Patents by Inventor Kees Pouwer

Kees Pouwer 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: 20110097315
    Abstract: This invention relates to the enantiomers of 6-[(4-chloro-phenyl)-hydroxy-(3-methyl-3H-imidazol-4-yl)-methyl]-43-[3-(3-hydroxy-3-methyl-but-1-ynyl)-phenyl]-1-methyl-1H-quinolin-2-one, prodrugs thereof, and pharmaceutically acceptable salts and solvates of said compounds and said prodrugs, that are useful in the treatment of hyperproliferative diseases, such as cancers, in mammals. The invention also relates to processes for the production of enantiomerically pure or optically enriched (+)- or (?)-6-[(4-chloro-phenyl)-hydroxy-(3-methyl-3H-imidazol-4-yl)-methyl]-4-[3-(3-hydroxy-3-methyl-but-1-ynyl)-phenyl]-1-methyl-1H-quinolin-2-one enantiomers from a mixture containing two enantiomers using continuous chromatography. The invention further relates to the L-(+)-tartaric acid or (S)-(?)-1,1?-binapthyl-2,2?-diyl hydrogenphosphate salts of (+)-6-[(4-chloro-phenyl)-hydroxy-(3-methyl-3H-imidazol-4-yl)-methyl]-4-[3-(3-hydroxy-3-methyl-but-1-ynyl)-phenyl]-1-methyl-1H-quinolin-2-one.
    Type: Application
    Filed: February 12, 2007
    Publication date: April 28, 2011
    Inventors: R. Mark Guinn, Subramanian Sam Guhan, Karl K. Ng, Derek L. Tickner, Marcus Douglas Ewing, Clifford N. Meltz, Bryan Li, Kees Pouwer
  • Patent number: 7176315
    Abstract: This invention relates to the enantiomers of 6-[(4-chloro-phenyl)-hydroxy-(3-methyl-3H-imidazol-4-yl)-methyl]-4-[3-(3-hydroxy-3-methyl-but-1-ynyl)-phenyl]-1-methyl-1H-quinolin-2-one, prodrugs thereof, and pharmaceutically acceptable salts and solvates of said compounds and said prodrugs, that are useful in the treatment of hyperproliferative diseases, such as cancers, in mammals. The invention also relates to processes for the production of enantiomerically pure or optically enriched (+)- or (?)-6-[(4-chloro-phenyl)-hydroxy-(3-methyl-3H-imidazol-4-yl)-methyl]-4-[3-(3-hydroxy-3-methyl-but-1-ynyl)-phenyl]-1-methyl-1H-quinolin-2-one enantiomers from a mixture containing two enantiomers using continuous chromatography. The invention further relates to the L-(+)-tartaric acid or (S)-(?)-1,1?-binapthyl-2,2?-diyl hydrogenphosphate salts of (+)-6-[(4-chloro-phenyl)-hydroxy-(3-methyl-3H-imidazol-4-yl)-methyl]-4-[3-(3-hydroxy-3-methyl-but-1-ynyl)-phenyl]-1-methyl-1H-quinolin-2-one.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: February 13, 2007
    Assignee: Pfizer Inc
    Inventors: R. Mark Guinn, Subramanian Sam Guhan, Karl K Ng, Derek L. Tickner, Marcus Douglas Ewing, Clifford N. Meltz, Bryan Li, Kees Pouwer
  • Publication number: 20040192727
    Abstract: This invention relates to the enantiomers of 6-[(4-chloro-phenyl)-hydroxy-(3-methyl-3H-imidazol-4-yl)-methyl]-4-[3-(3-hydroxy-3-methyl-but-1-ynyl)-phenyl]-1-methyl-1H-quinolin-2-one, prodrugs thereof, and pharmaceutically acceptable salts and solvates of said compounds and said prodrugs, that are useful in the treatment of hyperproliferative diseases, such as cancers, in mammals. The invention also relates to processes for the production of enantiomerically pure or optically enriched (+)- or (−)-6-[(4-chloro-phenyl)-hydroxy-(3-methyl-3H-imidazol-4-yl)-methyl]-4-[3-(3-hydroxy-3-methyl-but-1-ynyl)-phenyl]-1-methyl-1H-quinolin-2-one enantiomers from a mixture containing two enantiomers using continuous chromatography.
    Type: Application
    Filed: April 14, 2004
    Publication date: September 30, 2004
    Applicant: Pfizer Inc.
