Patents by Inventor Zhi-Min Wang

Zhi-Min Wang 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).

  • Water as promoter in the nucleophilic substitution of chloride
    Patent number: 6891068
    Abstract: Disclosed is a one step method for preparing a ?-substituted sulfide by treating a ?-halosulfide with a nucleophile in water.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: May 10, 2005
    Assignee: Lexicon Pharmaceuticals, Inc.
    Inventors: Hartmuth C. Kolb, Zhi-Cai Shi, Zhi-Min Wang
  • Water as promoter in the nucleophilic substitution of chloride
    Publication number: 20040015018
    Abstract: Disclosed is a one step method for preparing a &bgr;-substituted sulfide by treating a &bgr;-halosulfide with a nucleophile in water.
    Type: Application
    Filed: March 19, 2003
    Publication date: January 22, 2004
    Inventors: Hartmuch C. Kolb, Zhi-Cai Shi, Zhi-Min Wang
  • One step synthesis of 1,2,3-triazole carboxylic acids
    Patent number: 6642390
    Abstract: Disclosed is a one step method for preparing a 1,2,3-triazole carboxylic acid by treating an azide with a &bgr;-ketoester in the presence of a base.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: November 4, 2003
    Assignee: Lexicon Pharmaceuticals, Inc.
    Inventors: Hartmuth C. Kolb, Cullen Cavallaro, Zhi-Cai Shi, Alexander Gontcharov, Zhi-Min Wang, Paul F. Richardson, Ramanaiah C. Kanamarlapudi
  • One step synthesis of 1,2,3-triazole carboxylic acids
    Publication number: 20030135050
    Abstract: Disclosed is a one step method for preparing a 1,2,3-triazole carboxylic acid by treating an azide with a &bgr;-ketoester in the presence of a base.
    Type: Application
    Filed: July 11, 2002
    Publication date: July 17, 2003
    Inventors: Hartmuth C. Kolb, Cullen Cavallaro, Zhi-Cai Shi, Alexander Gontcharov, Zhi-Min Wang, Paul F. Richardson, Ramanaiah C. Kanamarlapudi