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    • 6. 发明申请
    • Process
    • 处理
    • US20050152840A1
    • 2005-07-14
    • US11002864
    • 2004-12-02
    • Oskar AxelssonCharlotte OlofssonAxel MorgenstjerneGeorg HanssonHaukur JohannessonJan-Henrik Ardenkjaer-Larsen
    • Oskar AxelssonCharlotte OlofssonAxel MorgenstjerneGeorg HanssonHaukur JohannessonJan-Henrik Ardenkjaer-Larsen
    • A61K49/00A61K49/18C07C67/303C07C69/675G01R33/28G01R33/483
    • A61K49/1815
    • The present invention provides a process for the preparation of an MR contrast agent, said process comprising: i) obtaining a solution in a solvent of a hydrogenatable, unsaturated substrate compound and a catalyst for the hydrogenation of said substrate compound; ii) introducing said solution in droplet form into a chamber containing hydrogen gas (H2) enriched in para-hydrogen (p-1H2) and/or ortho-deuterium (o-2H2) whereby to hydrogenate said substrate to form a hydrogenated imaging agent; iii) optionally subjecting said hydrogenated imaging agent to a magnetic field having a field strength below earth's ambient field strength; iv) optionally dissolving said imaging agent in an aqueous medium; v) optionally separating said catalyst from the solution of said imaging agent in said aqueous medium; vi) optionally separating said solvent from the solution of said imaging agent in said aqueous medium; and vii) optionally freezing the solution of said imaging agent in said aqueous medium.
    • 本发明提供了一种制备MR造影剂的方法,所述方法包括:i)获得在可氢化不饱和底物化合物的溶剂中的溶液和用于所述底物化合物氢化的催化剂; ii)将所述液滴形式的溶液引入含有富氢对二氢的氢气(H 2 S 2 H 2)的室中, )和/或邻 - 氘(o-2 H 2 H 2),由此氢化所述底物以形成氢化显像剂; iii)任选地使所述氢化成像剂经受场强低于地球环境场强的磁场; iv)任选地将所述成像剂溶解在水性介质中; v)任选地将所述催化剂与所述显影剂的溶液在所述水性介质中分离; vi)任选地将所述溶剂与所述显影剂的溶液在所述水性介质中分离; 和vii)任选地将所述成像剂的溶液冷冻在所述水性介质中。
    • 7. 发明授权
    • Magnetic resonance imaging
    • 磁共振成像
    • US06574496B1
    • 2003-06-03
    • US09572949
    • 2000-05-18
    • Klaes GolmanOskar AxelssonHaukur Johannesson
    • Klaes GolmanOskar AxelssonHaukur Johannesson
    • A61B505
    • G01R33/5601G01R33/56308
    • A method of magnetic resonance investigation of a sample by (i) reacting ortho-deuterium enriched hydrogen with a hydrogenatable MR imaging agent precursor to produce a hydrogenated (i.e. deuterated) MR imaging agent; (ii) optionally, subjecting the hydrogenated MR imaging agent to a low magnetic field;(iii) administering the hydrogenated MR imaging agent to the sample; (iv) exposing the sample to radiation of a frequency selected to excite nuclear spin transitions of selected non-zero nuclear spin nuclei in said hydrogenated MR imaging agent; (v) detecting magnetic resonance signals of the selected non-zero nuclear spin nuclei from the sample; and (vi) optionally, generating an image or biological functional data or dynamic flow data from the detected signals.
    • 通过(i)使富氘氢与可氢化MR显像剂前体反应以产生氢化(即氘代)MR成像剂,对样品进行磁共振研究的方法; (ii)任选地,使氢化MR成像剂经受低磁场;(iii)向该样品施用氢化MR显像剂; (iv)将所述样品暴露于所选择的用于激发所述氢化MR成像剂中选定的非零核自旋核的核自旋跃迁的频率的辐射; (v)从所述样品检测所选择的非零核自旋核的磁共振信号; 和(vi)可选地,从检测到的信号生成图像或生物功能数据或动态流量数据。
    • 8. 发明授权
    • Process for preparation of MR contrast agents
    • 制备MR造影剂的方法
    • US07459144B2
    • 2008-12-02
    • US11002864
    • 2004-12-02
    • Oskar AxelssonCharlotte OlofssonAxel MorgenstjerneGeorg HanssonHaukur JohannessonJan-Henrik Ardenkjaer-Larsen
    • Oskar AxelssonCharlotte OlofssonAxel MorgenstjerneGeorg HanssonHaukur JohannessonJan-Henrik Ardenkjaer-Larsen
    • A61B5/055B01J10/00
    • A61K49/1815
    • The present invention provides a process for the preparation of an MR contrast agent, said process comprising: i) obtaining a solution in a solvent of a hydrogenatable, unsaturated substrate compound and a catalyst for the hydrogenation of said substrate compound; ii) introducing said solution in droplet form into a chamber containing hydrogen gas (H2) enriched in para-hydrogen (p-1H2) and/or ortho-deuterium (o-2H2) whereby to hydrogenate said substrate to form a hydrogenated imaging agent; iii) optionally subjecting said hydrogenated imaging agent to a magnetic field having a field strength below earth's ambient field strength; iv) optionally dissolving said imaging agent in an aqueous medium; v) optionally separating said catalyst from the solution of said imaging agent in said aqueous medium; vi) optionally separating said solvent from the solution of said imaging agent in said aqueous medium; and vii) optionally freezing the solution of said imaging agent in said aqueous medium.
    • 本发明提供了一种制备MR造影剂的方法,所述方法包括:i)获得在可氢化不饱和底物化合物的溶剂中的溶液和用于所述底物化合物氢化的催化剂; ii)将所述液滴形式的溶液引入含有富氢对二氢(p-1H 2)和/或邻 - 氘(o-2H 2)的氢气(H 2)的室中,从而氢化所述底物以形成氢化显像剂; iii)任选地使所述氢化成像剂经受场强低于地球环境场强的磁场; iv)任选地将所述成像剂溶解在水性介质中; v)任选地将所述催化剂与所述显影剂的溶液在所述水性介质中分离; vi)任选地将所述溶剂与所述显影剂的溶液在所述水性介质中分离; 和vii)任选地将所述成像剂的溶液冷冻在所述水性介质中。