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    • 18. 发明授权
    • Benzyloxy derivatives of DTPA for MRI
    • 用于MRI的DTPA的苄氧基衍生物
    • US6099824A
    • 2000-08-08
    • US904646
    • 1997-08-01
    • Pier Lucio AnelliAndrea BeltramiFulvio UggeriMario Virtuani
    • Pier Lucio AnelliAndrea BeltramiFulvio UggeriMario Virtuani
    • A61K49/06C07C229/16C07C229/22C07C229/76A61B5/055
    • C07C229/76A61K49/06C07C229/16C07C229/22Y10S514/836
    • Compounds which can chelate paramagnetic bi- and trivalent metal ions, their chelates with said metal ions and their use as contrast agents in magnetic resonance imaging (MRI), the compounds having formula (I) ##STR1## wherein R is a --(CH.sub.2).sub.m --O--R.sub.2 group or hydrogen,R.sub.2 is a (C.sub.6 -C.sub.10) aryl, or an alkyl(C.sub.1 -C.sub.5)-aryl(C.sub.6 -C.sub.10) group, substituted or not by a group L corresponding to a OH group or a OR.sub.3 group, wherein R.sub.3 is a linear or branched (C.sub.1 -C.sub.5) alkyl group; or L is NH.sub.2, halogen, COOH or CONR.sub.4 R.sub.5 wherein R.sub.4 and R.sub.5 are independently hydrogen, or a linear or branched (C.sub.1 -C.sub.5) alkyl which can be substituted by 1-6 hydroxy groups and/or 1-6 alkoxy groups,R.sub.1 can have the same meanings as R, independently from it, except for hydrogen,Z is independently OH or OR.sub.6, or NR.sub.4 R.sub.5 wherein R.sub.4 and R.sub.5 are as previously defined, and R.sub.6 is a (C.sub.1 -C.sub.10) alkyl, linear or branched, which can be substituted by 1-6 hydroxyl and/or alkoxyl groups,m is between 1 and 5.
    • 可以螯合顺磁性双金属和三价金属离子的化合物,它们与所述金属离子的螯合物以及它们在磁共振成像(MRI)中作为造影剂的用途,具有式(I)的化合物其中R是 - (CH 2)m O-R 2 基团或氢,R2是(C6-C10)芳基或(C1-C5) - 芳基(C6-C10)烷基,被对应于OH基团或OR3基团的基团L取代或不被取代,其中R3 是直链或支链(C1-C5)烷基; 或L是NH 2,卤素,COOH或CONR 4 R 5,其中R 4和R 5独立地是氢,或可被1-6个羟基和/或1-6个烷氧基取代的直链或支链(C1-C5)烷基,R1可以 具有与R独立的含义,除氢外,Z独立地为OH或OR 6,或NR 4 R 5,其中R 4和R 5如前所定义,R 6为直链或支链的(C1-C10)烷基,其可以是 被1-6个羟基和/或烷氧基取代,m在1和5之间。
    • 19. 发明授权
    • Process for the preparation of iopamidol and the new intermediates therein
    • 碘帕醇及其中间体的制备方法
    • US07368101B2
    • 2008-05-06
    • US11316559
    • 2005-12-21
    • Pier Lucio AnelliMarino BrocchettaGiovanna LuxEnrico Cappelletti
    • Pier Lucio AnelliMarino BrocchettaGiovanna LuxEnrico Cappelletti
    • A61K49/04C07C233/00C07D407/00
    • C07C231/02C07C237/46
    • A process for the preparation of (S)-N,N′-bis[2-hydroxy-1-(hydroxymethyl)ethyl]-5-[(2-hydroxy-1-oxo-propyl)amino]-2,4,6-triiodo-1,3-benzendicarboxamide (iopamidol) starting from 5-amino-N,N′-bis[2-hydroxy-1-(hydroxymethyl)ethyl]-2,4,6-triiodo-1,3-benzenedicarboxamide (II) which process comprises a) reacting the compound of formula (II) with a suitable protecting agent, to give a compound of formula (III) wherein R is a group of formula A or B wherein R1 is a hydrogen atom, a C1÷C4 straight or branched alkoxy group, R2 is hydrogen, a C1÷C4 straight or branched alkoy group and R3 ?is a C1÷C4 straight or branched alkyl group, a trifuoromethyl or a trichloromethyl group; b) acylating the amino group in position 5 of the intermediate compound of formula (III), by reaction with a (S)-2-(acetyloxy)propanoyl chloride to give a compound of formula (IV) wherein R is as defined above; and c) removing all the acyl groups present in the compound of formula (IV) under basic conditions, with prior cleavage of the cyclic protections of the hydroxy groups in the carboxamido substituents under acidic conditions, when R is a group of formula A carboxamido hydroxy groups under acidic conditions. The invention also refers to the new intermediates of formula (III) and (IV) wherein —R is a group A.
    • 制备(S)-N,N'-双[2-羟基-1-(羟甲基)乙基] -5 - [(2-羟基-1-氧代 - 丙基)氨基] -2,4, 5-氨基-N,N'-双[2-羟基-1-(羟甲基)乙基] -2,4,6-三碘-1,3-苯二甲酰胺的6-三碘-1,3-苯二甲酰胺(碘帕醇) (II)所述方法包括a)使式(II)化合物与合适的保护剂反应,得到其中R为式A或B的基团的式(III)化合物,其中R 1 >是氢原子,C 1或C 4直链或支链烷氧基,R 2是氢,C 1 直线或支链烷基,R 3?是C / C 直链或支链烷基,三氟甲基或三氯甲基; b)通过与(S)-2-(乙酰氧基)丙酰氯反应,酰化式(III)中间体化合物的第5位的氨基,得到其中R如上定义的式(Ⅳ)化合物; 和c)在碱性条件下除去存在于式(Ⅳ)化合物中的所有酰基,在R是式A的基团时,先前在酸性条件下,在甲酰氨基取代基中羟基的环保保护被切割。 在酸性条件下。 本发明还涉及式(III)和(IV)的新中间体,其中-R是基团A.