Patents by Inventor Naiguo XING

Naiguo XING 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).

  • RADIOLABELED COMPOUND, AND PRECURSOR COMPOUND THEREOF, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
    Publication number: 20240415989
    Abstract: A precursor compound of a radiolabeled compound as shown in Formula (I), a radiolabeled compound thereof, or a pharmaceutically acceptable salt thereof. The radiolabeled compound is high in water solubility, good in in-vitro stability at room temperature, and high in plasma protein binding rate, and shows high and long-time bone uptake in both in-vivo distribution in mice and imaging of New Zealand rabbits, and animal experiments show that the development effect is better than that of 99mTc-MDP.
    Type: Application
    Filed: January 6, 2022
    Publication date: December 19, 2024
    Inventors: Yue Chen, Yingwei Wang, Qixin Wang, Lin Qiu, Yue Feng, Li Wang, Zan Chen, Jian Yang, Dengsai Peng, Guangfu Liu, Tingting Xu, Naiguo Xing, Hanxiang Liu
  • Crystal form of Abiraterone propionate and preparation method therefor
    Patent number: 10087212
    Abstract: The present invention relates to the field of pharmaceutical chemistry, and particularly to a crystal form of Abiraterone propionate and a preparation method therefor. Characteristic diffraction peaks occur at positions, where the 2? value is 5.7°, 11.9°, 12.4°, 14.9°, 15.8°, 16.7°, 18.5°, 19.1°, 21.7°, 22.4°, and 39.9°±0.2°, in an X-ray powder diffraction spectrum of the crystal form of Abiraterone propionate.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: October 2, 2018
    Assignee: CHONGQING PHARMACEUTICAL RESEARCH INSTITUTE CO., LTD
    Inventors: Naiguo Xing, Yan Shangguan, Deping Zheng, Fanglu Chen
  • CRYSTAL FORM OF ABIRATERONE PROPIONATE AND PREPARATION METHOD THEREFOR
    Publication number: 20180030085
    Abstract: The present invention relates to the field of pharmaceutical chemistry, and particularly to a crystal form of Abiraterone propionate and a preparation method therefor. Characteristic diffraction peaks occur at positions, where the 2? value is 5.7°, 11.9°, 12.4°, 14.9°, 15.8°, 16.7°, 18.5°, 19.1°, 21.7°, 22.4°, and 39.9°±0.2°, in an X-ray powder diffraction spectrum of the crystal form of Abiraterone propionate.
    Type: Application
    Filed: February 3, 2016
    Publication date: February 1, 2018
    Applicant: CHONGQING PHARMACEUTICAL RESEARCH INSTITUTE CO., LTD
    Inventors: Naiguo XING, Yan SHANGGUAN, Deping ZHENG, Fanglu CHEN