This invention discloses a radioactive triazolidinedimethylpyrimidine derivative, its preparation method, and its applications. The derivative has the structure shown in Formula I. Compared with the prior art, this invention provides a class of high-affinity
adenosine A derivatives. 2A Radioactive triazolidinedimethyl derivatives of the
receptor. This class of compounds belongs to the diagnostic category A. 2A Novel compounds for
receptor-related diseases, and derivatives thereof prepared to target A 2A Imaging of the
receptor, compared with previously reported targeting of A 2A Compared to receptor-specific radiopharmaceuticals, the radioactive compounds of this invention can rapidly reach equilibrium in the brain, thereby facilitating A. 2A Rapid quantification and
qualitative analysis of receptors. The compounds of this invention can be applied not only to A... 2A The diagnosis of receptor-related brain diseases can also be applied to A 2A Diagnosis and
efficacy evaluation of tumors with high
receptor expression.