Method of dynamic nuclear polarisation (DNP)
    13.
    发明授权
    Method of dynamic nuclear polarisation (DNP) 有权
    动态核极化方法(DNP)

    公开(公告)号:US08951502B2

    公开(公告)日:2015-02-10

    申请号:US12095169

    申请日:2006-12-01

    摘要: The invention relates to a method of dynamic nuclear polarisation (DNP) using a combination of a trityl radical and a paramagnetic metal ion as the polarising agent leading to enhanced levels of polarisation in the sample to be polarised and to compositions and polarising agents for use in the method.

    摘要翻译: 本发明涉及使用三苯甲基和顺磁金属离子的组合作为偏振剂的动态核极化(DNP)的方法,导致待极化的样品中的极化水平增加,以及用于 方法。

    Method of Dynamic Nuclear Polarisation DNP
    14.
    发明申请
    Method of Dynamic Nuclear Polarisation DNP 有权
    动态核极化方法DNP

    公开(公告)号:US20080260649A1

    公开(公告)日:2008-10-23

    申请号:US12095169

    申请日:2006-12-01

    IPC分类号: A61K49/10 A61K49/20

    摘要: The invention relates to a method of dynamic nuclear polarisation (DNP) using a combination of a trityl radical and a paramagnetic metal ion as the polarising agent leading to enhanced levels of polarisation in the sample to be polarised and to compositions and polarising agents for use in the method.

    摘要翻译: 本发明涉及使用三苯甲基和顺磁金属离子的组合作为偏振剂的动态核极化(DNP)的方法,导致待极化的样品中的极化水平增加,以及用于 方法。

    Free radicals
    17.
    发明授权
    Free radicals 失效
    自由基

    公开(公告)号:US5530140A

    公开(公告)日:1996-06-25

    申请号:US220522

    申请日:1994-03-31

    摘要: The invention provides novel persistent free radicals useful in Overhauser MRI being triarylmethyl radicals having as at least one aryl group a group of formula ##STR1## (wherein each X which may be the same or different is an oxygen or sulphur atom or a group CO or S(O).sub.n, (where n is 1 to 3) with the proviso that at least one group X is a sulphur atom or a S(O).sub.n group; R.sup.1 is a hydrogen atom or group of formula --M, --XM, --X--Ar.sup.2, or --Ar.sup.2 where M is a water solubilizing group, and Ar.sup.2 represents a 5-10 membered aromatic ring optionally substituted by a water solubilizing group M; and each of the groups R.sup.7, which may be the same or different, is a hydrogen atom, or a hydrocarbon group or a water solubilizing group M, or two groups R.sup.7 together with the atom to which they are bound represent a carbonyl group or a 5 to 8 membered cycloalkylidene, mono- or di-oxacycloalkylidene, mono- or di-azacycloalkylidene or mono- or di-thiacycloalkylidene group optionally with the ring attachment carbon replaced by a silicon atom, and R.sup.7 where it is other than hydrogen, is optionally substituted by a hydroxyl group, an optionally alkoxylated, optionally hydroxylated acyloxy or alkyl group or a water solubilizing group M)). The novel radicals have good stability, long relaxation times and good relaxivity.

    摘要翻译: 本发明提供了在Overhauser MRI中有用的新型持久性自由基,其具有作为至少一个芳基的基团为具有下式的基团的三芳基甲基(其中可以相同或不同的X是氧或硫原子或 基团CO或S(O)n,(其中n为1至3),条件是至少一个基团X为硫原子或S(O)n基团; R 1为氢原子或式-M ,-XM,-X-Ar2或-Ar2,其中M是水溶性基团,Ar2表示任选被水增溶基团M取代的5-10元芳香环;并且各基团R7可以是 相同或不同的是氢原子,或烃基或水溶性基团M,或两个R 7与它们所连接的原子一起代表羰基或5-8元环亚烷基,单 - 或二 - 单环或二氮杂环亚烷基或任选具有环连接c的单 - 或二 - 芳烃被硅原子取代,并且其中不是氢的R 7任选被羟基取代,任选烷氧基化,任选羟基化的酰氧基或烷基或水溶性基团M))。 新型自由基具有良好的稳定性,较长的松弛时间和良好的松弛性。