| abstract |
It is an object of the present invention to provide a novel 18F-labeled BPA (4-dihydroxyboryl phenylalanine) process and 18F-labeled BPA precursor. The 18F-labeled BPA can be prepared by modulating and using a compound represented by the following formula;n□nHere, R1 represents a bromo group, an iodo group, a fluoro group, a diazepazine derivative, BX3-, or BX3-M+, X represents a halogen, and M+ represents a monovalent monoatomic cation, a polyatomic cation, or Mismatched cations. |