detection of numerous diseases such as pulmonary fibrosis and various carcinomas. These imaging agents are typically prepared by nucleophilic fluorination of 4-hydroxy-l-proline derivatives, with [18F]fluoride, followed by deprotection. Although effective radiofluorination reactions have been developed, the overall radiosynthesis process is suboptimal due to deprotection methods that are performed manually
正电子发射断层扫描成像剂顺式和反式-4-[ 18 F]
氟-l-脯
氨酸用于检测多种疾病,例如肺纤维化和各种癌症。这些成像剂通常通过用[ 18 F]
氟化物对
4-羟基-1-脯
氨酸衍
生物进行亲核
氟化,然后脱保护来制备。尽管已经开发出有效的放射性
氟化反应,但由于手动执行的去保护方法、需要多个步骤或涉及恶劣条件,整个放射合成过程并不是最理想的。在这里,我们描述了两种合成路线的开发,这些路线允许获得前体,这些前体在温和的酸性条件下经历高度选择性的放射性
氟化反应和快速脱保护。人们发现这些方法与自动化兼容,避免了放射性中间体的手动处理。