摘要:
The present invention relates to a radiotracer precursor for imaging of hypoxic tissues, a radiotracer and a method for preparing the same. The radiotracer precursor, BANI, includes a nitroimidazole functional group with a feature of retention in hypoxic tissues and a bifunctional ligand able to complex with radioisotopes. Thus BANI can be used to produce radiotracers retained in hypoxic tissues and the radiotracers are applied to medical imaging of malignant tumor with hypoxic layer.
摘要:
In a benzodiazepine derivative and a method of producing the derivative, isatoic anhydride or 5-chloroisatoic anhydride is reacted with amino acid ester hydrochloride for conducting a simple cyclization to obtain a produce with a low percentage of by-product directly without requiring the complicated separation and purification processes of column chromatography, and a chlorine-containing structure of the structure can improve the lipo-solubility and chlorine ion permeability and allow a functional group of a radioisotope to be modified to maximize the effects of the pharmacological properties such as the sedative, anticonvulsant and anti-spasmodic effects on the central nervous system or the benzodiazepine derivative can be used as a contrast agent of the system with excellent effects on applications.
摘要:
A radiotracer precursor for imaging of hypoxic tissues, a radiotracer and a method for preparing the same are revealed. The radiotracer precursor, DANI, includes a nitroimidazole functional group with a feature of retention in hypoxic tissues and a bifunctional ligand able to complex with radioisotopes. Thus DANI can be used to produce radiotracers stayed in hypoxic tissues and the radiotracers are applied to medical imaging of malignant tumor with hypoxic layer.