Publication number: 20230113481
Abstract: An aqueous pharmaceutical composition including 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-tetraazacyclododecan-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 2, 2022
Publication date:
April 13, 2023
Inventors:
MARKUS BERGER, JESSICA LOHRKE, CHRISTOPH-STEPHAN HILGER, GREGOR JOST, THOMAS FRENZEL, DETLEV SUELZLE, JOHANNES PLATZEK, OLAF PANKNIN, HUBERTUS PIETSCH
Patent number: 11491245
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:
July 27, 2020
Date of Patent:
November 8, 2022
Assignee:
BAYER PHARMA AKTIENGESELLSCHAFT
Inventors:
Markus Berger, Jessica Lohrke, Christoph-Stephan Hilger, Gregor Jost, Thomas Frenzel, Detlev Suelzle, Johannes Platzek, Olaf Panknin, Hubertus Pietsch
Publication number: 20200353104
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:
July 27, 2020
Publication date:
November 12, 2020
Inventors:
MARKUS BERGER, JESSICA LOHRKE, CHRISTOPH-STEPHAN HILGER, GREGOR JOST, THOMAS FRENZEL, DETLEV SUELZLE, JOHANNES PLATZEK, OLAF PANKNIN, HUBERTUS PIETSCH
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
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