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    • 3. 发明申请
    • PROCESS FOR PRODUCING 1, 4, 7, 10-TETRAAZACYCLODODECANE-1, 4, 7, 10-TETRAACETIC ACID AND COMPLEXES THEREOF
    • 1,4,7,10-TETRAAZACYCLODODECANE-1,4,7,10-十四酸及其复合物的制备方法
    • WO2014114664A1
    • 2014-07-31
    • PCT/EP2014/051217
    • 2014-01-22
    • AGFA HEALTHCARE
    • BUFFEL, DiederikGANORKAR, RakeshBURT, JenniferBOI, Xavier
    • C07D457/04
    • C07D257/02A61K49/108C07D457/04
    • The present invention relates to a process for producing 1, 4, 7, 10-tetraazacyclododecane-1, 4, 7, 10-tetraacetic acid (DOTA) including salts and hydrates thereof of general formula (I) from the respective cyclen. Said process further involves the use of cationic- and anionic exchange resins and solvent treatments to remove the organic and inorganic contaminants. Any cations present in the raw DOTA or other contaminants resulting from the reaction of cyclen are largely reduced in early stages of the process allowing to obtain good yields of DOTA in a purified grade and in an easier and reliable way. The present invention is thus useful for the production of DOTA, of macrocyclic compounds comprising metal ions complexes thereof and of compositions comprising said macrocyclic compounds that can be used as contrast agents for magnetic resonance imaging.
    • 本发明涉及从相应的环烯烃生产包括其通式(I)的盐和其水合物的4,4,7,10-四氮杂环十二烷-1,4,7,10-四乙酸(DOTA)的方法。 所述方法还涉及使用阳离子和阴离子交换树脂和溶剂处理来除去有机和无机污染物。 存在于原始DOTA中的任何阳离子或由环化物反应产生的其它污染物在该方法的早期阶段大大降低,从而在纯化级别中以更容易和可靠的方式获得良好的DOTA产率。 因此,本发明可用于生产DOTA,其包含其金属离子络合物的大环化合物和包含可用作磁共振成像造影剂的所述大环化合物的组合物。
    • 10. 发明申请
    • PROCESS FOR PREPARING A PHARMACEUTICAL FORMULATION OF CONTRAST AGENTS
    • 制备造影剂制剂的方法
    • WO2009103744A2
    • 2009-08-27
    • PCT/EP2009/051937
    • 2009-02-18
    • GUERBETMEYER, DominiqueCOROT, ClairePORT, MarcBARBOTIN, VincentBONNEMAIN, Bruno
    • MEYER, DominiqueCOROT, ClairePORT, MarcBARBOTIN, VincentBONNEMAIN, Bruno
    • A61K49/10
    • A61K49/108A61K9/0019A61K31/28A61K45/06A61K47/18A61K49/106G01N33/15
    • The invention relates to a process for preparing a liquid pharmaceutical formulation containing a complex of macrocyclic chelate with a lanthanide and a mol/mol amount offree macrocyclic chelate of between 0.002% and 0.4%, advantageously between 0.02% and 0.3% and very advantageously between 0.025% and 0.25%, the macrocyclic chelate advantageously being chosen from DOTA, NOTA, DOTAGA, DO3A, BT-DO3A, HP-DO3A and PCTA, and is preferably DOTA, the said process comprising the following successive steps: b) preparation of a liquid pharmaceutical composition containing, firstly, the complex of macrocyclic chelate with a lanthanide, and, secondly, free macrocyclic chelate and/or free lanthanide; c) measurement in the pharmaceutical formulation obtained in step b) of the concentration of free macrocyclic chelate C chl and/or of free lanthanide C lanl; d)adjustmentof C chl and/or of C lanl so as to obtain C chl = C tchl and C lanl = 0, wherein C t chl is the target concentration of free macrocyclic chelate in the final liquid pharmaceuticalformulation.
    • 本发明涉及一种制备含有大环螯合物与镧系元素和摩尔/摩尔量的自由基大环螯合物的液体药物制剂的方法,所述螯合物的量为0.002%至0.4%,有利地为0.02% 和0.3%,非常有利地在0.025%和0.25%之间,所述大环螯合物有利地选自DOTA,NOTA,DOTAGA,DO3A,BT-DO3A,HP-DO3A和PCTA,并且优选DOTA,所述方法包括以下连续 步骤:b)制备液体药物组合物,其首先包含大环螯合物与镧系元素的复合物,其次是游离的大环螯合物和/或游离镧​​系元素; c)在步骤b)中获得的药物制剂中测量游离大环螯合物C chl和/或游离镧​​系元素C lanl的浓度; d)调节C chl和/或C lanl以获得C chl = C tchl和C lanl = 0,其中C t chl是最终液体药物制剂中游离大环螯合物的目标浓度。