Patents Assigned to Penick Corporation
  • Patent number: 9487532
    Abstract: Methods are provided which include converting oripavine to other opiates, including converting oripavine to naltrexone, buprenorphine, 14-hydroxymorphinone and/or converting 14-hydroxymorphinone to oxymorphone. Purification and salt formation are optionally included.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: November 8, 2016
    Assignee: PENICK CORPORATION
    Inventor: Bao-Shan Huang
  • Patent number: 9108974
    Abstract: Methods are provided which include converting oripavine to other opiates, including converting oripavine to naltrexone, buprenorphine, 14-hydroxymorphinone and/or converting 14-hydroxymorphinone to oxymorphone. Purification and salt formation are optionally included.
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: August 18, 2015
    Assignee: PENICK CORPORATION
    Inventor: Bao-Shan Huang
  • Publication number: 20140051861
    Abstract: Methods are provided which include converting oripavine to other opiates, including converting oripavine to naltrexone, buprenorphine, 14-hydroxymorphinone and/or converting 14-hydroxymorphinone to oxymorphone. Purification and salt formation are optionally included.
    Type: Application
    Filed: October 23, 2013
    Publication date: February 20, 2014
    Applicant: PENICK CORPORATION
    Inventor: Bao-Shan HUANG
  • Patent number: 8357802
    Abstract: Methods are provided which include converting oripavine to other opiates, including converting oripavine to naltrexone, buprenorphine, 14-hydroxymorphinone and/or converting 14-hydroxymorphinone to oxymorphone. Purification and salt formation are optionally included.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: January 22, 2013
    Assignee: Penick Corporation
    Inventor: Bao-Shan Huang
  • Publication number: 20120330017
    Abstract: Methods are provided which include converting oripavine to other opiates, including converting oripavine to naltrexone, buprenorphine, 14-hydroxymorphinone and/or converting 14-hydroxymorphinone to oxymorphone. Purification and salt formation are optionally included.
    Type: Application
    Filed: August 31, 2012
    Publication date: December 27, 2012
    Applicant: PENICK CORPORATION
    Inventor: Bao-Shan HUANG
  • Publication number: 20120196888
    Abstract: Methods are provided which include converting oripavine to other opiates, including converting oripavine to naltrexone, buprenorphine, 14-hydroxymorphinone and/or converting 14-hydroxymorphinone to oxymorphone. Purification and salt formation are optionally included.
    Type: Application
    Filed: February 28, 2012
    Publication date: August 2, 2012
    Applicant: PENICK CORPORATION
    Inventor: Bao-Shan HUANG
  • Publication number: 20120156290
    Abstract: Methods are provided which include converting oripavine to other opiates, including converting oripavine to naltrexone, buprenorphine, 14-hydroxymorphinone and/or converting 14-hydroxymorphinone to oxymorphone. Purification and salt formation are optionally included.
    Type: Application
    Filed: February 28, 2012
    Publication date: June 21, 2012
    Applicant: PENICK CORPORATION
    Inventor: Bao-Shan HUANG
  • Patent number: 8134002
    Abstract: Methods are provided which include converting oripavine to other opiates, including converting oripavine to 14-hydroxymorphinone and/or converting 14-hydroxymorphinone to oxymorphone. Purification and salt formation are optionally included.
    Type: Grant
    Filed: May 2, 2007
    Date of Patent: March 13, 2012
    Assignee: Penick Corporation
    Inventor: Bao-Shan Huang
  • Publication number: 20110118466
    Abstract: Methods are provided which include converting oripavine to other opiates, including converting oripavine to naltrexone, buprenorphine, 14-hydroxymorphinone and/or converting 14-hydroxymorphinone to oxymorphone. Purification and salt formation are optionally included.
