, fumarate, maleate, gallate, acetylsalicylate, benzenesulphonate, citrate, aspartate, glutaminate, lactate, gluconate, ascorbate, malonate, malate, sorbate, acetate or formate of 1-benzyl-4-[(5,6-dimethoxy-1-indanon)-2-yl]methylpiperidine (i.e., Donepezil). Novel polymorphs formed from these salts and their preparation methods. Co-crystals formed from Donepezil hydrochloride and maleic acid, fumaric acid, citric acid, salicylic acid, tartaric acid or succinic acid.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: August 6, 2013
    Assignee: Tianjin Hemay Bio-Tech Co., Ltd.
    Inventor: Hesheng Zhang
  • Publication number: 20130197040
    Abstract: Provided are polymorphs I to VIII of a dalfampridine or of its solvates, a preparation method therefore, and applications thereof as an active component of a medicine. Said polymorphs Ito VIII of the dalfampridine or of its solvents can be used to prepare formulations for improving the walking speed of patients of multiple sclerosis and for alleviating other symptoms of multiple sclerosis.
    Type: Application
    Filed: October 8, 2011
    Publication date: August 1, 2013
    Applicants: TIANJIN MICHELE SCI-TECH DEVELOPMENT CO., LTD., TIANJIN HEMAY BIO-TECH CO., LTD.
    Inventors: Hesheng Zhang, Xin Chen
  • Patent number: 8466191
    Abstract: Compounds represented by Formula (I) or Formula (II) against cell releasing TNF?, their pharmaceutically acceptable salts or hydrates and preparation methods and uses thereof, in which A and B represent CH2, CO, SO, or SO2; D represents S, NH, or NC1-6 alkyl; R1 represents H, or one or two same or different radical(s) selected from the group consisting of F, Cl, Br, C1-4 alkyl, OH, OC1-4 alkyl, NO2, NHC(O)C1-4 alkyl, NH2, NH(C1-4 alkyl), or N(C1-4 alkyl)2.
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: June 18, 2013
    Inventor: Hesheng Zhang
  • Publication number: 20130131001
    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: Application
    Filed: November 3, 2010
    Publication date: May 23, 2013
    Applicants: Tianjin Michele Sci-Tech Development Co.,, Tianjin Hemay Bio-Tech Co., Ltd.
    Inventor: Hesheng Zhang
  • Patent number: 8426373
    Abstract: A pharmaceutical composition containing at least one ?-lactam antibiotic, at least one ion-chelating agent, at least one buffer component, and at least one aminoglycoside antibiotic.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: April 23, 2013
    Inventor: Hesheng Zhang
  • Publication number: 20120309797
    Abstract: Compounds of formula (I) or pharmaceutically acceptable salts thereof, and use for treating cancer thereof are disclosed, wherein, the definitions of X, Y, R1, R2 and n are described in description.
    Type: Application
    Filed: November 18, 2010
    Publication date: December 6, 2012
    Inventors: Hesheng Zhang, Xin Chen, Yingwei Chen, Junjie Cong, Xingwen Li
  • Publication number: 20120308646
    Abstract: Aminoside tetracyclic anthraquinones represented by formula (I) and (II). Peptides are introduced to connect tetracyclic anthraquinones and fatty acid to enable selective absorption and release of the anticancer agents. In addition, aminosaccharide and tetracyclic moieties are introduced into the branched chain to improve water-solubility. The compounds of formula (I) and (II) are pharmaceutically active components useful for treating diseases that are cured by aminoside tetracyclic anthraquinones, including cancer.
    Type: Application
    Filed: August 13, 2012
    Publication date: December 6, 2012
    Inventor: Hesheng ZHANG
  • Publication number: 20120225872
    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: Application
    Filed: May 11, 2012
    Publication date: September 6, 2012
    Inventor: Hesheng ZHANG
  • Publication number: 20120220631
    Abstract: A method of treating or curing a disease caused by or associated with elevated levels of TNF in a patient including administering to the patient 5H-thioeno(3,4-c)pyrrole-4,6-dione derivatives.
