Patents by Inventor Fenglai SUN

Fenglai SUN 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).

  • METHODS OF MAKING AND USING PDE9 INHIBITORS
    Publication number: 20230183244
    Abstract: The present invention relates to PDE9 inhibitors, their synthesis, and their use for treatment of benign prostate hyper-plasia, beta thalassemia, and sickle cell disease.
    Type: Application
    Filed: April 19, 2022
    Publication date: June 15, 2023
    Inventors: Niels SVENSTRUP, Jun ZHANG, Jikui SUN, Yuyin CHEN, Jianshe KONG, Rujian MA, Junhua ZHANG, Liang QIN, Huanming XIAO, Jinxu SUN, Xiao MENG, Fenglai SUN, Jingyang ZHU
  • Process for the synthesis of 6-[(3S,4S)-4-methyl-1-(pyrimidin-2-ylmethyl)pyrrolidin-3-yl]-3-tetrahydropyran-4-yl-7H-imidazo[1,5-a]pyrazin-8-one
    Patent number: 11370795
    Abstract: The present invention relates a process for the synthesis of 6-((3S,4S)-4-methyl-1-(pyrimidin-2 ylmethyl)pyrrolidin-3-yl)-3-tetrahydropyran-4-yl-7H-imidazo[1,5-a]pyrazin-8-one, comprising use of the chiral acid (+)-O,O-Dibenzoyl-D-tartaic acid.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: June 28, 2022
    Assignee: Imara Inc.
    Inventors: Niels Svenstrup, Jun Zhang, Jikui Sun, Yuyin Chen, Jianshe Kong, Rujian Ma, Junhua Zhang, Liang Qin, Huanming Xiao, Jinxu Sun, Xiao Meng, Fenglai Sun, Jingyang Zhu
  • METHOD FOR PRODUCING HETEROCYCLIDENE ACETAMIDE DERIVATIVE
    Publication number: 20220009898
    Abstract: The present invention provides, a novel method for producing a compound represented by formula (I) and a novel method for producing a compound represented by formula (B) or a salt thereof, which are intermediates in the production of formula (I).
    Type: Application
    Filed: September 27, 2021
    Publication date: January 13, 2022
    Applicant: MOCHIDA PHARMACEUTICAL CO., LTD.
    Inventors: Hideharu UCHIDA, Tsutomu SATOH, Baoquan SUN, Chunbo SHA, Jinguang LIN, Yonghui GE, Yanliang CHEN, Bin ZHAO, Xiaomin GU, Jian LUO, Chuan CHEN, Xiaofei CAI, Jiajie YE, Jie LI, Fenglai SUN
  • METHODS OF MAKING AND USING PDE9 INHIBITORS
    Publication number: 20200157108
    Abstract: The present invention relates to PDE9 inhibitors, their synthesis, and their use for treatment of benign prostate hyperplasia, beta thalassemia, and sickle cell disease.
    Type: Application
    Filed: May 25, 2018
    Publication date: May 21, 2020
    Inventors: Niels SVENSTRUP, Jun ZHANG, Jikui SUN, Yuyin CHEN, Jianshe KONG, Rujian MA, Junhua ZHANG, Liang QIN, Huanming XIAO, Jinxu SUN, Xiao MENG, Fenglai SUN, Jingyang ZHU