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    • 2. 发明申请
    • NEAR INFRARED CHEMILUMINESCENT ACRIDINIUM COMPOUNDS AND USES THEREOF
    • 近红外化学发光吖啶化合物及其用途
    • WO0009487A9
    • 2000-06-22
    • PCT/US9918076
    • 1999-08-10
    • BAYER AGNATRAJAN ANANDJIANG QINGPINGSHARPE DAVIDLAW SAY JONG
    • NATRAJAN ANANDJIANG QINGPINGSHARPE DAVIDLAW SAY-JONG
    • C07D219/04C07D401/12C07K14/765C07K16/26C09K3/00C09K11/07C12N15/09C12Q1/68G01N21/76G01N33/532G01N33/58G01N33/533
    • G01N33/582C07D219/04Y10S436/80Y10S436/815Y10S436/817Y10S530/812Y10T436/13
    • Our results thus identify two sets of necessary and sufficient criteria for observing long-wavelength emission from acridinium compounds: Set A: (a) the creation of an extended conjugation system by the attachment of appropriate functional groups on the acridinium nucleus (electronic requirement). (b) Coplanarity of the attached functional group and the acridone moiety during light emission (geometry requirement). (c) Said functional group must consist of at least one aromatic ring and one electron-donating atom or group with an extra pair of electrons which can readily delocalize into the extended pi system to which the heteroatom is directly attached or built into, and establish stable extended resonance with the electron-withdrawing carbonyl moiety of the light emitting acridone. Such electron-donating atom or group that exists in the form of an anion has particularly strong effect to further the bathochromic shift of the emission wavelength. Set B: (a) A direct attachment at one or more of positions C-2, C-4, C-5, or C-7 of the acridinium nucleus, of electron-donating atoms or groups having extra pair(s) of electrons. The electron-donating entities can be the same or different if more than one electron-donating entity is used. Such electron-donating atom or group that exists in the form of an anion has particularly strong effect to further the bathochromic shift of the emission wavelenth. For molecules for which the above criteria are met such as LEAE, 3-HS-DMAE, and 2-hydroxy-DMAE long wavelength-emission exceeding 500 nm and reaching into NIR region is expected and observed. Preferably, the utility of an NIR-AC of comparable quantum yield as the conventional acridinium compounds goes hand-in-hand with the employment of a luminescence detector of good to excellent detection efficiency. To achieve efficient NIR signal detection and facilitate the performing of diagnostic assays, a further objective of the present invention is the advance of a concept and the realization of substituting a state-of-the-art charge-coupled device (CCD) detector for the red-insensitive photomultiplier tube (PMT) in a conventional fully or semi-automatic analyzer such as MLA-II of Chiron Diagnostics, Walpole, MA.
    • 因此,我们的结果确定了观察吖啶鎓化合物长波长发射的两套必要和充分的标准:A组:(a)通过在吖啶鎓核上附加适当的官能团(电子要求)创建扩展的缀合系统。 (b)发光期间附着的官能团和吖啶酮部分的共面性(几何要求)。 (c)所述官能团必须由至少一个芳环和一个供电子原子或基团组成,所述原子或基团具有额外的一对电子,所述电子可以容易地离域到扩展的pI系统中,所述杂原子直接连接或构建到其中, 与发光吖啶酮的吸电子羰基部分稳定的扩展共振。 这种以阴离子形式存在的供电子原子或基团对于进一步发射波长的红移是特别有效的。 组B:(a)在吖啶鎓核的C-2,C-4,C-5或C-7位置的一个或多个位置上直接连接电子给体原子或具有额外的一对或多对 电子。 如果使用多于一个供电子实体,则供电子实体可以相同或不同。 这种以阴离子形式存在的供电子原子或基团对于进一步发射波长的红移是特别有效的。 对于满足上述标准的分子如LEAE,期望并观察到3-HS-DMAE和超过500nm并且到达NIR区域的2-羟基-DMAE长波长发射。 优选地,与传统的吖啶鎓化合物相比,具有可比量子产率的NIR-AC的效用与使用具有良好到极好的检测效率的发光检测器结合在一起。 为了实现有效的NIR信号检测并促进诊断测定的执行,本发明的另一个目的是提出一种概念以及用现有技术的电荷耦合器件(CCD)检测器代替 在传统的全自动或半自动分析仪如马萨诸塞州Walpole的Chiron Diagnostics的MLA-II中使用红色不敏感的光电倍增管(PMT)。