Patents by Inventor Joannes Petrus Van Dun

Joannes Petrus Van Dun 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).

  • Resolution of (±)-methyl phenyl[4-[4-[[[4?(trifluoromethyl)-2-biphenylyl]carbonyl]amino]Phenyl]-1-piperidinyl]acetate
    Patent number: 8461341
    Abstract: The present invention relates to a resolution process of (±)-methyl phenyl[4-[4-[[[4?-(trifluoromethyl)-2-biphenylyl]carbonyl]amino]phenyl]-1-piperidinyl]acetate to isolate the MTP (microsomal triglyceride transfer protein) inhibitor methyl (2S)-phenyl[4-[4-[[[4?-(trifluoromethyl)-2-biphenylyl]carbonyl]amino]phenyl]-1-piperidinyl]acetate and an epimerisation procedure for racemizing methyl (2R)-phenyl[4-[4-[[[4?-(trifluoromethyl)-2-biphenylyl]carbonyl]amino]phenyl]-1-piperidinyl]acetate.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: June 11, 2013
    Assignee: Janssen Pharmaceutica NV
    Inventors: Alex Herman Copmans, Jérôme Albert Joseph Hoet, Albert Louis Anna Willemsens, Wouter Louis J Couck, Joannes Petrus Van Dun
  • Preparation of 9-hydroxy-3-(2-hydroxyethyl)-2-methyl-4-pyrido[1,2-A]pyrimidin-4-one
    Patent number: 7723518
    Abstract: The present invention concerns a process for preparing crystalline 3-(2-chloro-ethyl)-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one substantially free of 2-acetylbutyrolactone.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: May 25, 2010
    Assignee: Janssen Pharmaceutica N.V.
    Inventors: Eduard Jozef Contantia Vreysen, Joannes Petrus Van Dun, Wim Albert Alex Aelterman
  • Preparation of Aseptic 3-[2-[4-((6-Fluoro-1,2-Benzisoxazol-3-Yl)-1-Piperidinyl]-6,7,8,9-Tetrahydro-9-Hydroxy-2-Methyl-4H-Pyrido[1,2-a]Pyrimidin-4-One Palmitate Ester
    Publication number: 20080214808
    Abstract: The present invention concerns a process for preparing aseptic crystalline 3-[2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl]-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one palmitate ester (I) substantially free of 3-[2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl]-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one (II-a), 3-[2-[4-(6-fluoro-1,2-benzisoxazol-3 -yl)-1-piperidinyl]ethyl]-6,7-dihydro-2-methyl-4H-pyrido[1,2-a]-pyrimidin-4-one (II-b), and 3-[2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]-ethyl]-6,7,8,9-tetrahydro-2-methyl-9-pentadecyl-4H-pyrido[1,2-a]pyrimidin-4-one (III), and having an average particle size ranging from 20 to 150 ?m.
    Type: Application
    Filed: April 20, 2006
    Publication date: September 4, 2008
    Inventors: Thomas Frederik Ernestine Spittaels, Joannes Petrus Van Dun, Jurgen Alois Verbraeken, Benny Wouters