Dual SPECT/MRI contrast agent and a process for the preparation thereof

摘要

The present invention relates to compounds, SPECT contrast agent and SPECT / MRI contrast agent comprising a double production method, the compound of the compound of formula 1: [Formula 1] In the formula 1, M ₁ is ^{188 Re +, 188 Re (CO)} 3 +, Cp 188 Re (CO) 3 +, 188 Re 3 +, 188 ReO 3 +, 99m Tc +, 99m Tc (CO) 3 +, Cp 99m Tc ( CO) is a _{³ +, 99m Tc 3+,} or ^{99m TcO 3+.};