Patents by Inventor David W. Berberich

David W. Berberich 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).

  • Publication number: 20110015398
    Abstract: The present invention provides 3-oxy-hydromorphone derivatives, and in particular, 3-ester, 3-carbonate, and 3-sulfonate derivatives of hydromorphone.
    Type: Application
    Filed: July 9, 2010
    Publication date: January 20, 2011
    Applicant: Mallinckrodt Inc.
    Inventors: Gary L. Cantrell, Robert E. Halvachs, Frank W. Moser, David W. Berberich, Peter X. Wang
  • Publication number: 20110015219
    Abstract: The present invention provides (+)-morphinans comprising Toll-like receptor 9 (TLR9) antagonist activity, as well as a method for identifying (+)-morphinans that may be therapeutically effective by determining whether the (+)-morphinan inhibits the activation of TLR9. Also provided are methods of using the (+)-morphinans comprising TLR9 antagonist activity to treat conditions such as traumatic pain, neuropathic pain, inflammatory disorders, acetaminophen toxicity, autoimmune disorders, neurodegenerative disorders, and cancer.
    Type: Application
    Filed: July 16, 2010
    Publication date: January 20, 2011
    Applicant: Mallinckrodt Inc.
    Inventors: Bobby N. Trawick, David W. Berberich
  • Publication number: 20100305688
    Abstract: In certain embodiments, the invention relates to an implantable medical device that includes a body having an internal cavity. Receptor sites in the internal cavity may be adapted to repeatedly bind to, temporarily hold, and release an active agent. An opening may extend through the body and into the internal cavity to allow the active agent into and out of the internal cavity. This opening may be sized and shaped to prevent blood cells from entering the internal cavity through the opening while allowing the active agent to enter and/or exit the cavity via the opening. A polymeric structure may be located in the internal cavity. This polymeric structure may include artificial receptor site mimics for the active agent.
    Type: Application
    Filed: May 27, 2009
    Publication date: December 2, 2010
    Applicant: Mallinckrodt Inc.
    Inventors: Gary L. Cantrell, David W. Berberich
  • Publication number: 20100303882
    Abstract: In certain embodiments, the invention relates to an implantable medical device that includes a body having an internal cavity. Receptor sites in the internal cavity may be adapted to repeatedly bind to, temporarily hold, and release an active agent. An opening may extend through the body and into the internal cavity to allow the active agent into and out of the internal cavity. This opening may be sized and shaped to prevent blood cells from entering the internal cavity through the opening while allowing the active agent to enter and/or exit the cavity via the opening. A polymeric structure may be located in the internal cavity. This polymeric structure may include artificial receptor site mimics for the active agent.
    Type: Application
    Filed: May 27, 2009
    Publication date: December 2, 2010
    Applicant: Mallinckrodt Inc.
    Inventors: Gary L. Cantrell, David W. Berberich
  • Publication number: 20100261907
    Abstract: The present invention provides processes for the preparation of saturated ketone morphinan compounds. In particular, the invention provides processes for the conversion of a morphinan comprising an allyl alcohol ring moiety into a morphinan comprising a saturated ketone ring moiety by an isomerization reaction catalyzed by an inorganic salt of a late transition metal.
    Type: Application
    Filed: April 9, 2010
    Publication date: October 14, 2010
    Applicant: Mallinckrodt Inc.
    Inventors: Peter X. Wang, Tao Jiang, David W. Berberich, Narayanasamy Gurusamy, Catherine K. Jung
  • Publication number: 20100261904
    Abstract: The present invention provides processes for the preparation of saturated ketone morphinan compounds by catalytic isomerization. In particular, the invention provides processes for the conversion of a morphinan comprising an allyl alcohol ring moiety into a morphinan comprising a saturated ketone ring moiety by an isomerization reaction catalyzed by an allyl-transition metal catalyst.
    Type: Application
    Filed: April 9, 2010
    Publication date: October 14, 2010
    Applicant: Mallinckrodt Inc.
    Inventors: Peter X. Wang, Tao Jiang, David W. Berberich
  • Publication number: 20100216997
    Abstract: The present invention provides (+)-morphinanium N-oxide compounds or pharmaceutically acceptable salts thereof. The invention also provides processes for producing (+)-morphinanium N-oxides or pharmaceutically acceptable salts thereof from the corresponding tertiary N-substituted (+)-morphinan compound or pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: February 23, 2010
    Publication date: August 26, 2010
    Applicant: Mallinckrodt Inc.
    Inventors: Gary L. Cantrell, Peter X. Wang, Bobby N. Trawick, Christopher W. Grote, David W. Berberich, Hang Sun, Subo Liao
  • Publication number: 20100216995
    Abstract: The present invention provides (+)-morphinanium compounds comprising substituted 6-hydroxy or 6-amine groups. The invention also provides methods for inhibiting microglial activation by administering the compounds of the invention.
    Type: Application
    Filed: February 23, 2010
    Publication date: August 26, 2010
    Applicant: Mallinckrodt Inc.
    Inventors: Christopher W. Grote, Gary L. Cantrell, Peter X. Wang, Bobby N. Trawick, David W. Berberich
  • Publication number: 20100216996
    Abstract: The present invention provides (+)-morphinanium quaternary salts. The invention also provides processes for producing (+)-morphinanium quaternary salts from tertiary N-substituted (+)-morphinan compounds.
    Type: Application
    Filed: February 23, 2010
    Publication date: August 26, 2010
    Applicant: Mallinckrodt Inc.
    Inventors: Gary L. Cantrell, Peter X. Wang, Bobby N. Trawick, Christopher W. Grote, David W. Berberich
  • Publication number: 20100081819
    Abstract: The invention provides processes for the preparation of morphinans having a tertiary amine. In particular, the present invention provides processes for the formation of tertiary amine alkaloids by direct N-alkylation of secondary amine alkaloids, the processes co-mediated by an alkylating agent and a protic solvent or a mixture of a protic solvent and an aprotic solvent.
