Patents by Inventor Johannes Platzek

Johannes Platzek 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).

  • Patent number: 10759758
    Abstract: The present invention relates to crystalline forms of N-{6-(2-Hydroxypropan-2-yl)-2-[2-(methylsulphonyl)ethyl]-2H-indazol-5-yl}-6-(trifluoromethyl)pyridine-2-carboxamide, to processes for their preparation, to pharmaceutical compositions comprising them and to their use in the control of disorders.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: September 1, 2020
    Assignee: Bayer Pharma Aktiengesellschaft
    Inventors: Tobias Thaler, Johannes Platzek, Nicolas Guimond
  • Patent number: 10722601
    Abstract: A compound having the formula of tetragadolinium [4,10-bis(carboxylatomethyl)-7-{-3,6,12,15-tetraoxo-16-[4,7,10-tris(carboxylatomethyl)-1,4,7,10-tetraazacyclododecan-1-yl]-9,9-bis({[{2-[4,7,10-tris(carboxylatomethyl)-1,4,7,10-tetraazacyclododecan-1-yl]propanoyl} amino)acetyl]amino}methyl)-4,7,11,14-tetraazaheptadecan-2-yl}-1,4,7,10-tetraazacyclo dodecan-1-yl]acetate wherein the stereochemistry at the chiral carbon of the four alanine substituents is selected from the group consisting of RRRR, SSSS, RSSS, RRSS, and RRRS stereoisomers, and racemic and diastereomeric mixtures of any thereof, or a tautomer, a hydrate, a solvate, or a salt thereof, or a mixture of same is described. The compounds may be used as an MRI contrast imaging agent.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: July 28, 2020
    Assignee: BAYER PHARMA AKTIENGESELLSCHAFT
    Inventors: Markus Berger, Jessica Lohrke, Christoph-Stephan Hilger, Gregor Jost, Thomas Frenzel, Detlev Suelzle, Johannes Platzek, Olaf Panknin, Hubertus Pietsch
  • Patent number: 10633365
    Abstract: The present invention relates to a novel method of preparing a 2-substituted indazole of formula (I) to novel intermediate compounds, and to the use of intermediate compounds for the preparation of said 2-substituted indazole.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: April 28, 2020
    Assignee: Bayer Pharma Aktiengesellschaft
    Inventors: Tobias Thaler, Johannes Platzek, Nicolas Guimond
  • Patent number: 10501437
    Abstract: The present invention relates to crystalline forms of N-[2-(3-Hydroxy-3-methylbutyl)-6-(2-hydroxypropan-2-yl)-2H-indazol-5-yl]-6-(trifluoromethyl)pyridine-2-carboxamide, to processes for their preparation, to pharmaceutical compositions comprising them and to their use in the control of disorders.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: December 10, 2019
    Assignee: Bayer Pharma Aktiengesellschaft
    Inventors: Tobias Thaler, Johannes Platzek, Nicolas Guimond
  • Patent number: 10501417
    Abstract: The present invention relates to a novel method of preparing a 2-substituted indazole of structure: (I), to intermediate compounds, and to the use of intermediate compounds for the preparation of said 2-substituted indazole.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: December 10, 2019
    Assignee: Bayer Pharma Aktiengesellschaft
    Inventors: Tobias Thaler, Johannes Platzek, Nicolas Guimond
  • Patent number: 10435417
    Abstract: A process for producing high-purity gadobutrol in a purity (according to HPLC) of more than 99.7 or 99.8 or 99.9% and the use for preparing a pharmaceutical formulation for parenteral administration is described. The process is carried out using specifically controlled crystallization conditions.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: October 8, 2019
    Assignee: BAYER INTELLECTUAL PROPERTY GMBH
    Inventors: Johannes Platzek, Wilhelm Trentmann
  • Patent number: 10399977
    Abstract: The present invention relates to a novel and improved process for preparing (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide of the formula (I) and also the preparation and use of the crystalline polymorph I of (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide of the formula (I).
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: September 3, 2019
    Assignee: Bayer Pharma Aktiengesellschaft
    Inventors: Johannes Platzek, Gunnar Garke, Alfons Grunenberg
  • Patent number: 10392384
    Abstract: The present invention relates to a novel process for preparing (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide of the formula (I) and recovering (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide of the formula (I) proceeding from (4R)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide of the formula ent-(I)
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: August 27, 2019
    Assignee: BAYER PHARMA AKTIENGESELLSCHAFT
    Inventors: Johannes Platzek, Kathrin Gottfried, Jens Assmann, Giulio Lolli
  • Publication number: 20190210979
    Abstract: A method is described for production of a high purity compound of the formula (I) in crystalline form of the modification A. In this, starting from high purity gadobutrol, the gadolinium is removed by decomplexation with oxalic acid, and then with a calcium salt the calcium complex is produced in high purity. During the crystallization, a water equivalent of 9-11 weight % is set. The crystalline form of the modification A of the compound of the formula (I) is used in the production of Gadovist.
    Type: Application
    Filed: September 11, 2017
    Publication date: July 11, 2019
    Inventors: Johannes PLATZEK, Wilhelm TRENTMANN
  • Patent number: 10336749
    Abstract: The present invention relates to a novel and improved process for preparing (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide of the formula (I)
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: July 2, 2019
    Assignee: BAYER PHARMA AKTIENGESELLSCHAFT
    Inventor: Johannes Platzek
  • Publication number: 20190152944
    Abstract: The present invention relates to crystalline forms of N-[2-(3-Hydroxy-3-methylbutyl)-6-(2-hydroxypropan-2-yl)-2H-indazol-5-yl]-6-(trifluoromethyl)pyridine-2-carboxamide, to processes for their preparation, to pharmaceutical compositions comprising them and to their use in the control of disorders.