    Type: Application
    Filed: January 25, 2011
    Publication date: May 19, 2011
    Applicant: Penick Corporation
    Inventor: Bao-Shan HUANG
  • Publication number: 20110009634
    Abstract: Methods are provided which include converting oripavine to other opiates, including converting oripavine to 14-hydroxymorphinone and/or converting 14-hydroxymorphinone to oxymorphone. Purification and salt formation are optionally included.
    Type: Application
    Filed: May 2, 2007
    Publication date: January 13, 2011
    Applicant: PENICK CORPORATION
    Inventor: Bao-Shan Huang
  • Publication number: 20100274019
    Abstract: Methods are provided which include converting oripavine to other opiates, including converting oripavine to naltrexone, buprenorphine, 14-hydroxymorphinone and/or converting 14-hydroxymorphinone to oxymorphone. Purification and salt formation are optionally included.
    Type: Application
    Filed: October 16, 2007
    Publication date: October 28, 2010
    Applicant: PENICK CORPORATION
    Inventor: Bao-Shan Huang
  • Publication number: 20080125592
    Abstract: Methods are provided which include converting oripavine to other opiates, including converting oripavine to naltrexone, buprenorphine, 14-hydroxymorphinone and/or converting 14-hydroxymorphinone to oxymorphone. Purification and salt formation are optionally included.
    Type: Application
    Filed: October 16, 2007
    Publication date: May 29, 2008
    Applicant: PENICK CORPORATION
    Inventor: Bao-Shan Huang
  • Patent number: 6013796
    Abstract: For the synthesis of 3-methylnaltrexone from codeine in this invention, codeine is converted to 6-acetylcodeine, which is N-demethylated to 6-acetylcodeine hydrochloride, followed by alkylating the nitrogen to form 17-cyclopropylmethylnorcodeine. The latter is oxidized to 17-cyclopropylmethylnorcodeinone. For the synthesis of naltrexone from morphine in this invention, morphine is converted to 3-benzylnormorphine as described above in the synthesis of noroxymorphone. 3-Benzylnormorphine is reacted with cyclopropylmethyl halide to produce 3-benzyl-17cyclopropylmethylnormorphine, a novel compound, which is oxidized to 3-benzyl-17-cyclopropylmethyl-normorphinone, a novel compound, by Swern oxidation.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: January 11, 2000
    Assignee: Penick Corporation
    Inventors: Bao-Shan Huang, Yansong Lu, Ben-Yi Ji, Aris P Christodoulou
  • Patent number: 6008355
    Abstract: A process is provided for preparing oxycodone from codeine comprising either:(A) the steps of(1) oxidizing codeine so as to form codeinone;(2) converting codeinone to oxycodone in a two-step-one-pot reaction: first reacting codeinone with hydrogen peroxide in water in the presence of an acid at from about 15.degree. to about 70.degree. C. to form 14-hydroxycodeinone and then catalytically hydrogenating 14-hydroxycodeinone in its original reaction mixture to form oxycodone; or(B) the steps of(1) oxydizing codeine so as to form codeinone;(2) reacting codeinone with an acylating agent so as to form codeinone dienol acylate;(3) oxidizing codeinone dienol acylate with an oxidation agent in water or a solubilizing solvent mixture in the presence of an acid at from about 15.degree. to about 70.degree. C. to form 14-hydroxycodeinone;(4) hydrogenating 14-hydroxycodeinone in its original reaction mixture to form oxycodone.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: December 28, 1999
    Assignee: Penick Corporation
    Inventors: Bao-Shan Huang, Yansong Lu, Ben-Yi Ji, Aris P Christodoulou
  • Patent number: 6008354
    Abstract: The invention provides processes for the conversion of normorphinone and its derivatives, which can be synthesized from morphine, to the corresponding 14-hydroxynormorphinone and its derivatives including oxycodone, oxymorphone, noroxymorphone and naltrexone. Noroxymorphone is a key intermediate for the production of important narcotic analgesics and antagonists. The invention also provides certain novel intermediates.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: December 28, 1999