    Type: Application
    Filed: September 29, 2009
    Publication date: April 1, 2010
    Applicant: Mallinckrodt Inc.
    Inventors: Peter X. Wang, Tao Jiang, David W. Berberich
  • Publication number: 20100068242
    Abstract: In certain embodiments, the invention relates to an implantable medical device that includes a body having an internal cavity. Receptor sites in the internal cavity may be adapted to repeatedly bind to, temporarily hold, and release an active agent. An opening may extend through the body and into the internal cavity to allow the active agent into and out of the internal cavity. This opening may be sized and shaped to prevent blood cells from entering the internal cavity through the opening while allowing the active agent to enter and/or exit the cavity via the opening. A polymeric structure may be located in the internal cavity. This polymeric structure may include artificial receptor site mimics for the active agent.
    Type: Application
    Filed: November 15, 2007
    Publication date: March 18, 2010
    Inventors: Gary L. Cantrell, David W. Berberich
  • Publication number: 20100069639
    Abstract: The present invention provides processes for the synthesis of five and six membered rings. In particular, the present invention provides processes for the synthesis of five and six membered rings in alkaloids.
    Type: Application
    Filed: September 14, 2009
    Publication date: March 18, 2010
    Applicant: Mallinckrodt Inc.
    Inventors: Peter X. Wang, Tao Jiang, David W. Berberich
  • Patent number: 7671204
    Abstract: The present invention provides a synthetic process for the N-demethylation of N-methyl morphinans. In particular, the invention provides improved synthetic methods for the preparation of N-demethylated morphinan compounds that may be employed as starting materials, for example, commonly available N-methyl opiates such as oripavine and thebaine, and C(3)-protected hydroxy derivatives of oripavine.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: March 2, 2010
    Assignee: Mallinckrodt Inc.
    Inventors: Peter X. Wang, Tao Jiang, Gary L. Cantrell, David W. Berberich
  • Publication number: 20090221825
    Abstract: Processes are described for the synthesis of 3-hydroxymorphinan derivatives by hydrolysis of side products from the O-demethylation of 3-methoxymorphinan derivatives.
    Type: Application
    Filed: February 18, 2009
    Publication date: September 3, 2009
    Applicant: Mallinckrodt Inc.
    Inventors: Peter X. Wang, Tao Jiang, Gary L. Cantrell, David W. Berberich, Frank W. Moser, Jian Bao
  • Publication number: 20090156818
    Abstract: The invention generally provides processes and intermediate compounds useful for the production of (+)-opiates. Non-limiting examples of (+) opiates that may be derived from one or more compounds of the invention include (+)-noroxymorphone, (+)-naltrexone, (+)-naloxone, (+)-N-cyclopropylmethylnorhydrocodone, (+)-N-cycloproylmethylnorhydromorphone, (+)-N-allylnorhydrocodone, (+)-N-allylnorhydromorphone, (+)-noroxycodone, (+)-naltrexol, (+)-naloxol, and (+)-3-O-methyl-naltrexone.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 18, 2009
    Inventors: Peter X. Wang, Tao Jiang, Gary L. Cantrell, David W. Berberich, Bobby N. Trawick, Todd Osiek, Subo Liao, Frank W. Moser, Joseph P. Mcclurg
  • Publication number: 20090156816
    Abstract: The invention generally provides processes and intermediate compounds useful for the production of sinomenine derivatives. In particular, the process may encompass synthetic routes for the production of (+)-sinomenine derivatives and their intermediates.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 18, 2009
    Inventors: Peter X. Wang, Tao Jiang, Gary L. Cantrell, David W. Berberich, Bobby N. Trawick, Subo Liao, John Brandt
  • Publication number: 20090156820
    Abstract: The invention generally provides processes and intermediate compounds useful for the production of (+) nal morphinan compounds. In particular, the process encompasses synthetic routes for the production of (+) nal morphinan compounds or derivatives of (+) nal morphinan compounds from (+)-morphinan substrates such as (+)-hydrocodone, (+)-norhydrocodone or derivatives of either compound.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 18, 2009
    Inventors: Peter X. Wang, Tao Jiang, Gary L. Cantrell, David W. Berberich, Bobby N. Trawick, Subo Liao
  • Publication number: 20090156819
    Abstract: The invention provides a process for the conversion of opioid derivatives into normorphinan compounds useful for making “nal” compound analgesics and antagonists. In particular, the process may be used for the production of pure normorphinan salts from crude opioid substrates.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 18, 2009
    Inventors: Peter X. Wang, Tao Jiang, Gary L. Cantrell, David W. Berberich, Jian Bao, Bobby N. Trawick
  • Publication number: 20090156817
    Abstract: The invention generally provides processes for the production of buprenophine and derivatives of buprenorphine. In particular, the process may encompass synthetic routes for the production of buprenorphine or derivatives of buprenorphine from norhydromorphone or derivatives of norhydromorphone.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 18, 2009
    Inventors: Peter X. Wang, Tao Jiang, Gary L. Cantrell, David W. Berberich, Bobby N. Trawick, Subo Liao
  • Publication number: 20090156815
    Abstract: The present invention provides a synthetic process for the N-demethylation of N-methyl morphinans. In particular, the invention provides improved synthetic methods for the preparation of N-demethylated morphinan compounds that may be employed as starting materials, for example, commonly available N-methyl opiates such as oripavine and thebaine, and C(3)-protected hydroxy derivatives of oripavine.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 18, 2009
    Inventors: Peter X. Wang, Tao Jiang, Gary L. Cantrell, David W. Berberich