Patents by Inventor Qiuqin He

Qiuqin He 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).

  • Method for preparing rosuvastatin sodium
    Patent number: 9850213
    Abstract: The present invention belongs to the technical field of organic chemistry, and specifically relates to a method for preparing rosuvastatin sodium.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: December 26, 2017
    Assignee: JIANGXI BOYA SEEHOT PHARMACEUTICAL CO., LTD.
    Inventors: Fener Chen, Fangjun Xiong, Jie Li, Pingping Zhan, Lingjun Xu, Qiuqin He, Wenxue Chen, Xiayun Huang, Yan Wu
  • METHOD FOR PREPARING ROSUVASTATIN SODIUM
    Publication number: 20170183314
    Abstract: The present invention belongs to the technical field of organic chemistry, and specifically relates to a method for preparing rosuvastatin sodium.
    Type: Application
    Filed: January 10, 2014
    Publication date: June 29, 2017
    Inventors: FENER CHEN, Fangjun XIONG, Jie LI, Pingping ZHAN, Lingjun XU, Qiuqin HE, Wenxue CHEN, Xiayun Huang, Yan WU
  • 2-ARYL-ZINC-PROPIONATE CATALYST AND PREPARATION METHOD AND USE THEREOF
    Publication number: 20160326085
    Abstract: The present invention belongs to the technical field of chemical catalysts, and particularly relates to a zinc 2-arylpropionate catalyst, a preparation method therefor and use thereof The structural formula of the zinc 2-arylpropionate catalyst of the present invention is one of the following structures. The catalyst can be used for homogeneous catalysis of a 1,2-aryl rearrangement reaction of ?-haloarylketal, and especially for synthesis of high yield and environmentally friendly 2-arylpropanonic acid non-steroidal anti-inflammatory analgesic drugs, such as, ibuprofen, ketoprofen, loxoprofen, flurbiprofen, fenoprofen, or naproxen and the like.
    Type: Application
    Filed: December 18, 2013
    Publication date: November 10, 2016
    Inventors: Fener CHEN, Qiuqin HE, Fangjun XIONG, Wenxue CHEN
  • A METHOD FOR PREPARING (+)-TRICYCLIC HYDROXYL LACTONE
    Publication number: 20150376199
    Abstract: The invention belongs to the technical field of organic chemistry, in particular being a method for preparing (+)-tricyclic hydroxyl lactone. The preparation of the (+)-tricyclic hydroxyl lactone compound in the prior art has lengthy steps, low stereoselectivity and high costs. The (+)-tricyclic hydroxyl lactone of the invention is obtained by an asymmetric oxidation reaction of prochiral tricyclic lactones in an organic solvent with an optically active Davis oxidant in the presence of an organic base. The method of the invention uses easily available raw materials, has low costs, good selectivity, and is suitable for large-scale preparation.
    Type: Application
    Filed: January 10, 2014
    Publication date: December 31, 2015
    Applicant: Fudan University
    Inventors: Fener Chen, Qiuqin He, Fangjun Xiong, Wenxue Chen, Xinlong Wang