Patents by Inventor Yanyan Dong

Yanyan Dong 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: 10507209
    Abstract: The invention relates to quinazoline derivatives substituted by aniline which are represented by the below formula (I), pharmaceutical acceptable salts and stereoisomer thereof, wherein these groups of R1, R2, R3, R4, R5, R6, L and n have the meanings given in the specification. The invention also relates to preparation methods, pharmaceutical compositions, pharmaceutical preparation and the use for preparation of medicine of treating excessive hyperplasia and chronic obstructive pulmonary disease and uses for treating excessive hyperplasia and chronic obstructive pulmonary disease thereof.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: December 17, 2019
    Assignee: XUANZHU PHARMA CO, LTD.
    Inventors: Yanyan Dong, Chengkon Shih
  • Publication number: 20170333433
    Abstract: The invention relates to quinazoline derivatives substituted by aniline which are represented by the below formula (I), pharmaceutical acceptable salts and stereoisomer thereof, wherein these groups of R1, R2, R3, R4, R5, R6, L and n have the meanings given in the specification. The invention also relates to preparation methods, pharmaceutical compositions, pharmaceutical preparation and the use for preparation of medicine of treating excessive hyperplasia and chronic obstructive pulmonary disease and uses for treating excessive hyperplasia and chronic obstructive pulmonary disease thereof.
    Type: Application
    Filed: August 7, 2017
    Publication date: November 23, 2017
    Inventors: Yanyan DONG, Shih CHENGKON
  • Publication number: 20170304305
    Abstract: The invention relates to quinazoline derivatives substituted by aniline which are represented by the below formula (I), pharmaceutical acceptable salts and stereoisomer thereof, wherein these groups of R1, R2, R3, R4, R5, R6, L and n have the meanings given in the specification. The invention also relates to preparation methods, pharmaceutical compositions, pharmaceutical preparation and the use for preparation of medicine of treating excessive hyperplasia and chronic obstructive pulmonary disease and uses for treating excessive hyperplasia and chronic obstructive pulmonary disease thereof.
    Type: Application
    Filed: July 10, 2017
    Publication date: October 26, 2017
    Inventors: Yanyan DONG, Shih CHENGKON
  • Patent number: 9730934
    Abstract: The invention relates to quinazoline derivatives substituted by aniline which are represented by the below formula (I), pharmaceutical acceptable salts and stereoisomer thereof, wherein these groups of R1, R2, R3, R4, R5, R6, L and n have the meanings given in the specification. The invention also relates to preparation methods, pharmaceutical compositions, pharmaceutical preparation and the use for preparation of medicine of treating excessive hyperplasia and chronic obstructive pulmonary disease and uses for treating excessive hyperplasia and chronic obstructive pulmonary disease thereof.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: August 15, 2017
    Assignee: XUANZHU PHARMA CO., LTD.
    Inventors: Zhenhua Huang, Yanyan Dong
  • Patent number: 9365499
    Abstract: The present invention relates to 9-aminomethyl substituted tetracycline compounds represented by formula (I), or pharmaceutically acceptable salt, prodrug, solvate or isomer thereof, as well as a method for preparing these compounds and a pharmaceutical composition comprising the same. The present invention relates also to a use of these compounds in the preparation of a medicament for the treatment and/or prophylaxis of tetracycline drug-sensitive disease. wherein, R2a, R2b, R3, R4a, R4b, R5, R6a, R6b, R7, R8, R9a, R9b, R10, R11, R12, R13a and R13b are each independently as defined in the description.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: June 14, 2016
    Assignee: KBP Biosciences Co., Ltd.
    Inventors: Hui Zhang, Yanyan Dong
  • Patent number: 8822445
    Abstract: The present invention relates to the crystalline form of carbapenems derivative or hydrate thereof and the preparation methods thereof. Specifically, the present invention relates to the crystalline form of carbapenem derivative (4R,5S,6S)-6-((R)-1-hydroxyethyl)-4-methyl-7-oxo-3-(((3S,5S)-5-((4-sulfamoylbenzyl)carbamoyl)pyrrolidin-3-yl)thio)-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid as represented by formula (I) or hydrate thereof, characterized in that the X-ray powder diffraction pattern thereof using Cu-Ka radiation represented as 2? has characteristic peaks at 18.9±0.2, 19.4±0.2, 21.0±0.2, 21.7±0.2, and 23.4±0.2, the preparation methods thereof, and the use thereof in the preparation of medicament for treating and/or preventing infectious diseases, as well as a pharmaceutical composition comprising such compound and one or more pharmaceutical carriers and/or diluents.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: September 2, 2014
    Assignee: Xuanzhu Pharma Co., Ltd.
    Inventors: Zhenhua Huang, Yanyan Dong
  • Publication number: 20140179638
    Abstract: The present invention relates to 9-aminomethyl substituted tetracycline compounds represented by formula (I), or pharmaceutically acceptable salt, prodrug, solvate or isomer thereof, as well as a method for preparing these compounds and a pharmaceutical composition comprising the same. The present invention relates also to a use of these compounds in the preparation of a medicament for the treatment and/or prophylaxis of tetracycline drug-sensitive disease. wherein, R2a, R2b, R3, R4a, R4b, R5, R6a, R6b, R7, R8, R9a, R9b, R10, R11, R12, R13a and R13b are each independently as defined in the description.
    Type: Application
    Filed: July 26, 2012
    Publication date: June 26, 2014
    Applicant: KBP BIOSCIENCES CO., LTD.
