Patents by Inventor David Cantillo

David Cantillo 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).

  • PROCESSES FOR PREPARING NOR-OPIOID COMPOUNDS AND OPIOID ANTAGONISTS BY ELECTROCHEMICAL N-DEMETHYLATION
    Publication number: 20230242547
    Abstract: The present disclosure relates to a process for preparing a nor-opioid compound wherein an opioid precursor compound is electrochemically N-demethylated. The present disclosure further relates to a process for preparing an opioid antagonist compound, wherein an opioid precursor compound is electrochemically N-demethylated and the thus obtained nor-opioid compound is alkylated again at its secondary amine functional group.
    Type: Application
    Filed: May 10, 2021
    Publication date: August 3, 2023
    Inventors: Gabriel GLOTZ, David CANTILLO NIEVES, Christian Oliver KAPPE
  • Processes And Oxazolidine-Containing Intermediates For The Preparation Of Morphine Analogs And Derivatives
    Publication number: 20190127389
    Abstract: The present invention relates to processes useful in the preparation of morphine analogs and derivatives, such as naltrexone, naloxone and nalbuphine and intermediates in the synthesis of said morphine analogs and derivatives. In a particular example, the process begins with for example oxymorphone, oxycodone, 14-hydroxycodeinone or 14-hydroxymorphinone, and includes the formation of an oxazolidine-containing intermediate using catalytic oxidation.
    Type: Application
    Filed: April 21, 2017
    Publication date: May 2, 2019
    Applicant: Noramco, Inc.
    Inventors: Christopher Oliver Kappe, Bernhard Gutmann, Ulrich Weigl, Patrick Egli, Douglas Phillip Cox, David Cantillo