Patents by Inventor Guoqing ZHUO

Guoqing ZHUO 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).

  • Hydrobromide of benzodiazepine derivative, preparation method and use thereof
    Patent number: 10618904
    Abstract: The present invention provides a hydrobromide of methyl 3-[(4s)-8-bromo-1-methyl-6-(2-pyridyl)-4H-imidazol[1,2-a][1,4]benzodiazepine-4-yl] propionate and its related crystal forms, preparation method and use thereof. The hydrobromide has excellent solubility (>100 mg/ml), which is significantly superior to other currently commercially available or developed salt products, and is especially suitable for the preparation of injections, has relatively good stability in various crystal forms, and has good practical value and market prospects.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: April 14, 2020
    Assignee: CHENGDU BRILLIANT PHARMACEUTICAL CO., LTD.
    Inventors: Haoxi Huang, Guoqing Zhuo, Guoning Shang, Zhen Liang, Ting Chu, Cuicui Chen, Ming Luo, Yingfu Li, Zhonghai Su
  • HYDROBROMIDE OF BENZODIAZEPINE DERIVATIVE, PREPARATION METHOD AND USE THEREOF
    Publication number: 20190308981
    Abstract: The present invention provides a hydrobromide of methyl 3-[(4s)-8-bromo-1-methyl-6-(2-pyridyl)-4H-imidazol[1,2-a][1,4]benzodiazepine-4-yl] propionate and its related crystal forms, preparation method and use thereof. The hydrobromide has excellent solubility (>100 mg/ml), which is significantly superior to other currently commercially available or developed salt products, and is especially suitable for the preparation of injections, has relatively good stability in various crystal forms, and has good practical value and market prospects.
    Type: Application
    Filed: December 13, 2016
    Publication date: October 10, 2019
    Applicant: CHENGDU BRILLIANT PHARMACEUTICAL CO., LTD.
    Inventors: Haoxi HUANG, Guoqing ZHUO, Guoning SHANG, Zhen LIANG, Ting CHU, Cuicui CHEN, Ming LUO, Yingfu LI, Zhonghai SU