    Inventors: Hui Zhang, Yanyan Dong
  • Publication number: 20130184297
    Abstract: The invention relates to quinazoline derivatives substituted by aniline which are represented by the below formula (I), pharmaceutical acceptable salts and stereoisomer thereof, wherein these groups of R1, R2, R3, R4, R5, R6, L and n have the meanings given in the specification. The invention also relates to preparation methods, pharmaceutical compositions, pharmaceutical preparation and the use for preparation of medicine of treating excessive hyperplasia and chronic obstructive pulmonary disease and uses for treating excessive hyperplasia and chronic obstructive pulmonary disease thereof.
    Type: Application
    Filed: August 30, 2011
    Publication date: July 18, 2013
    Applicant: XUANZHU PHARMA CO., LTD.
    Inventors: Zhenhua Huang, Yanyan Dong
  • Publication number: 20130090325
    Abstract: The present invention relates to the crystalline form of carbapenems derivative or hydrate thereof and the preparation methods thereof. Specifically, the present invention relates to the crystalline form of carbapenem derivative (4R,5S,6S)-6-((R)-1-hydroxyethyl)-4-methyl-7-oxo-3-(((3S,5S)-5-(4-sulfamoylbenzyl)carbamoyl)pyrrolidin-3-yl)thio)-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid as represented by formula (I) or hydrate thereof, characterized in that the X-ray powder diffraction pattern thereof using Cu-Ka radiation represented as 2? has characteristic peaks at 18.9±0.2, 19.4±0.2, 21.0±0.2, 21.7±0.2, and 23.4±0.2, the preparation methods thereof, and the use thereof in the preparation of medicament for treating and/or preventing infectious diseases, as well as a pharmaceutical composition comprising such compound and one or more pharmaceutical carriers and/or diluents.
    Type: Application
    Filed: June 1, 2011
    Publication date: April 11, 2013
    Applicant: XUANZHU PHARMA CO., LTD
    Inventors: Zhenhua Huang, Yanyan Dong
  • Publication number: 20130079322
    Abstract: The present invention relates to a crystalline form of carbapenems derivative (4R,5S,6S)-6-((R)-1-hydroxyethyl)-4-methyl-7-oxo-3-(((3S,5S)-5-((4-sulfamoylbenzyl)carbamoyl)pyrrolidin-3-yl)thio)-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid_as represented by formula (I) or hydrate thereof and the preparation methods thereof, wherein said method comprise: dissolving the compound as represented by formula (I) by an aqueous solution of N,N?-dimethylformamide (DMF), dimethyl sulfoxide (DMSO), and then adding a poor solvent dropwise to this solution, filtering and drying to obtain a crystal. Another method comprises: formulating the compound as represented by formula (I) as an aqueous suspension; after adjusting pH until complete dissolution, adding a mixed solvent of organic solvent/water with a certain volume ratio; adjusting pH to 5.4-7.0, cooling to low temperature, filtering and drying to obtain a crystal.
    Type: Application
    Filed: May 20, 2011
    Publication date: March 28, 2013
    Applicant: Xuanzhu Pharama Co., Ltd.
    Inventors: Zhenhua Huang, Yanyan Dong
  • Patent number: 8318716
    Abstract: The present invention includes novel carbapenem derivatives having structural formula (I) or (II): wherein R1, R2, R3, R4 are described in the specification. The present invention also provides pharmaceutical compositions comprising the novel carbapenem derivatives and the use of the novel carbapenem derivatives for treating infectious diseases.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: November 27, 2012
    Assignee: KBP Biosciences Co., Ltd.
    Inventors: Zhenhua Huang, Yanyan Dong
  • Patent number: 8293895
    Abstract: The present invention relates to novel carbapenem derivatives and belongs to pharmaceutical field. Specifically, the present invention relates to the compounds as represented by formula (1), pharmaceutically acceptable salts, hydrolysable esters, isomers and intermediates thereof, wherein R1, R2, R3, R4 are described as in the description. The present invention also relates to the processes for the preparation of these compounds, to the pharmaceutical compositions comprising these compounds, and to their use for the manufacture of a medicament for the treatment and/or prevention of infectious diseases.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: October 23, 2012
    Assignee: KBP Biosciences Co., Ltd.
    Inventors: Zhenhua Huang, Yanyan Dong
  • Publication number: 20110160177
    Abstract: The present invention includes novel carbapenem derivatives having structural formula (I) or (II): wherein R1, R2, R3, R4 are described in the specification. The present invention also provides pharmaceutical compositions comprising the novel carbapenem derivatives and the use of the novel carbapenem derivatives for treating infectious diseases.
    Type: Application
    Filed: December 31, 2009
    Publication date: June 30, 2011
    Inventors: Zhenhua HUANG, Yanyan DONG
  • Publication number: 20100197653
    Abstract: The present invention relates to novel carbapenem derivatives and belongs to pharmaceutical field. Specifically, the present invention relates to the compounds as represented by formulae (1) and (2), pharmaceutically acceptable salts, hydrolysable esters, isomers and intermediates thereof, wherein R1, R2, R3, R4 are described as in the description. The present invention also relates to the processes for the preparation of these compounds, to the pharmaceutical compositions comprising these compounds, and to their use for the manufacture of a medicament for the treatment and/or prevention of infectious diseases.
    Type: Application
    Filed: June 26, 2008
    Publication date: August 5, 2010
    Applicant: KBP Biosciences Co., Ltd.
    Inventors: Zhenhua Huang, Yanyan Dong