Provided herein are compounds, preparations and formulations comprising pyrazine derivatives having multiple poly(ethylene glycol) containing substituents. Many of the compounds disclosed herein are excretable by the renal system of a subject or patient and are useful for visualizing the renal system of a subject or patient. Upon excitation by electromagnetic radiation, a number of the compounds disclosed herein exhibit luminescence and are externally detectable when present in the body fluid of a patient or subject. Also provided herein are methods for visualizing the renal system of a subject or patient.
本文提供了包含多个聚
乙二醇取代基的
吡嗪衍
生物的化合物、制剂和配方。本文所披露的许多化合物可被主体或患者的肾系统排泄,并可用于可视化主体或患者的肾系统。在电磁辐射的激发下,本文所披露的一些化合物表现出发光性质,并在患者或主体的体液中存在时可外部检测。本文还提供了可视化主体或患者肾系统的方法。