The present invention relates to pyrazine derivatives such as those represented by Formulas I and II below.
X
1
to X
4
of the compounds of Formulas I and II may be characterized as electron withdrawing groups. In contrast, Y
1
to Y
4
of the compounds of Formulas I and II may be characterized as electron donating groups. Pyrazine derivatives of the present invention may be utilized in assessing renal function. In particular, an effective amount of a pyrazine derivative of the invention may be administered into a body of a patient. The pyrazine derivative that is in the body may be exposed to visible and/or infrared light to cause spectral energy to emanate from the pyrazine derivative. This emanating spectral energy may be detected and utilized to determine renal function of the patient.
本发明涉及
吡嗪衍
生物,例如以下式I和II所代表的衍
生物。式I和II化合物的X1至X4可以被表征为电子吸引基团。相反,式I和II化合物的Y1至Y4可以被表征为电子供给基团。本发明的
吡嗪衍
生物可用于评估肾功能。特别地,本发明的
吡嗪衍
生物的有效量可以被注入患者体内。在体内的
吡嗪衍
生物可以暴露于可见和/或红外光以使光谱能量从
吡嗪衍
生物中发射出来。这个发射的光谱能量可以被检测并用于确定患者的肾功能。