Radiolabeling of two<sup>11</sup>C-labeled formylating agents and their application in the preparation of [<sup>11</sup>C]benzimidazole
作者:Magnus Schou、Christer Halldin
DOI:10.1002/jlcr.2972
日期:2012.11
11C-formylating agents in the preparation of [11C]benzimidazole. Methyl-ethyl and trifluoroethyl [11C]formates were obtained in 36–45% radiochemical yield using a two-step two-pot process starting from [11C]carbon dioxide. The analytical radiochemical yield of [11C]benzimidazole using each of these two 11C-formylating agents exceeded 96%. Given the high yields of the 11C-formylating agents as well as the
迄今为止,文献中很少关注用碳 11 对甲酰基进行放射性标记。我们在此报告了 [11C] 甲酸的甲酯和三氟乙酯的制备以及它们在 [11C] 苯并咪唑的制备中作为 11C-甲酰化剂的用途。使用从 [11C] 二氧化碳开始的两步两锅法,以 36-45% 的放射化学产率获得甲基乙基和三氟乙基 [11C] 甲酸酯。使用这两种 11C 甲酰化剂中的每一种,[11C] 苯并咪唑的分析放射化学产率均超过 96%。考虑到 11C-甲酰化剂的高产率以及应用后 [11C] 苯并咪唑的高产率,我们预计这些试剂可用于更广泛的底物。