Patents by Inventor Zheng-Jun Xia

Zheng-Jun Xia 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).

  • 1,3-oxazolidine-2-one-like compound, preparation method and uses thereof
    Patent number: 9012631
    Abstract: This invention provides 1,3-oxazolidin-2-one compounds of formula I and their salts, their preparation methods, and use in the preparation of linezolid racemate and its optical isomer, which are used as oxazolidinone antibacterial agents. In the formula, R is H, hydroxyl, halogen, C1-C12 alkyl, C1-C12 alkoxy, nitro and carboxyl; and R can be placed at any position on the benzene rings; and the compound is a racemate or an optical isomer.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: April 21, 2015
    Assignees: Yabang Pharmaceutical Co., Ltd, Jiangsu Yabang Shengyuan Pharmaceutical Co., Ltd, Changzhou Yabang Pharmaceutical Co., Ltd
    Inventors: Si-Qing Wang, Yong Deng, Zai-Xin Chen, Hui Zhang, Zhi-Pei San, Bai-Yang Mao, Zheng-Jun Xia, Long Jiang, Ming-Guang Zhang, Song Lin, Ming-Lin Wang
  • 1,3-OXAZOLIDINE-2-ONE-LIKE COMPOUND, PREPARATION METHOD AND USES THEREOF
    Publication number: 20140171640
    Abstract: This invention provides 1,3-oxazolidin-2-one compounds of formula I and their salts, their preparation methods, and use in the preparation of linezolid racemate and its optical isomer, which are used as oxazolidinone antibacterial agents. In the formula, R is H, hydroxyl, halogen, C1-C12 alkyl, C1-C12 alkoxy, nitro and carboxyl; and R can be placed at any position on the benzene rings; and the compound is a racemate or an optical isomer.
    Type: Application
    Filed: August 10, 2011
    Publication date: June 19, 2014
    Applicants: Yabang Pharmaceutical Co., Ltd, Changzhou Yabang Pharmaceutical Co., Ltd., Jiangsu Yabang Shengyuan Pharmaceutical Co., Ltd.
    Inventors: Si-Qing Wang, Yong Deng, Zai-Xin Chen, Hui Zhang, Zhi-Pei San, Bai-Yang Mao, Zheng-Jun Xia, Long Jiang, Ming-Guang Zhang, Song Lin, Ming-Lin Wang