Patents by Inventor Daniel Magparangalan

Daniel Magparangalan 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).

  • Opiate Intermediates and Methods of Synthesis
    Publication number: 20080097100
    Abstract: Novel opiate intermediate compositions and methods of synthesis that include changing the substitution pattern on the aromatic ring of the pre-Grewe intermediate are provided. The intermediates are morphinane derivatives of formula (10) wherein X is a F or Cl and R is selected from the group consisting of an H, alkyl, aryl, acyl, formyl, COR?, CONHR?, COOR, Bn(benzyl), alkyl(methyl), and sulfonamide SO2CH2COPh.
    Type: Application
    Filed: October 21, 2005
    Publication date: April 24, 2008
    Inventors: Peter Wang, Frank Moser, Gary Cantrell, Daniel Magparangalan
  • Method for the catalytic production of hydrocodone, hydromorphone, and derivatives thereof
    Publication number: 20060155130
    Abstract: A method for the catalytic production of hydrocodone derivatives and hydromorphone derivatives, respectively, utilizing a transition metal catalyst of the formula [M(PR4R5R6)nXm]p; wherein M is a Group VIII transition metal; R4, R5 and R6 are selected from the group consisting of alkyl, aryl, alkoxyl, phenoxy and combinations thereof; X is a halide or an anion; n is 1, 2, 3 or 4; m is 1 or 2; and p is at least 1.
    Type: Application
    Filed: March 7, 2006
    Publication date: July 13, 2006
    Inventors: Peter Wang, Frank Moser, Gary Cantrell, Daniel Magparangalan, Jian Bao