    Type: Application
    Filed: April 25, 2017
    Publication date: May 23, 2019
    Applicant: Bayer Pharma Aktiengesellschaft
    Inventors: Tobias THALER, Johannes PLATZEK, Nicolas GUIMOND
  • Publication number: 20190144420
    Abstract: The present invention relates to a novel method of preparing a 2-substituted indazole of formula (I) to novel intermediate compounds, and to the use of intermediate compounds for the preparation of said 2-substituted indazole.
    Type: Application
    Filed: April 25, 2017
    Publication date: May 16, 2019
    Applicant: Bayer Pharma Aktiengesellschaft
    Inventors: Tobias THALER, Johannes PLATZEK, Nicolas GUIMOND
  • Publication number: 20190127369
    Abstract: The present invention relates to a novel and improved process for preparing (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide of the formula (I) and also the preparation and use of the crystalline polymorph I of (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide of the formula (I).
    Type: Application
    Filed: August 27, 2018
    Publication date: May 2, 2019
    Inventors: Johannes Platzek, Gunnar Garke, Alfons Grunenberg
  • Publication number: 20190112270
    Abstract: The present invention relates to crystalline forms of N-{6-(2-Hydroxypropan-2-yl)-2-[2-(methylsulphonyl)ethyl]-2H-indazol-5-yl}-6-(trifluoromethyl)pyridine-2-carboxamide, to processes for their preparation, to pharmaceutical compositions comprising them and to their use in the control of disorders.
    Type: Application
    Filed: April 25, 2017
    Publication date: April 18, 2019
    Applicant: Bayer Pharma Aktiengesellschaft
    Inventors: Tobias THALER, Johannes PLATZEK, Nicolas GUIMOND
  • Publication number: 20190106407
    Abstract: The present invention relates to a novel method of preparing a 2-substituted indazole of structure: (I), to intermediate compounds, and to the use of intermediate compounds for the preparation of said 2-substituted indazole.
    Type: Application
    Filed: April 25, 2017
    Publication date: April 11, 2019
    Applicant: Bayer Pharma Aktiengesellschaft
    Inventors: Tobias THALER, Johannes PLATZEK, Nicolas GUIMOND
  • Publication number: 20190083659
    Abstract: A compound having the formula of tetragadolinium [4,10-bis(carboxylatomethyl)-7-{-3,6,12,15-tetraoxo-16-[4,7,10-tris(carboxylatomethyl)-1,4,7,10-tetraazacyclododecan-1-yl]-9,9-bis({[{2-[4,7,10-tris(carboxylatomethyl)-1,4,7,10-tetraazacyclododecan-1-yl]propanoyl} amino)acetyl]amino}methyl)-4,7,11,14-tetraazaheptadecan-2-yl}-1,4,7,10-tetraazacyclo dodecan-1-yl]acetate wherein the stereochemistry at the chiral carbon of the four alanine substituents is selected from the group consisting of RRRR, SSSS, RSSS, RRSS, and RRRS stereoisomers, and racemic and diastereomeric mixtures of any thereof, or a tautomer, a hydrate, a solvate, or a salt thereof, or a mixture of same is described. The compounds may be used as an MRI contrast imaging agent.
    Type: Application
    Filed: November 15, 2018
    Publication date: March 21, 2019
    Inventors: Markus Berger, Jessica Lohrke, Christoph-Stephan Hilger, Gregor Jost, Thomas Frenzel, Detlev Suelzle, Johannes Platzek, Olaf Panknin, Hubertus Pietsch
  • Patent number: 10137209
    Abstract: The present invention relates to a new class of high relaxivity extracellular gadolinium chelate complexes, to methods of preparing said compounds, and to the use of said compounds as MRI contrast agents.
    Type: Grant
    Filed: May 30, 2016
    Date of Patent: November 27, 2018
    Assignee: BAYER PHARMA AKTIENGESELLSCHAFT
    Inventors: Markus Berger, Jessica Lohrke, Christoph-Stephan Hilger, Gregor Jost, Thomas Frenzel, Detlev Suelzle, Johannes Platzek, Olaf Panknin, Hubertus Pietsch
  • Patent number: 10072027
    Abstract: What is described is a process for producing high-purity gadobutrol in a purity (according to HPLC) of more than 99.7 or 99.8 or 99.9% and the use for preparing a pharmaceutical formulation for parenteral administration. The process is carried out using specifically controlled crystallization conditions. The more recent developments in the field of the gadolinium-containing MR contrast agents (EP 0448191 B1, CA Patent 1341176, EP 0643705 B1, EP 0986548 B1, EP 0596586 B1) include the MRT contrast agent gadobutrol (Gadovist® 1.0) which has been approved for a relatively long time in Europe and more recently also in the USA under the name Gadavist®.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: September 11, 2018
    Assignee: BAYER INTELLECTUAL PROPERTY GMBH
    Inventors: Johannes Platzek, Wilhelm Trentmann
  • Publication number: 20180244668
    Abstract: The present invention relates to a novel process for preparing (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide of the formula (I) and recovering (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide of the formula (I) proceeding from (4R)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide of the formula ent-(I)
    Type: Application
    Filed: August 18, 2016
    Publication date: August 30, 2018
    Applicant: Bayer Pharma Aktiengesellschaft
    Inventors: Johannes Platzek, Kathrin Gottfried, Jens Assmann, Giulio Lolli
  • Publication number: 20180244670
    Abstract: The present invention relates to a novel and improved process for preparing (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide of the formula (I)
    Type: Application
    Filed: August 18, 2016
    Publication date: August 30, 2018
    Applicant: BAYER PHARMA AKTIENGESELLSCHAFT
    Inventor: Johannes PLATZEK