    Type: Application
    Filed: May 9, 2012
    Publication date: August 30, 2012
    Applicant: TIANJIN HEMAY BIO-TECH CO., LTD.
    Inventor: Hesheng ZHANG
  • Patent number: 8198301
    Abstract: A compound of formula (I), a pharmaceutically acceptable salt, or hydrate thereof, and a method of preparing the same. A method of treating or preventing a physiological disorder caused by abnormal protein tyrosine kinase activity in a mammal comprising administering to said mammal a pharmaceutical composition comprising a compound of formula (I).
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: June 12, 2012
    Inventor: Hesheng Zhang
  • Patent number: 8183260
    Abstract: Taught are derivatives of 5H-thioeno(3,4-c)pyrrole-4,6-dione, their organic, and inorganic salts, methods of synthesis of these derivatives, and their application as active pharmaceutical-ingredients useful as inhibitors of TNF?, the derivative being represented by the general formula (I): in which R1 represents H, C1-6alkyl, OR4, OC(O)R5, NO2, NHC(O)R6, or NR7R8; R2 represents H, a halogen, or C1-6alkyl; R3 represents H, methyl, isopropyl, allyl, benzyl, CH2CO2(C1-6alkyl), or CH2(CH2)nR9; R4, R5, R6, R7, and R8 each independently and at each occurrence represents H, or C1-6alkyl; R9 represents H, C1-6alkyl, OH, OC1-6alkyl, NH2, NHC1-6alkyl, N(C1-6alkyl)2, or CO2(C1-6alkyl); and n represents 1, 2, 3, or 4.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: May 22, 2012
    Assignee: Tianjin Hemay Bio-Tech Co., Ltd.
    Inventor: Hesheng Zhang
  • Publication number: 20120107269
    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 14, 2010
    Publication date: May 3, 2012
    Applicant: Tianjin Hemay Biotech Co., Ltd
    Inventors: Hesheng Zhang, Guanghuai Zeng, Yifei Gao
  • Publication number: 20120029036
    Abstract: Disclosed are a composition comprising a pyridyl cyanoguanidine and a cyclodextrin, a cyclodextrin derivative and/or a surfactant with solubilization, process for preparing the same and use thereof.
    Type: Application
    Filed: August 4, 2011
    Publication date: February 2, 2012
    Applicants: Tianjin Michele Sci-Tech Development Co., Ltd., Tianjin Hemay Bio-Tech Co., Ltd.
    Inventors: Hesheng Zhang, Qinghua Zhang, Yingwei Chen, Aihong Huo
  • Patent number: 8053577
    Abstract: A compound of Formula I, a pharmaceutically-acceptable salt or a hydrate thereof, wherein R1 is H, or C1-4 alkyl; R2 is H, halogen, or C1-4 alkyl; R3 is H, halogen, or C1-4 alkyl, and R4 is C1-6 alkyl, aryl; or ?CR3R4 is cyclopentylidene, cyclohexylidene, 1-methylpiperidin-4-ylidene, or inden-1-ylidene; R5 is independently at each occurrence F, Cl, Br, CF3, R9, OR9, NR9R10, NO2, CN, COOR9, O2CR9, CONR9R10, NR9C(O)R10, heterocyclic group, aryl, or a group of Formula II; R6 is H, halogen, or C1-4 alkyl; R7 is H, halogen, or C1-4 alkyl; R8 is H, C1-4alkyl group; R9 is H, or C1-6 alkyl; R10 is H, or C1-6 alkyl; R11 is H, or C1-4 alkyl; R12 is H, or C1-4 alkyl; m is 0, 1, or 2; when R5 is F, Cl, Br, CF3, R9, OR9, NR9R10, NO2, CN, COOR9, O2CR9, CONR9R10, NR9C(O)R10, heterocyclic group, or aryl, n is 1, 2, 3, or 4; when R5 is the group of Formula II, n is 0, 1, 2, 3, or 4; x is 0, 1, 2, 3, or 4.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: November 8, 2011
    Inventor: Hesheng Zhang