    Inventors: R. Mark Guinn, Subramanian Sam Guhan, Karl K. Ng, Derek L. Tickner, Marcus Douglas Ewing, Clifford N. Meltz, Bryan Li, Kees Pouwer
  • Patent number: 6740757
    Abstract: This invention relates to the enantiomers of 6-[(4-chloro-phenyl)-hydroxy-(3-methyl-3H-imidazol-4-yl)-methyl]-4-[3-(3-hydroxy-3-methyl-but-1-ynyl)-phenyl]-1-methyl-1H-quinolin-2-one, prodrugs thereof, and pharmaceutically acceptable salts and solvates of said compounds and said prodrugs, that are useful in the treatment of hyperproliferative diseases, such as cancers, in mammals. The invention also relates to processes for the production of enantiomerically pure or optically enriched (+)- or (−)-6-[(4-chloro-phenyl)-hydroxy-(3-methyl-3H-imidazol-4-yl)-methyl]-4-[3-(3-hydroxy-3-methyl-but-1-ynyl)-phenyl]-1-methyl-1H-quinolin-2-one enantiomers from a mixture containing two enantiomers using continuous chromatography.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: May 25, 2004
    Assignee: Pfizer Inc
    Inventors: R. Mark Guinn, Subramanian Sam Guhan, Karl K Ng, Derek L. Tickner, Marcus Douglas Ewing, Clifford N. Meltz, Bryan Li, Kees Pouwer
  • Patent number: 6639103
    Abstract: The invention relates to 1,3-disubstituted-3-oxopropane-1-sulfonic acids and sulfonates and enantiomerically inriched forms thereof. The invention further relates to the use of these enantiomerically inriched compounds to resolve mixtures of enantiomers, in particular mixtures of enantiomers of amino-functionalized compounds.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: October 28, 2003
    Assignee: DSM N.V.
    Inventors: Hans Wijnberg, Kees Pouwer, Jose Nieuwenhuijzen, Ton Rene Vries
  • Publication number: 20030114487
    Abstract: This invention relates to the enantiomers of 6-[(4-chloro-phenyl)-hydroxy-(3-methyl-3H-imidazol-4-y)-methyl]-4-[3-(3-hydroxy-3-methyl-but-1-ynyl) -phenyl]-1-methyl-1H-quinolin-2-one, prodrugs thereof, and pharmaceutically acceptable salts and solvates of said compounds and said prodrugs, that are useful in the treatment of hyperproliferative diseases, such as cancers, in mammals. The invention also relates to processes for the production of enantiomerically pure or optically enriched (+)- or (−)-6-[(4-chloro-phenyl)-hydroxy-(3-methyl-3H-imidazol-4-yl)-methyl]-4-[3-(3-hydroxy-3-methyl-but-1-ynyl )-phenyl]-1 -methyl-1H-quinol in-2-one enantiomers from a mixture containing two enantiomers using continuous chromatography.
    Type: Application
    Filed: August 27, 2002
    Publication date: June 19, 2003
    Applicant: Pfizer Inc.
    Inventors: R. Mark Guinn, Subramanian Sam Guhan, Karl K. Ng, Derek L. Tickner, Marcus Douglas Ewing, Clifford N. Meltz, Bryan Li, Kees Pouwer
  • Publication number: 20030009042
    Abstract: The present invention provides a method for preparing a novel class of vitamin D compounds in which the C-25 or equivalent position has a double bond. In addition, the side chain is optionally extended by one or two methylene or methyne groups. The compounds prepared by the method of the present invention are of value as prodrugs for active 1&agr;, 24-dihydroxylated vitamin D compounds.
    Type: Application
    Filed: August 26, 2002
    Publication date: January 9, 2003
    Applicant: Bone Care International, Inc.
    Inventors: Hans Wynberg, Ton Vries, Kees Pouwer
  • Patent number: 6441207
    Abstract: The present invention provides a method for preparing a novel class of vitamin D compounds in which the C-25 or equivalent position has a double bond. In addition, the side chain is optionally extended by one or two methylene or methyne groups. The compounds prepared by the method of the present invention are of value as prodrugs for active 1&agr;, 24-dihydroxylated vitamin D compounds.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: August 27, 2002
    Assignee: Bone Care International, Inc.
    Inventors: Hans Wynberg, Ton Vries, Kees Pouwer