Patents by Inventor Sergio Sandoval

Sergio Sandoval 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).

  • Patent number: 9657030
    Abstract: The present disclosure provides processes for the N-dealkylation of tertiary amines and the use of transition metal catalysts to prepare tertiary N-allyl amine derivatives and secondary amine derivatives thereof. The tertiary amines can be alkaloids and, more particularly, the tertiary amines can be opioids. In specific embodiments, the present disclosure provides methods for use in processes for the synthesis of naloxone and naltrexone from oripavine.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: May 23, 2017
    Assignee: Rhodes Technologies
    Inventors: Joshua Robert Giguere, Keith Edward McCarthy, Helge Alfred Reisch, Sergio Sandoval, Jake Larry Stymiest
  • Patent number: 9624232
    Abstract: The present disclosure provides processes for the N-dealkylation of tertiary amines and the use of transition metal catalysts to prepare tertiary N-allyl amine derivatives and secondary amine derivatives thereof. The tertiary amines can be alkaloids and, more particularly, the tertiary amines can be opioids. In specific embodiments, the present disclosure provides methods for use in processes for the synthesis of naloxone and naltrexone from oripavine.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: April 18, 2017
    Assignee: Rhodes Technologies
    Inventors: Joshua Robert Giguere, Keith Edward McCarthy, Helge Alfred Reisch, Sergio Sandoval, Jake Larry Stymiest
  • Patent number: 9593124
    Abstract: The present disclosure provides processes for the N-dealkylation of tertiary amines and the use of transition metal catalysts to prepare tertiary N-allyl amine derivatives and secondary amine derivatives thereof. The tertiary amines can be alkaloids and, more particularly, the tertiary amines can be opioids. In specific embodiments, the present disclosure provides methods for use in processes for the synthesis of naloxone and naltrexone from oripavine.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: March 14, 2017
    Assignee: Rhodes Technologies
    Inventors: Joshua Robert Giguere, Keith Edward McCarthy, Helge Alfred Reisch, Sergio Sandoval, Jake Larry Stymiest
  • Patent number: 9499557
    Abstract: The present disclosure provides processes for the N-dealkylation of tertiary amines and the use of transition metal catalysts to prepare tertiary N-allyl amine derivatives and secondary amine derivatives thereof. The tertiary amines can be alkaloids and, more particularly, the tertiary amines can be opioids. In specific embodiments, the present disclosure provides methods for use in processes for the synthesis of naloxone and naltrexone from oripavine.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: November 22, 2016
    Assignee: Rhodes Technologies
    Inventors: Joshua Robert Giguere, Keith Edward McCarthy, Helge Alfred Reisch, Sergio Sandoval, Jake Larry Stymiest
  • Publication number: 20160159813
    Abstract: The present disclosure provides improved methods for N-dealkylation of tertiary amines, including methods for N-demethylation of alkaloids and opioids, in which the dealkylation reaction is carried out in a solvent comprising a tertiary alcohol. The present disclosure also provides improved processes for preparing semi-synthetic opioids that incorporate the disclosed methods for N-dealkylation of tertiary amines.
    Type: Application
    Filed: February 11, 2016
    Publication date: June 9, 2016
    Inventors: Joshua Robert GIGUERE, Helge Alfred REISCH, Sergio SANDOVAL, Jake Larry STYMIEST
  • Patent number: 9309258
    Abstract: The present disclosure provides improved methods for N-dealkylation of tertiary amines, including methods for N-demethylation of alkaloids and opioids, in which the dealkylation reaction is carried out in a solvent comprising a tertiary alcohol. The present disclosure also provides improved processes for preparing semi-synthetic opioids that incorporate the disclosed methods for N-dealkylation of tertiary amines.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: April 12, 2016
    Assignee: Rhodes Technologies
    Inventors: Joshua Robert Giguere, Helge Alfred Reisch, Sergio Sandoval, Jake Larry Stymiest
  • Publication number: 20150353568
    Abstract: The present disclosure provides processes for the N-dealkylation of tertiary amines and the use of transition metal catalysts to prepare tertiary N-allyl amine derivatives and secondary amine derivatives thereof. The tertiary amines can be alkaloids and, more particularly, the tertiary amines can be opioids. In specific embodiments, the present disclosure provides methods for use in processes for the synthesis of naloxone and naltrexone from oripavine.
    Type: Application
    Filed: August 14, 2015
    Publication date: December 10, 2015
    Inventors: Joshua Robert Giguere, Keith Edward McCarthy, Helge Alfred Reisch, Sergio Sandoval, Jake Larry Stymiest
  • Publication number: 20150353567
    Abstract: The present disclosure provides processes for the N-dealkylation of tertiary amines and the use of transition metal catalysts to prepare tertiary N-allyl amine derivatives and secondary amine derivatives thereof. The tertiary amines can be alkaloids and, more particularly, the tertiary amines can be opioids. In specific embodiments, the present disclosure provides methods for use in processes for the synthesis of naloxone and naltrexone from oripavine.
