Development of a reliable remote-controlled synthesis ofβ-[11C]-5-hydroxy-L-tryptophan on a Zymark robotic system
作者:O. C. Neels、P. L. Jager、K. P. Koopmans、E. Eriks、E. G. E. de Vries、I. P. Kema、P. H. Elsinga
DOI:10.1002/jlcr.1110
日期:2006.9
literature. We implemented the multi-enzymatic synthesis of enantiomerically pure [C-11]-L-5-HTP on a Zymarkroboticsystem to compare both tracers in patient studies. [C-11]-5-HTP can be synthesized in up to 24% radiochemical yields (EOB). Average specific activity is 44000 GBq/mmol in ca. 50 min from [C-11]methyl iodide in radiochemical purities > 99 %. The synthesis of 5-HTP is difficult due to its multi-enzymatic