کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1877724 | 1042236 | 2012 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Fully automated radiosynthesis of [11C]PBR28, a radiopharmaceutical for the translocator protein (TSPO) 18 kDa, using a GE TRACERlab FXC-Pro Fully automated radiosynthesis of [11C]PBR28, a radiopharmaceutical for the translocator protein (TSPO) 18 kDa, using a GE TRACERlab FXC-Pro](/preview/png/1877724.png)
In order to image the translocator protein (TSPO) 18 kDa in the clinic using positron emission tomography (PET) imaging, we had a cause to prepare [11C]PBR28. In this communication we highlight our novel, recently developed, one-pot synthesis of the desmethyl-PBR28 precursor, as well as present an optimized fully automated preparation of [11C]PBR28 using a GE TRACERlab FXC-Pro. Following radiolabelling, purification is achieved by HPLC and, to the best of our knowledge, the first reported example of reconstituting [11C]PBR28 into ethanolic saline using solid-phase extraction (SPE). This procedure is operationally simple, and provides high quality doses of [11C]PBR28 suitable for use in clinical PET imaging studies. Typical radiochemical yield using the optimized method is 3.6% yield (EOS, n=3), radiochemical and chemical purity are consistently >99%, and specific activities are 14,523 Ci/mmol.
Graphical AbstractFigure optionsDownload as PowerPoint slideHighlights
► This paper reports a fully automated synthesis of [11C]PBR28 using a TRACERlab FXc-pro.
► We report a solid-phase extraction technique for the reconstitution of [11C]PBR28.
► ICP-MS data for PBR28 precursor is reported confirming suitability for clinical use.
Journal: Applied Radiation and Isotopes - Volume 70, Issue 8, August 2012, Pages 1779–1783