    Assignee: Penick Corporation
    Inventors: Bao-Shan Huang, Yansong Lu, Ben-Yi Ji, Aris P. Christodoulou
  • Patent number: 5952495
    Abstract: A process is provided for preparing 14-hydroxynormorphinones having the formula: ##STR1## which comprises reacting normorphinones having the formula: ##STR2## wherein R is selected from the group consisting of lower alkyl of 1 to 7 carbon atoms, cycloalkyl-lower alkyl with 3-6 ring carbon atoms, benzyl and a substituted-benzyl having the formula: ##STR3## wherein Q and Q.sup.1 are individually selected from the group consisting of hydrogen, lower alkyl, trifluoromethyl, nitro, dialkylamino and cyano;R' is selected from the group consisting of R, 2-(4-morpholinyl)ethyl, benzyloxy carbonyl and R"C(O)-- wherein R" is lower alkyl of 1-4 carbon atoms;with hydrogen peroxide at a temperature of from about 15.degree. C. to about 70.degree. C. in the presence of an acid and an aqueous solvent system to solubilize the reactant for a period of time so as to form the 14-hydroxynormorphinones.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: September 14, 1999
    Assignee: Penick Corporation
    Inventors: Bao-Shan Huang, Yansong Lu, Ben-Yi Ji, Aris P Christodoulou
  • Patent number: 5948788
    Abstract: Normorphine and normorphinone derivatives are provided as compositions of matter.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: September 7, 1999
    Assignee: Penick Corporation
    Inventors: Bao-Shan Huang, Yansong Lu, Ben-Yi Ji, Aris P Christodoulou
  • Patent number: 5922876
    Abstract: A process is provided for preparing oxymorphone from morphine by: (a) reacting morphine with an acyl halide or anhydride to form 3-acylmorphine, or (b) reacting morphine with benzyl-halide to form 3-benzylmorphine, and thereafter either by (3a) or (3b):(3a) introducing a .beta.-oriented hydroxy group at the 14-position of the 3-acyl- or 3-benzyl-morphinone with aqueous hydrogen peroxide and an acid at at temperature of about 15.degree. to about 70.degree. C. to form the 3-acyl or 3-benzyl-14-hydroxymorphinone;(3b) acylating the 3-acyl or 3-benzyl-morphinone with an acylating agent so as to form the dienol acylate followed by oxidizing the dienol acetate to the corresponding 3-acyl or 3-benzyl-14-hydroxymorphinone;(4) hydrogenating the 3-acyl-14-hydroxymorphinone with a catalyst so as to form the 3-acyloxymorphone;(5) hydrolyzing the 3-acyl-oxymorphone with aqueous acidic or basic solution to form oxymorphone;(6) hydrogenating the 3-benzyl-14-hydroxymorphinone with a catalyst so as to form oxymorphone.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: July 13, 1999
    Assignee: Penick Corporation
    Inventors: Bao-Shan Huang, Yansong Lu, Ben-Yi Ji, Aris P Christodoulou
  • Patent number: 5869669
    Abstract: The invention provides processes for the conversion of normorphinone and its derivatives, which can be synthesized from morphine, to the corresponding 14-hydroxynormorphinone and its derivatives including oxycodone, oxymorphone, noroxymorphone and naltrexone. Noroxymorphone is a key intermediate for the production of important narcotic analgesics and antagonists. The invention also provides certain novel intermediates.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: February 9, 1999
    Assignee: Penick Corporation
    Inventors: Bao-Shan Huang, Yansong Lu, Ben-Yi Ji, Aris P. Christodoulou
  • Patent number: 4956429
    Abstract: A flavor extract is prepared by extraction of coca leaves to form a raw extract and treatment of the raw extract with an ion exchange resin to remove cocaine and ecgonine. The resulting flavor extract has excellent organolyptic properties.
    Type: Grant
    Filed: March 1, 1989
    Date of Patent: September 11, 1990
    Assignee: Penick Corporation
    Inventors: Ronald Harmetz, Louis A. Laurenzo, David V. Petrocine