    Type: Application
    Filed: August 14, 2015
    Publication date: December 10, 2015
    Inventors: Joshua Robert GIGUERE, Keith Edward McCarthy, Helge Alfred Reisch, Sergio Sandoval, Jake Larry Stymiest
  • Publication number: 20150353569
    Abstract: The present disclosure provides processes for the N-dealkylation of tertiary amines and the use of transition metal catalysts to prepare tertiary N-allyl amine derivatives and secondary amine derivatives thereof. The tertiary amines can be alkaloids and, more particularly, the tertiary amines can be opioids. In specific embodiments, the present disclosure provides methods for use in processes for the synthesis of naloxone and naltrexone from oripavine.
    Type: Application
    Filed: August 14, 2015
    Publication date: December 10, 2015
    Inventors: Joshua Robert Giguere, Keith Edward McCarthy, Helge Alfred Reisch, Sergio Sandoval, Jake Larry Stymiest
  • Publication number: 20150336972
    Abstract: The present disclosure provides processes for the N-dealkylation of tertiary amines and the use of transition metal catalysts to prepare tertiary N-allyl amine derivatives and secondary amine derivatives thereof. The tertiary amines can be alkaloids and, more particularly, the tertiary amines can be opioids. In specific embodiments, the present disclosure provides methods for use in processes for the synthesis of naloxone and naltrexone from oripavine.
    Type: Application
    Filed: August 4, 2015
    Publication date: November 26, 2015
    Inventors: Joshua Robert Giguere, Keith Edward McCarthy, Helge Alfred Reisch, Sergio Sandoval, Jake Larry Stymiest
  • Patent number: 9127014
    Abstract: The present disclosure provides processes for the N-dealkylation of tertiary amines and the use of transition metal catalysts to prepare tertiary N-allyl amine derivatives and secondary amine derivatives thereof. The tertiary amines can be alkaloids and, more particularly, the tertiary amines can be opioids. In specific embodiments, the present disclosure provides methods for use in processes for the synthesis of naloxone and naltrexone from oripavine.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: September 8, 2015
    Assignee: Rhodes Technologies
    Inventors: Joshua Robert Giguere, Keith Edward McCarthy, Helge Alfred Reisch, Sergio Sandoval, Jake Larry Stymiest
  • Publication number: 20150087839
    Abstract: The present disclosure provides improved methods for N-dealkylation of tertiary amines, including methods for N-demethylation of alkaloids and opioids, in which the dealkylation reaction is carried out in a solvent comprising a tertiary alcohol. The present disclosure also provides improved processes for preparing semi-synthetic opioids that incorporate the disclosed methods for N-dealkylation of tertiary amines.
    Type: Application
    Filed: December 2, 2014
    Publication date: March 26, 2015
    Inventors: Joshua Robert GIGUERE, Helge Alfred REISCH, Sergio SANDOVAL, Jake Larry STYMIEST
  • Patent number: 8921556
    Abstract: The present disclosure provides improved methods for N-dealkylation of tertiary amines, including methods for N-demethylation of alkaloids and opioids, in which the dealkylation reaction is carried out in a solvent comprising a tertiary alcohol. The present disclosure also provides improved processes for preparing semi-synthetic opioids that incorporate the disclosed methods for N-dealkylation of tertiary amines.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: December 30, 2014
    Assignee: Rhodes Technologies
    Inventors: Joshua Robert Giguere, Helge Alfred Reisch, Sergio Sandoval, Jake Larry Stymiest
  • Publication number: 20090068324
    Abstract: A frozen confection holding apparatus for use with frozen confections having either flat sticks or cylindrical sticks. The frozen confection holding apparatus includes an aperture assembly adapted and constructed to alternatively receive a flat stick of a frozen confection and a cylindrical stick of a frozen confection. A cylindrical gripping surface has an outer diameter slightly less than an inner diameter of a standard push-pop tube. In an embodiment, the frozen confection holding apparatus includes a first aperture having an inner volume conforming to the shape of a flat stick of a frozen confection, and a second aperture having an inner volume conforming to the shape of a cylindrical stick of a frozen confection. The frozen confection holder is movable between a first orientation in which the first aperture receives a flat stick of a frozen confection, and a second orientation in which the second aperture receives a cylindrical stick of a frozen confection.
    Type: Application
    Filed: September 6, 2007
    Publication date: March 12, 2009
    Inventor: Sergio Sandoval