申请人:BAYER PHARMA AKTIENGESELLSCHAFT
公开号:US10722601B2
公开(公告)日:2020-07-28
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.
一种化合物,其式为四钆[4,10-双(羧基甲基)-7--3,6,12,15-四氧代-16-[4,7,10-三(羧基甲基)-1,4,7,10-四氮杂环十二烷-1-基]-9、9-双([2-[4,7,10-三(羧基甲基)-1,4,7,10-四氮杂环十二烷-1-基]丙酰基}氨基)乙酰基]氨基}甲基)-4,7,11,14-四氮杂十七烷-2-基}-1,4,7、10-四氮杂环十二烷-1-基]乙酸酯,其中四个丙氨酸取代基的手性碳上的立体化学结构选自 RRRR、SSSS、RSSS、RRSS 和 RRRS 立体异构体组成的组,以及它们的外消旋和非对映混合物,或它们的同系物、水合物、溶液或盐,或它们的混合物。这些化合物可用作核磁共振成像造影剂。